How I fixed my cutting out/stumbling/missing on my '99 Blazer - S-10 Forum
 
LinkBack Thread Tools
post #1 of 17 Old 12-08-2011, 04:26 PM Thread Starter
Registered Users
 
Join Date: Dec 2011
Age: 63
Posts: 4

User is: ruyd153 is offline
How I fixed my cutting out/stumbling/missing on my '99 Blazer

With the guidance of my childhood friend who has been a mechanic for about 40 yrs., I was able to fix my 1999 S-10 Blazer 4.3L problem. I've got 160K on my SUV. The symptoms were 1) Only after the engine was warm it would cut-out intermittently for a micro-second, it would miss intermittently or stumble intermittently. There was no pattern to the problem : whether accelerating or coasting & NO CODES being generated. Like 99% of Blazer owners, I changed fuel filter,air filter , cleaned the EGR valve and sprayed water on spk. plg. wiring to check for breaks in them w/ no real improvement. It had been exactly 60K since last tune up so I installed new dist. cap, rotor,wiring & spk. plgs.....Still no change in symptoms.. I called my friend Frank, he told me to disconnect the EGR valve & drive it X 15 -20 min. & report back findings . It improved very little. Frank then had me re-connect EGR valve & disconnect the mass air flow sensor & drive x 15-20 min. Voila!! All symptoms disappeared!!!!! The MIL lit up this time. I replaced the mass air flow sensor(Only new not reman. O.E.M. AC Delco per Frank's instructions). It cost me $ 236.00 out the door @ Full Service Co. in San Antonio,Tx.). BTW I did find a new one online for $111.0 before shipping but I don't have the time to wait for it. It's been 4 days now & SUV runs like a champ. I also found a great website to help w/ diagnostics...."http://easyautodiagnostics.com/" R.A. D.

ruyd153 is offline  
Sponsored Links
Advertisement
 
post #2 of 17 Old 12-08-2011, 05:08 PM
Registered User
 
dt99sls's Avatar
 
Join Date: Apr 2011
Location: Kensington, Prince Edward Island
Age: 28
Posts: 951

User is: dt99sls is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

I'm having the same problem with my 99 sonoma. I will try this and see if it helps.

Thanks for posting how you fixed the problem.

1999 Sonoma SLS stepside extended cab zq8.
4.3l auto, magnaflow muffler with polished stainless tip. Soft tonneau cover, window visors, color matched grille.

1999 Jimmy SLS 2 door 4wd. 4.3 auto, g80 locking rear, thrush muffler, 1995 s10 2wd wheels, soon to be bedlinered from the bottom of the doors down and fenders/bumpers and baja bumper bar.


__________________________________
dt99sls is offline  
post #3 of 17 Old 12-08-2011, 08:04 PM
Blazin' in Belize
 
dna59's Avatar
 
Join Date: Apr 2003
Location: Belize
Age: 30
Posts: 212

User is: dna59 is offline
Send a message via MSN to dna59
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

i'm having the same problem...gonna try this

'00 Chevy Blazer 2DR
dna59 is offline  
post #4 of 17 Old 12-08-2011, 09:20 PM
Blazin' in Belize
 
dna59's Avatar
 
Join Date: Apr 2003
Location: Belize
Age: 30
Posts: 212

User is: dna59 is offline
Send a message via MSN to dna59
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

Just unplugged mine and it doesn't feel laggy in the low end again. Where did u find the one for 110?

'00 Chevy Blazer 2DR
dna59 is offline  
post #5 of 17 Old 12-09-2011, 12:19 PM
Registered User
 
dt99sls's Avatar
 
Join Date: Apr 2011
Location: Kensington, Prince Edward Island
Age: 28
Posts: 951

User is: dt99sls is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

^ The same thing happened to me. I have been looking around online for one.

Auto parts warehouse has some.

http://www.autopartswarehouse.com/se...0Flow%20Sensor

I called a local parts store that I usually buy from and they want $286 for the sensor.

RockAuto has a delphi mass air flow sensor for $109.34.

