test my knowledge-

killyoass · 08-12-2008, 12:37 AM

i know its just a ground thing

killyoass · 08-12-2008, 12:41 AM

so what does the temp sensor do if it dont run the gauge?????

lesterl · 08-12-2008, 08:06 PM

Its probably open if it doesnt work. Engine block ground to pin should have a reading http://i191.photobucket.com/albums/z...ensorchart.gif

Madkaw_16 · 08-13-2008, 01:48 AM

I just find it hard to believe that none of the stores have it in their system, ya know? They keep telling me it's a coolant temperature sensor (#su109) but that's the one on the front, next to the radiator hose. This one has a different plug on the wire, and it fits the sensor.

I'm gonna try what Killyoass gave me today. Hopefully it works, since i'm driving it to RA in 2 weeks, lol.

killyoass · 08-18-2008, 09:08 PM

ok so why is this truck rinning 265 degrees
changed the thermostat= nothing
were gonna take it out next see what that does

lesterl · 08-18-2008, 09:43 PM

Put an ohmmeter across the CTS and read what the coolant temp is, use the chart I posted to check it against the temp you think it is (265 would be very low, just a few ohms) (you should be seeing around 200 ohms on a warmed up engine.)

jwaddell08 · 08-21-2008, 04:58 PM

88 S10 2.5 radiator leaking

Here's the history of this truck since I've had it.
-oil pressure light came on during idle went off during higher rpms
-Valve cover gasket leaking
-radiator leaks when parked right after driving (leak at the top)
-changed oil to synthetic 10w40 high mileage oil light doesn't come on anymore
-slight tapping/knocking during idle
-180,000 miles

I assume that when oil is not being sent properly throughout the engine pressure builds up in the engine and causes leaks in the valve cover and radiator. Now if I replace the radiator with a new one and replace the valve cover gasket, will my engine lock or blow up? Should I replace the oil pump before sealing the leaks?
Any comments will help. Thanks.

lesterl · 08-21-2008, 07:02 PM

Start a new thread man.

tashirosgt · 09-09-2008, 09:30 AM

Is it possible to replace the Iron Duke's camshaft timing gear without taking the engine apart? Once the grille, radiator, fan etc. are removed, there is plenty of room to work on the timing gear assembly while the engine is in the truck. But can anything be done except to admire the damaged parts?

lesterl · 09-09-2008, 09:48 PM

see post #458, It has been done tho.

franckybosnie · 09-18-2008, 09:48 PM

Hi !!

I'm trying for a long time now to find what's the problem

My 1996 jimmy 4.3 drinks too much fuel , it's consumes WAY too much fuel.
Ex : With 80$ ( +or- 14 gallons) .... I can barely drive 180 miles !
It's around 13 MPG

The tune up is done from A to Z (wire , spark plugs , Rotor , Cap , Air filter , Fuel filter .... )

The only thing I did not change so far on the tune up are the o2 sensors .

Brakes are not stuck .... Engine goes well .... No fuel leak , no leaking injectors (I removed the intake to check it) ...... Can't figure what it could be !! Any help would be appreciated!!!

thanks

lesterl · 09-19-2008, 12:47 AM

#1 Start a new thread
#2 Start said new thread in 4.3l forum not the 2.5l Iron Duke Forum
#3 Check your fuel pressure and post all your above info into that forum.

TonkaTruk92 · 10-03-2008, 05:54 PM

I need help got a iron duke motor from a rebuilder is washington and put it in my truck and it leaks oil in the back some where, it looked like the plate i took it off and resealed it and it wasnt that, im stumped man. and the temp. gauge plug in the back of the block what does that plug look like?

lesterl · 10-03-2008, 09:59 PM

Not to be rude or redundant, start a new thread. This one is old and should be dead.

FarEastDime · 10-14-2008, 03:53 PM

Quote: Originally Posted by irondukeman

not to brag, just here to help... any questions or unsolved mysteries? i can just about answer anything about these little engines- i love them, i have owned 23 lol -

ok heres one for you, that i think i figured out but lets see what you think.

88 S10 standard trans, 2.5. when i was working at my friends garage another friend brought this truck to me. new problem came, it started stalling out every now and then, and then it was a regular problem, when it warmed up, and got up to about 55 mph, the shift light would pop on, and it would stall out and you wouldnt be able to start it for atleast a half an hour. he replaced fuel filter, plugs before bringing it to me. luckily there was a boneyard in our town that my boss knew the owner pretty well, so we swapped out the dist, ecm,, and after my friend didnt want to dump any more into it he gave up and sold it to me for dirt cheap. what your oppinion.

lesterl · 10-14-2008, 07:48 PM

Not to be rude or redundant, start a new thread. This one is old and should be dead.

I think the Dukeman is gone, or DOA. RIP IRONDUKEMAN

FarEastDime · 10-14-2008, 08:06 PM

Quote: Originally Posted by lesterl

Not to be rude or redundant, start a new thread. This one is old and should be dead.

I think the Dukeman is gone, or DOA. RIP IRONDUKEMAN

so what your saying is no one has an answer for me??

lesterl · 10-14-2008, 09:52 PM

NO, saying this is a long dead thread, start a new one so if some answers come to you that it will be easier to understand than a thread with 500 posts and 200 questions especially if someone else is having trouble too then they can look for the title and say "hey thats what mine is doing, wonder what they found out." Like I said not trying to be rude, this thread is dead it is easier to troubleshoot and answer a small thread.

s10veteran · 10-18-2008, 07:59 PM

I've got a 88' short bed std. cab. With a 2.5 5spd. How many horse's or should I say. Lack of horse's doe's the two five put out. I just installed a new catylic converter and a 40 series Flowmaster. Boy it sure didn't sound like I expected it to.

Batty · 10-19-2008, 05:12 AM

heres one for ya knowlege... The lil sticker on my fan shrouds decayed to the point its unreadable...

Whats the timing suppose to be set at on an 87 2.5L l4... and all my repair manuals just say to "read the tag under the hood".. but like i said my stickers are all decayed under there...

hy35f2t · 10-19-2008, 08:29 PM

fix my truck.

see my thread.

lesterl · 10-19-2008, 09:46 PM

Veteran, duke rated around 95HP.
Batty, all GM 4 cyl are 1,3,4,2 firing order.

START A NEW THREAD, lets not clog this one up furter.

Batty · 10-20-2008, 03:41 AM

Quote: Originally Posted by lesterl

Veteran, duke rated around 95HP.
Batty, all GM 4 cyl are 1,3,4,2 firing order.

START A NEW THREAD, lets not clog this one up furter.

dont need the firing order... was asking how many degrees the timing needs to be set at... firing orders stamped right into the intake..

lesterl · 10-20-2008, 09:17 PM

8* With A/B terminal on ALDL jumpered, been mentioned in other threads ALOT, the search function leaves a lot to be desired, but it does work.

Batty · 10-21-2008, 06:28 AM

Quote: Originally Posted by lesterl

8* With A/B terminal on ALDL jumpered, been mentioned in other threads ALOT, the search function leaves a lot to be desired, but it does work.

ty... me and search boxes never get along.... they never find what im looking for...

D89S10 · 11-06-2008, 01:33 AM

Well let me start out by saying I have a 89 s10 l4 standard transmission

When I first got the truck, it started but shuttered very hard until the truck began to idle high and gradually smooth out! It had a lot of drag when I drove it home which there it sat until I began to work on it

My dad and i manually set the first piston to TDC on the compression stroke today to check the timing because we figured the previous owner just got the timing all whacked out! So we start it up BEFORE we try to time it and everything sounds smooth and better than before, we then base timed the engine and then cut it back off to tighten everything down, and now when we start it back up, IT SOUNDS JUST LIKE BEFORE IF NOT WORSE! AND THE DAY ENDED WITH THE TRUCK NOT WANTING TO KICK OVER ANYMORE !

One second its runs like a champ, and the next it doesnt run at all!!! Any ideas? IS IT THE TIMING OR WHAT???

While I was in there I also checked out the:EGR,and changed the spark plugs (except for 4) cause my dad thinks its stripped out!!!

D89S10 · 11-06-2008, 01:34 AM

Well let me start out by saying I have a 89 s10 l4 standard transmission

When I first got the truck, it started but shuttered very hard until the truck began to idle high and gradually smooth out! It had a lot of drag when I drove it home which there it sat until I began to work on it

My dad and i manually set the first piston to TDC on the compression stroke today to check the timing because we figured the previous owner just got the timing all whacked out! So we start it up BEFORE we try to time it and everything sounds smooth and better than before, we then base timed the engine and then cut it back off to tighten everything down, and now when we start it back up, IT SOUNDS JUST LIKE BEFORE IF NOT WORSE! AND THE DAY ENDED WITH THE TRUCK NOT WANTING TO KICK OVER ANYMORE !

One second its runs like a champ, and the next it doesnt run at all!!! Any ideas? IS IT THE TIMING OR WHAT???

While I was in there I also checked out the:EGR,and changed the spark plugs (except for 4) cause my dad thinks its stripped out!!!

s10veteran · 11-10-2008, 03:57 AM

I've got a 88' S10 std. cab. short bed. 5speed 2.5 my question is this. How much horsepower (lack of) doe's the 2.5 put out! My 40 serie's definately don't sound off like it should... Flowmaster suggested to have at least 160 horse's or better. Would a K&N,Tornado and maybe a performance injector do the trick? I'd like to keep the 4 but if not I'll go to either a 2.8 or 4.3 V6 Thanks Sam B Elyria,Ohio

Batty · 11-10-2008, 02:08 PM

Quote: Originally Posted by s10veteran

I've got a 88' S10 std. cab. short bed. 5speed 2.5 my question is this. How much horsepower (lack of) doe's the 2.5 put out! My 40 serie's definately don't sound off like it should... Flowmaster suggested to have at least 160 horse's or better. Would a K&N,Tornado and maybe a performance injector do the trick? I'd like to keep the 4 but if not I'll go to either a 2.8 or 4.3 V6 Thanks Sam B Elyria,Ohio

for 88

2.5L's had an output of 92hp/132 ft-lb

2.8L 125hp/150 ft-lb

4.3L 150hp/230 ft-lb

kaba168 · 11-17-2008, 02:33 PM

Ok here is my question. I have an 87 4x4 with a 4 spd man. and a 2.8, I would like to drop a 2.5 in it. What kind of advantages/ disadvantages will I have with this setup?

Batty · 11-18-2008, 05:39 AM

Quote: Originally Posted by kaba168

Ok here is my question. I have an 87 4x4 with a 4 spd man. and a 2.8, I would like to drop a 2.5 in it. What kind of advantages/ disadvantages will I have with this setup?

im not sure on this point.. but ive heard the cross memebers were different between the L4's and v6's.. but dont know 100% on that.. so hopefully someone else will be able to answer that part..

As far as advantages... greater hp and tq.. which would allow you the oppertunity to pull heavier trailer loads than you could with the L4... Little quicker acceleraction because of the hp and tq the engine wouldnt be having to work as hard from a dig..

main dissadvantage i could see for it is slightly worse gas mileage.. but i dont know what the v6's from that yr were getting.. my 2.5L L4 gots 17mpg before i rebuilt the engine...(it had some issues) but now its getting 22 mpg..

but there is quite a few performance parts out there for the v6 to help it get more power and better fuel mileage if you know where to look.. or least so ive heard..

kaba168 · 11-18-2008, 11:40 AM

Quote: Originally Posted by Batty

im not sure on this point.. but ive heard the cross memebers were different between the L4's and v6's.. but dont know 100% on that.. so hopefully someone else will be able to answer that part..

As far as advantages... greater hp and tq.. which would allow you the oppertunity to pull heavier trailer loads than you could with the L4... Little quicker acceleraction because of the hp and tq the engine wouldnt be having to work as hard from a dig..

main dissadvantage i could see for it is slightly worse gas mileage.. but i dont know what the v6's from that yr were getting.. my 2.5L L4 gots 17mpg before i rebuilt the engine...(it had some issues) but now its getting 22 mpg..

but there is quite a few performance parts out there for the v6 to help it get more power and better fuel mileage if you know where to look.. or least so ive heard..

So, you would recommend I stay with the 2.8?

Batty · 11-18-2008, 11:33 PM

woops i read that as going from 2.5L to the 2.8 when i replied... but in answer to your second question.. yeah id stay with the 2.8L...

graam3205 · 12-19-2008, 01:24 AM

I have a '96 4wd 4.3 jimmy.
Left work today, was like 12 degrees out.
Soon as i hit the road, my engine light came on, and it seemed to idle kind of strange when i got to the gas station.
Got home, shut it off, restarted, and gave it some gas from throttle body to check for engine noise. Revved to about 2500 rpm's, and let off, and idle set at 2000 in park and neutral.
Haven't checked DTC yet, but will tomorrow.
Any ideas?

lesterl · 12-19-2008, 02:41 PM

Quote: Originally Posted by graam3205

I have a '96 4wd 4.3 jimmy.
Left work today, was like 12 degrees out.
Soon as i hit the road, my engine light came on, and it seemed to idle kind of strange when i got to the gas station.
Got home, shut it off, restarted, and gave it some gas from throttle body to check for engine noise. Revved to about 2500 rpm's, and let off, and idle set at 2000 in park and neutral.
Haven't checked DTC yet, but will tomorrow.
Any ideas?

Yeah, dont mean to sound rude, but this thread is dead and in the 2.5l forum, try the 4.3l forum.

EMILBUS4390116 · 01-05-2009, 07:42 PM

I've got an '89 2.5L 2wd. Rebuilt the bottom end and put the engine back in. It didn't start at first. We loosened the fuel fitting at the throttle body to check for fuel; there was gas there. The truck started. I started it for a few days and eventually drove it down the road. The second day of driving it, I went up and down my road a couple times to get it up to temperature and when I stopped back at the garage it wouldn't start back up again.
Once again, we loosened the fuel fitting and w/ the key on gas presented itself lol
Any ideas?
Only 22,000 miles on the truck... but it had been torn apart for 6 months that I know of, before I bought it and put the engine back together..

lesterl · 01-05-2009, 09:48 PM

Quote: Originally Posted by EMILBUS4390116

I've got an '89 2.5L 2wd. Rebuilt the bottom end and put the engine back in. It didn't start at first. We loosened the fuel fitting at the throttle body to check for fuel; there was gas there. The truck started. I started it for a few days and eventually drove it down the road. The second day of driving it, I went up and down my road a couple times to get it up to temperature and when I stopped back at the garage it wouldn't start back up again.
Once again, we loosened the fuel fitting and w/ the key on gas presented itself lol
Any ideas?
Only 22,000 miles on the truck... but it had been torn apart for 6 months that I know of, before I bought it and put the engine back together..

Start a new thread that is easier to follow. THNX.

s10readytodie · 01-11-2009, 05:29 PM

so ive had an oil leak in my engine for some time now and i tried fixing it by replacing the valve gasket but its still leaking a little from some place else. and when i look under the engine i can see its coming through the flywheel and the transmission. do you have an idea of where a possible leak could be coming from?

S10toSonomaowner · 01-17-2009, 08:17 PM

Any idea or suggestion on how often the transmission fluid on the manual 5 speed transmission should be replaced?

I found where I should change the differential fluid once a year or 12000 miles or 20000 kms here in Canada but can't find a recommendation on tranny fluid. Any info appreciated.

lesterl · 01-18-2009, 01:15 PM

Start a new thread for your issue if you want a reply, Irondukeman hasnt posted in nearly a year.

***What?*** · 01-18-2009, 02:53 PM

Time to Close, ANY FURTHER QUESTIONS. Search, research, PM member/s, start new thread.

08-12-2008, 12:37 AM	#451
killyoass mr. killyoass Age: 29 Join Date: Aug 2005 Posts: 131 Location: kansas city,mo User is: OffLine	Re: test my knowledge- i know its just a ground thing

08-12-2008, 12:41 AM	#452
killyoass mr. killyoass Age: 29 Join Date: Aug 2005 Posts: 131 Location: kansas city,mo User is: OffLine	Re: test my knowledge- so what does the temp sensor do if it dont run the gauge?????

08-12-2008, 08:06 PM	#453
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- Its probably open if it doesnt work. Engine block ground to pin should have a reading http://i191.photobucket.com/albums/z...ensorchart.gif

08-13-2008, 01:48 AM	#454
Madkaw_16 Definite Obsessions Age: 28 Join Date: Aug 2006 Posts: 708 Location: K.C. Mo User is: OffLine	Re: test my knowledge- I just find it hard to believe that none of the stores have it in their system, ya know? They keep telling me it's a coolant temperature sensor (#su109) but that's the one on the front, next to the radiator hose. This one has a different plug on the wire, and it fits the sensor. I'm gonna try what Killyoass gave me today. Hopefully it works, since i'm driving it to RA in 2 weeks, lol.

08-18-2008, 09:08 PM	#455
killyoass mr. killyoass Age: 29 Join Date: Aug 2005 Posts: 131 Location: kansas city,mo User is: OffLine	Re: test my knowledge- ok so why is this truck rinning 265 degrees changed the thermostat= nothing were gonna take it out next see what that does

08-18-2008, 09:43 PM	#456
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- Put an ohmmeter across the CTS and read what the coolant temp is, use the chart I posted to check it against the temp you think it is (265 would be very low, just a few ohms) (you should be seeing around 200 ohms on a warmed up engine.)

08-21-2008, 04:58 PM	#457
jwaddell08 Registered User Join Date: Aug 2008 Posts: 2 Location: User is: OffLine	Re: test my knowledge- 88 S10 2.5 radiator leaking Here's the history of this truck since I've had it. -oil pressure light came on during idle went off during higher rpms -Valve cover gasket leaking -radiator leaks when parked right after driving (leak at the top) -changed oil to synthetic 10w40 high mileage oil light doesn't come on anymore -slight tapping/knocking during idle -180,000 miles I assume that when oil is not being sent properly throughout the engine pressure builds up in the engine and causes leaks in the valve cover and radiator. Now if I replace the radiator with a new one and replace the valve cover gasket, will my engine lock or blow up? Should I replace the oil pump before sealing the leaks? Any comments will help. Thanks.

08-21-2008, 07:02 PM	#458
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- Start a new thread man.

09-09-2008, 09:30 AM	#459
tashirosgt Registered User Join Date: Oct 2005 Posts: 73 Location: User is: OffLine	On truck replacement of timing gear possible? Is it possible to replace the Iron Duke's camshaft timing gear without taking the engine apart? Once the grille, radiator, fan etc. are removed, there is plenty of room to work on the timing gear assembly while the engine is in the truck. But can anything be done except to admire the damaged parts?

09-09-2008, 09:48 PM	#460
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- see post #458, It has been done tho.

09-18-2008, 09:48 PM	#461
franckybosnie Registered User Age: 29 Join Date: Jun 2008 Posts: 14 Location: User is: OffLine	Re: test my knowledge- Hi !! I'm trying for a long time now to find what's the problem My 1996 jimmy 4.3 drinks too much fuel , it's consumes WAY too much fuel. Ex : With 80$ ( +or- 14 gallons) .... I can barely drive 180 miles ! It's around 13 MPG The tune up is done from A to Z (wire , spark plugs , Rotor , Cap , Air filter , Fuel filter .... ) The only thing I did not change so far on the tune up are the o2 sensors . Brakes are not stuck .... Engine goes well .... No fuel leak , no leaking injectors (I removed the intake to check it) ...... Can't figure what it could be !! Any help would be appreciated!!! thanks

09-19-2008, 12:47 AM	#462
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- #1 Start a new thread #2 Start said new thread in 4.3l forum not the 2.5l Iron Duke Forum #3 Check your fuel pressure and post all your above info into that forum.

10-03-2008, 05:54 PM	#463
TonkaTruk92 Registered User Age: 26 Join Date: Jul 2007 Posts: 33 Location: User is: OffLine	Re: test my knowledge- I need help got a iron duke motor from a rebuilder is washington and put it in my truck and it leaks oil in the back some where, it looked like the plate i took it off and resealed it and it wasnt that, im stumped man. and the temp. gauge plug in the back of the block what does that plug look like?

10-03-2008, 09:59 PM	#464
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- Not to be rude or redundant, start a new thread. This one is old and should be dead.

10-14-2008, 03:53 PM	#465
FarEastDime WWW.CAROLINATRUCKSCENE. Age: 26 Join Date: Oct 2008 Posts: 1,251 Location: User is: OffLine	Re: test my knowledge- Quote: Originally Posted by irondukeman not to brag, just here to help... any questions or unsolved mysteries? i can just about answer anything about these little engines- i love them, i have owned 23 lol - ok heres one for you, that i think i figured out but lets see what you think. 88 S10 standard trans, 2.5. when i was working at my friends garage another friend brought this truck to me. new problem came, it started stalling out every now and then, and then it was a regular problem, when it warmed up, and got up to about 55 mph, the shift light would pop on, and it would stall out and you wouldnt be able to start it for atleast a half an hour. he replaced fuel filter, plugs before bringing it to me. luckily there was a boneyard in our town that my boss knew the owner pretty well, so we swapped out the dist, ecm,, and after my friend didnt want to dump any more into it he gave up and sold it to me for dirt cheap. what your oppinion.

10-14-2008, 07:48 PM	#466
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- Not to be rude or redundant, start a new thread. This one is old and should be dead. I think the Dukeman is gone, or DOA. RIP IRONDUKEMAN

10-14-2008, 08:06 PM	#467
FarEastDime WWW.CAROLINATRUCKSCENE. Age: 26 Join Date: Oct 2008 Posts: 1,251 Location: User is: OffLine	Re: test my knowledge- Quote: Originally Posted by lesterl Not to be rude or redundant, start a new thread. This one is old and should be dead. I think the Dukeman is gone, or DOA. RIP IRONDUKEMAN so what your saying is no one has an answer for me??

10-14-2008, 09:52 PM	#468
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- NO, saying this is a long dead thread, start a new one so if some answers come to you that it will be easier to understand than a thread with 500 posts and 200 questions especially if someone else is having trouble too then they can look for the title and say "hey thats what mine is doing, wonder what they found out." Like I said not trying to be rude, this thread is dead it is easier to troubleshoot and answer a small thread.

10-18-2008, 07:59 PM	#469
s10veteran Registered User Age: 41 Join Date: Aug 2008 Posts: 120 Location: Elyria,Ohio User is: OffLine	Re: test my knowledge- I've got a 88' short bed std. cab. With a 2.5 5spd. How many horse's or should I say. Lack of horse's doe's the two five put out. I just installed a new catylic converter and a 40 series Flowmaster. Boy it sure didn't sound like I expected it to.

10-19-2008, 05:12 AM	#470
Batty Registered User Join Date: Oct 2008 Posts: 119 Location: Virginia Beach, Va User is: OffLine	Re: test my knowledge- heres one for ya knowlege... The lil sticker on my fan shrouds decayed to the point its unreadable... Whats the timing suppose to be set at on an 87 2.5L l4... and all my repair manuals just say to "read the tag under the hood".. but like i said my stickers are all decayed under there...

10-19-2008, 08:29 PM	#471
hy35f2t Registered User Age: 24 Join Date: Oct 2008 Posts: 30 Location: User is: OffLine	Re: test my knowledge- fix my truck. see my thread.

10-19-2008, 09:46 PM	#472
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- Veteran, duke rated around 95HP. Batty, all GM 4 cyl are 1,3,4,2 firing order. START A NEW THREAD, lets not clog this one up furter.

10-20-2008, 03:41 AM	#473
Batty Registered User Join Date: Oct 2008 Posts: 119 Location: Virginia Beach, Va User is: OffLine	Re: test my knowledge- Quote: Originally Posted by lesterl Veteran, duke rated around 95HP. Batty, all GM 4 cyl are 1,3,4,2 firing order. START A NEW THREAD, lets not clog this one up furter. dont need the firing order... was asking how many degrees the timing needs to be set at... firing orders stamped right into the intake..

10-20-2008, 09:17 PM	#474
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- 8* With A/B terminal on ALDL jumpered, been mentioned in other threads ALOT, the search function leaves a lot to be desired, but it does work.

10-21-2008, 06:28 AM	#475
Batty Registered User Join Date: Oct 2008 Posts: 119 Location: Virginia Beach, Va User is: OffLine	Re: test my knowledge- Quote: Originally Posted by lesterl 8 With A/B terminal on ALDL jumpered, been mentioned in other threads ALOT, the search function leaves a lot to be desired, but it does work.* ty... me and search boxes never get along.... they never find what im looking for...

11-06-2008, 01:33 AM	#476
D89S10 Registered User Join Date: Nov 2008 Posts: 2 Location: User is: OffLine	Re: test my knowledge- Well let me start out by saying I have a 89 s10 l4 standard transmission When I first got the truck, it started but shuttered very hard until the truck began to idle high and gradually smooth out! It had a lot of drag when I drove it home which there it sat until I began to work on it My dad and i manually set the first piston to TDC on the compression stroke today to check the timing because we figured the previous owner just got the timing all whacked out! So we start it up BEFORE we try to time it and everything sounds smooth and better than before, we then base timed the engine and then cut it back off to tighten everything down, and now when we start it back up, IT SOUNDS JUST LIKE BEFORE IF NOT WORSE! AND THE DAY ENDED WITH THE TRUCK NOT WANTING TO KICK OVER ANYMORE ! One second its runs like a champ, and the next it doesnt run at all!!! Any ideas? IS IT THE TIMING OR WHAT??? While I was in there I also checked out the:EGR,and changed the spark plugs (except for 4) cause my dad thinks its stripped out!!!

11-06-2008, 01:34 AM	#477
D89S10 Registered User Join Date: Nov 2008 Posts: 2 Location: User is: OffLine	Re: test my knowledge- Well let me start out by saying I have a 89 s10 l4 standard transmission When I first got the truck, it started but shuttered very hard until the truck began to idle high and gradually smooth out! It had a lot of drag when I drove it home which there it sat until I began to work on it My dad and i manually set the first piston to TDC on the compression stroke today to check the timing because we figured the previous owner just got the timing all whacked out! So we start it up BEFORE we try to time it and everything sounds smooth and better than before, we then base timed the engine and then cut it back off to tighten everything down, and now when we start it back up, IT SOUNDS JUST LIKE BEFORE IF NOT WORSE! AND THE DAY ENDED WITH THE TRUCK NOT WANTING TO KICK OVER ANYMORE ! One second its runs like a champ, and the next it doesnt run at all!!! Any ideas? IS IT THE TIMING OR WHAT??? While I was in there I also checked out the:EGR,and changed the spark plugs (except for 4) cause my dad thinks its stripped out!!!

11-10-2008, 03:57 AM	#478
s10veteran Registered User Age: 41 Join Date: Aug 2008 Posts: 120 Location: Elyria,Ohio User is: OffLine	Re: test my knowledge- I've got a 88' S10 std. cab. short bed. 5speed 2.5 my question is this. How much horsepower (lack of) doe's the 2.5 put out! My 40 serie's definately don't sound off like it should... Flowmaster suggested to have at least 160 horse's or better. Would a K&N,Tornado and maybe a performance injector do the trick? I'd like to keep the 4 but if not I'll go to either a 2.8 or 4.3 V6 Thanks Sam B Elyria,Ohio

11-10-2008, 02:08 PM	#479
Batty Registered User Join Date: Oct 2008 Posts: 119 Location: Virginia Beach, Va User is: OffLine	Re: test my knowledge- Quote: Originally Posted by s10veteran I've got a 88' S10 std. cab. short bed. 5speed 2.5 my question is this. How much horsepower (lack of) doe's the 2.5 put out! My 40 serie's definately don't sound off like it should... Flowmaster suggested to have at least 160 horse's or better. Would a K&N,Tornado and maybe a performance injector do the trick? I'd like to keep the 4 but if not I'll go to either a 2.8 or 4.3 V6 Thanks Sam B Elyria,Ohio for 88 2.5L's had an output of 92hp/132 ft-lb 2.8L 125hp/150 ft-lb 4.3L 150hp/230 ft-lb Last edited by Batty : 11-10-2008 at 02:16 PM.

11-17-2008, 02:33 PM	#480
kaba168 Registered User Age: 37 Join Date: Nov 2008 Posts: 7 Location: User is: OffLine	Re: test my knowledge- Ok here is my question. I have an 87 4x4 with a 4 spd man. and a 2.8, I would like to drop a 2.5 in it. What kind of advantages/ disadvantages will I have with this setup?

11-18-2008, 05:39 AM	#481
Batty Registered User Join Date: Oct 2008 Posts: 119 Location: Virginia Beach, Va User is: OffLine	Re: test my knowledge- Quote: Originally Posted by kaba168 Ok here is my question. I have an 87 4x4 with a 4 spd man. and a 2.8, I would like to drop a 2.5 in it. What kind of advantages/ disadvantages will I have with this setup? im not sure on this point.. but ive heard the cross memebers were different between the L4's and v6's.. but dont know 100% on that.. so hopefully someone else will be able to answer that part.. As far as advantages... greater hp and tq.. which would allow you the oppertunity to pull heavier trailer loads than you could with the L4... Little quicker acceleraction because of the hp and tq the engine wouldnt be having to work as hard from a dig.. main dissadvantage i could see for it is slightly worse gas mileage.. but i dont know what the v6's from that yr were getting.. my 2.5L L4 gots 17mpg before i rebuilt the engine...(it had some issues) but now its getting 22 mpg.. but there is quite a few performance parts out there for the v6 to help it get more power and better fuel mileage if you know where to look.. or least so ive heard..

11-18-2008, 11:40 AM	#482
kaba168 Registered User Age: 37 Join Date: Nov 2008 Posts: 7 Location: User is: OffLine	Re: test my knowledge- Quote: Originally Posted by Batty im not sure on this point.. but ive heard the cross memebers were different between the L4's and v6's.. but dont know 100% on that.. so hopefully someone else will be able to answer that part.. As far as advantages... greater hp and tq.. which would allow you the oppertunity to pull heavier trailer loads than you could with the L4... Little quicker acceleraction because of the hp and tq the engine wouldnt be having to work as hard from a dig.. main dissadvantage i could see for it is slightly worse gas mileage.. but i dont know what the v6's from that yr were getting.. my 2.5L L4 gots 17mpg before i rebuilt the engine...(it had some issues) but now its getting 22 mpg.. but there is quite a few performance parts out there for the v6 to help it get more power and better fuel mileage if you know where to look.. or least so ive heard.. So, you would recommend I stay with the 2.8?

11-18-2008, 11:33 PM	#483
Batty Registered User Join Date: Oct 2008 Posts: 119 Location: Virginia Beach, Va User is: OffLine	Re: test my knowledge- woops i read that as going from 2.5L to the 2.8 when i replied... but in answer to your second question.. yeah id stay with the 2.8L...

12-19-2008, 01:24 AM	#484
graam3205 Registered User Age: 21 Join Date: Dec 2008 Posts: 1 Location: User is: OffLine	Re: test my knowledge- I have a '96 4wd 4.3 jimmy. Left work today, was like 12 degrees out. Soon as i hit the road, my engine light came on, and it seemed to idle kind of strange when i got to the gas station. Got home, shut it off, restarted, and gave it some gas from throttle body to check for engine noise. Revved to about 2500 rpm's, and let off, and idle set at 2000 in park and neutral. Haven't checked DTC yet, but will tomorrow. Any ideas?

12-19-2008, 02:41 PM	#485
lesterl Wire Splicin Fool :-) Age: 30 Join Date: May 2008 Posts: 4,408 Location: Harrisonville, MO User is: OffLine	Re: test my knowledge- Quote: Originally Posted by graam3205 I have a '96 4wd 4.3 jimmy. Left work today, was like 12 degrees out. Soon as i hit the road, my engine light came on, and it seemed to idle kind of strange when i got to the gas station. Got home, shut it off, restarted, and gave it some gas from throttle body to check for engine noise. Revved to about 2500 rpm's, and let off, and idle set at 2000 in park and neutral. Haven't checked DTC yet, but will tomorrow. Any ideas? Yeah, dont mean to sound rude, but this thread is dead and in the 2.5l forum, try the 4.3l forum.