There is a 5% discount code for RockAuto you can use on it too.

http://www.s10forum.com/forum/f279/r...1/#post7643904

1999 Sonoma SLS stepside extended cab zq8.
4.3l auto, magnaflow muffler with polished stainless tip. Soft tonneau cover, window visors, color matched grille.

1999 Jimmy SLS 2 door 4wd. 4.3 auto, g80 locking rear, thrush muffler, 1995 s10 2wd wheels, soon to be bedlinered from the bottom of the doors down and fenders/bumpers and baja bumper bar.


__________________________________
dt99sls is offline  
post #6 of 17 Old 12-09-2011, 12:49 PM
Registered User
 
Join Date: Dec 2011
Age: 47
Posts: 22

User is: mrmint69 is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

I have been cleaning my every once in a while on all my vehicles. Using the special spray for electrical. Has anyone tried cleaning theres before replacing?
mrmint69 is offline  
post #7 of 17 Old 12-09-2011, 06:48 PM
Registered User
 
dt99sls's Avatar
 
Join Date: Apr 2011
Location: Kensington, Prince Edward Island
Age: 28
Posts: 951

User is: dt99sls is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

I haven't ordered the sensor. I will look into cleaning it.

1999 Sonoma SLS stepside extended cab zq8.
4.3l auto, magnaflow muffler with polished stainless tip. Soft tonneau cover, window visors, color matched grille.

1999 Jimmy SLS 2 door 4wd. 4.3 auto, g80 locking rear, thrush muffler, 1995 s10 2wd wheels, soon to be bedlinered from the bottom of the doors down and fenders/bumpers and baja bumper bar.


__________________________________
dt99sls is offline  
post #8 of 17 Old 12-09-2011, 06:55 PM
Blazin' in Belize
 
dna59's Avatar
 
Join Date: Apr 2003
Location: Belize
Age: 30
Posts: 212

User is: dna59 is offline
Send a message via MSN to dna59
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

I visited the link the OP posted. I read the how to clean the maf section. I had no idea the two ends could come off the actual maf. I took those off and found it was still dirty despite "cleaning" it twice before. Used almost a whole can of electrical cleaner on it until the "hot wires" looked new. Now it has its BALLS back!

'00 Chevy Blazer 2DR
dna59 is offline  
post #9 of 17 Old 12-09-2011, 07:29 PM
Registered User
 
dt99sls's Avatar
 
Join Date: Apr 2011
Location: Kensington, Prince Edward Island
Age: 28
Posts: 951

User is: dt99sls is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

Thanks for the info. I will have to check that out. Hopefully it will work for me too. I didn't have any codes for it before I unplugged it.

1999 Sonoma SLS stepside extended cab zq8.
4.3l auto, magnaflow muffler with polished stainless tip. Soft tonneau cover, window visors, color matched grille.

1999 Jimmy SLS 2 door 4wd. 4.3 auto, g80 locking rear, thrush muffler, 1995 s10 2wd wheels, soon to be bedlinered from the bottom of the doors down and fenders/bumpers and baja bumper bar.


__________________________________
dt99sls is offline  
post #10 of 17 Old 12-09-2011, 07:40 PM
Blazin' in Belize
 
dna59's Avatar
 
Join Date: Apr 2003
Location: Belize
Age: 30
Posts: 212

User is: dna59 is offline
Send a message via MSN to dna59
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

Neither did I. I just knew something was wrong but didn't have time nor money to troubleshoot. Today is the first time in a while I enjoyed driving my truck.

'00 Chevy Blazer 2DR
dna59 is offline  
post #11 of 17 Old 12-09-2011, 11:09 PM
Budget Ballin FTS!
 
BrandonR's Avatar
 
Join Date: May 2010
Location: Cullman,Al
Age: 27
Posts: 3,652

User is: BrandonR is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

I have to say, I want to vote this guy for BEST FIRST POST EVER!

I too will try this. tomorrow.

2001 4 door blazer All brand new suspension, bagged
BrandonR is offline  
post #12 of 17 Old 12-11-2011, 10:02 AM
Registered User
 
jgwone21two's Avatar
 
Join Date: Mar 2009
Location: Roseville,MI
Age: 30
Posts: 86

User is: jgwone21two is offline
Send a message via Yahoo to jgwone21two
Lightbulb Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

Quote:
Originally Posted by BrandonR View Post
I have to say, I want to vote this guy for BEST FIRST POST EVER!

I too will try this. tomorrow.
Id 2nd that,

2002 blazer 2dr 2wd 97 rear bumper.3/4 drop,Poly Bushings all around,ZR1 [4]17X9.5,Jimmy SLS front end, future plans a s/c when the L35V6 blows up,L31V8.
jgwone21two is offline  
post #13 of 17 Old 12-11-2011, 06:43 PM
Registered User
 
jminucci's Avatar
 
Join Date: Sep 2011
Location: texas
Age: 24
Posts: 56

User is: jminucci is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

i tryed this today and it didnt work at all my truck still runs the same as before i did this test
jminucci is offline  
post #14 of 17 Old 12-11-2011, 08:52 PM Thread Starter
Registered Users
 
Join Date: Dec 2011
Age: 63
Posts: 4

User is: ruyd153 is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

Quote:
Originally Posted by dna59 View Post
Just unplugged mine and it doesn't feel laggy in the low end again. Where did u find the one for 110?

Just google the part. I think it was on Amazon or gmpartsdirect.com.

BTW -12/11/2011...... Follow-up to How I fixed my cutting out/stumbling/missing(Dec.2011) Yesterday the SUV starting acting up again w/ same symptoms but markedly less severe. This morning I started the SUV up (about 46 Degrees)..started right up & it idled for about 30 secs. & died. I started it up again & began moving wires/ connectors around & when I wiggled the coil wires I saw a spark between the to wires as they enter the coil connector. I shut down the engine & removed the connector, un-twisted the wire ,separated them away from each other & coated them w/ contact cement to insulate them. I drove the SUV all day & never had a hiccup. I guess that was the original problem? or that along w/ a bad MAF. Anyway..Happy it's all fixed!!! I write this so if anyone has this kind of problem ,they can check the coil wires for shorting. R.A.D.
ruyd153 is offline  
post #15 of 17 Old 12-11-2011, 08:54 PM Thread Starter
Registered Users
 
Join Date: Dec 2011
Age: 63
Posts: 4

User is: ruyd153 is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

-12/11/2011...... Follow-up to How I fixed my cutting out/stumbling/missing(Dec.2011) Yesterday the SUV starting acting up again w/ same symptoms but markedly less severe. This morning I started the SUV up (about 46 Degrees)..started right up & it idled for about 30 secs. & died. I started it up again & began moving wires/ connectors around & when I wiggled the coil wires I saw a spark between the to wires as they enter the coil connector. I shut down the engine & removed the connector, un-twisted the wire ,separated them away from each other & coated them w/ contact cement to insulate them. I drove the SUV all day & never had a hiccup. I guess that was the original problem? or that along w/ a bad MAF. Anyway..Happy it's all fixed!!! I write this so if anyone has this kind of problem ,they can check the coil wires for shorting. R.A.D.
ruyd153 is offline  
post #16 of 17 Old 12-11-2011, 09:06 PM
love to work on my truck
 
Jons1995s10's Avatar
 
Join Date: Sep 2011
Location: northern Utah
Age: 49
Posts: 189

User is: Jons1995s10 is offline
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

i use a spray bottle to mist the wires if it starts looking like fireworks i replace the wires

1995 S10 LS 4.3 vortec 136k 1" block on back front stock, 4 wheel disc brakes gt4/g80 rear diff

2000 Blazer LT 4.3 Vortec

2001 Chev Silverado 4.8 Vortec 2wd 47K miles Wicked Flow exhaust K&N cold air intake moon visor

Keep on Minitruckin'
Jons1995s10 is offline  
post #17 of 17 Old 12-13-2011, 08:11 AM
Blazin' in Belize
 
dna59's Avatar
 
Join Date: Apr 2003
Location: Belize
Age: 30
Posts: 212

User is: dna59 is offline
Send a message via MSN to dna59
Re: How I fixed my cutting out/stumbling/missing on my '99 Blazer

^neat trick...i gotta remember that

'00 Chevy Blazer 2DR
dna59 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the S-10 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.


Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome