Metal on metal screeching

lameousername · 08-10-2008, 12:28 AM

Lately I have been getting a metal on metal screeching, it seems to occur when accelerating, through 2nd and 3rd gear, and is more prominant when turning left. However once I'm up to speed it goes away. It doesn't happen all the time but I've heard it at least once a day this past week. And it goes away if I let off the gas. What could it be?

also, it's a 1991, 2.5, 5 speed, and in the past 3k kms I've replaced the tensioner and serp belt, so I don't think it's a belt problem.

revned2008 · 08-10-2008, 12:35 AM

i am just throiwing my opion in this but another good thing you should check is the tranny level. I don't think that that its the problem but you said it what making a metal on metal screeching through second and third. I was thinking is that the tranny is low on fluid.

lameousername · 08-10-2008, 12:39 AM

Quote: Originally Posted by revned2008

i am just throiwing my opion in this but another good thing you should check is the tranny level. I don't think that that its the problem but you said it what making a metal on metal screeching through second and third. I was thinking is that the tranny is low on fluid.

I actually checked this a week ago when I first noticed it and it was up fine. I hope it isn't a tranny or anything near it though... I've replaced the damn thing twice in the past year with some used ones.

lameousername · 08-10-2008, 01:51 AM

could it be the rear wheel bearing? i checked for play in wheels and there is a fair bit of wobble on the rear passenger wheel when i put hands in 6 and 12 position and press back and forth. speaking of which, do you guys think it would be safe to drive it 3300 kms like this? (i'm heading west in 2 weeks)

adamwilkes20 · 08-10-2008, 06:07 AM

wow really, I wouldnt think it should wobble at all. I had a front wheel bearing go out on me once while driving, it is NOT FUN AT ALL!!!! I would definatly have that replaced before i drove it anywhere else period.

~~SH-60B~~ · 08-10-2008, 07:35 AM

^^ I agree.Check that wheel bearing.^^

phantom_mia · 08-10-2008, 08:40 AM

shot in the dark but have you checked your brakes laterly?

lameousername · 08-10-2008, 12:44 PM

Quote: Originally Posted by phantom_mia

shot in the dark but have you checked your brakes laterly?

Ya they're fine, had to replace them a little while ago.

lameousername · 08-10-2008, 12:48 PM

Anyone got any tips for checking the actual bearing, i'm thinking it's big job that will require me to go rent some tools.

adamwilkes20 · 08-10-2008, 02:53 PM

arent the rear wheel bearing pressed on??? I do believe so

92 s10 project · 08-10-2008, 07:40 PM

If its just the outer bearing you should be able to pull it out with a slide hammer or maybe a puller in the worst case. Press the new one in by smacking it with a 2x4.

lameousername · 08-13-2008, 01:40 AM

ok, so today I decidec to raise the back wheels off the ground and "drive" it and with the wheels in the air there is no noise. any idea why?

Ilikemice · 08-13-2008, 04:53 PM

I had a nasty scraping on my truck recently when braking and turning right. I had all the wheels off and brakes checked. Turns out my exhaust box was scraping the drive shaft. I can't believe we'd missed it.

Golana · 08-15-2008, 09:51 AM

sounds -kinda- like what's going on with my tranny... is there any change when you step on the clutch pedal?

ive got a bad input shaft on the transmission, so it grinds in 3/4/5 under heavy acceleration, and it also grinds if its just idling without the clutch engauged.

lameousername · 08-15-2008, 07:29 PM

Quote: Originally Posted by Golana

sounds -kinda- like what's going on with my tranny... is there any change when you step on the clutch pedal?

ive got a bad input shaft on the transmission, so it grinds in 3/4/5 under heavy acceleration, and it also grinds if its just idling without the clutch engauged.

Come to think of it it never does it when it's coasting in neutral or when the clutch is held in. You think that could be it? I had one go before and I only got like 15 mins of grinding before it went, I've been driving around with this one screeching for the past 2 weeks.

Golana · 08-15-2008, 08:42 PM

Quote: Originally Posted by lameousername

Come to think of it it never does it when it's coasting in neutral or when the clutch is held in. You think that could be it? I had one go before and I only got like 15 mins of grinding before it went, I've been driving around with this one screeching for the past 2 weeks.

mine does it in neutral, and any time the clutch isnt pressed in.

ive been driving it like this for about 17 months now hahaa! crossing my fingers it lasts me a little while longer...

dtz s10 · 08-16-2008, 12:45 AM

throwing one more out there. Check the motor mounts. Under load the mighty "iron duke" 2.5 likes to flip on its head if you have a broken motor mount. Fan comes up and rubs on the shrowd, exhaust binds up, and a bunch of other bad shit happens."turning left" is what caught my eye

dtz s10 · 08-16-2008, 12:50 AM

left motor mounts were prone to break first. that would explain noise on left turns the engine is tipping on its side a bit. Load up the engine and have a set of eyes watch the engine rock

lameousername · 08-22-2008, 10:43 PM

Finally figured it out, front u-joint. OEMs are a pain in the ass to remove.

92 s10 project · 08-23-2008, 01:11 AM

Quote: Originally Posted by Golana

mine does it in neutral, and any time the clutch isnt pressed in.

ive been driving it like this for about 17 months now hahaa! crossing my fingers it lasts me a little while longer...

Drove mine for 4 years before attempting a fix, in process of putting transmission back together right now. I had of course bad input bearing, and just about a bad every other bearing too lol.

08-10-2008, 12:28 AM	#1
lameousername Registered User Join Date: Jul 2007 Posts: 192 Location: ontario User is: OffLine	Metal on metal screeching Lately I have been getting a metal on metal screeching, it seems to occur when accelerating, through 2nd and 3rd gear, and is more prominant when turning left. However once I'm up to speed it goes away. It doesn't happen all the time but I've heard it at least once a day this past week. And it goes away if I let off the gas. What could it be? also, it's a 1991, 2.5, 5 speed, and in the past 3k kms I've replaced the tensioner and serp belt, so I don't think it's a belt problem.
	[Reply w/Quote]

08-10-2008, 12:35 AM	#2
revned2008 Registered User Join Date: Aug 2008 Posts: 50 Location: User is: OffLine	Re: Metal on metal screeching i am just throiwing my opion in this but another good thing you should check is the tranny level. I don't think that that its the problem but you said it what making a metal on metal screeching through second and third. I was thinking is that the tranny is low on fluid.
	[Reply w/Quote]

08-10-2008, 12:39 AM	#3
lameousername Registered User Join Date: Jul 2007 Posts: 192 Location: ontario User is: OffLine	Re: Metal on metal screeching Quote: Originally Posted by revned2008 i am just throiwing my opion in this but another good thing you should check is the tranny level. I don't think that that its the problem but you said it what making a metal on metal screeching through second and third. I was thinking is that the tranny is low on fluid. I actually checked this a week ago when I first noticed it and it was up fine. I hope it isn't a tranny or anything near it though... I've replaced the damn thing twice in the past year with some used ones.
	[Reply w/Quote]

08-10-2008, 01:51 AM	#4
lameousername Registered User Join Date: Jul 2007 Posts: 192 Location: ontario User is: OffLine	Re: Metal on metal screeching could it be the rear wheel bearing? i checked for play in wheels and there is a fair bit of wobble on the rear passenger wheel when i put hands in 6 and 12 position and press back and forth. speaking of which, do you guys think it would be safe to drive it 3300 kms like this? (i'm heading west in 2 weeks)
	[Reply w/Quote]

08-10-2008, 06:07 AM	#5
adamwilkes20 Registered User Age: 29 Join Date: Sep 2007 Posts: 388 Location: Zephyrhills, Fl User is: Online	Re: Metal on metal screeching wow really, I wouldnt think it should wobble at all. I had a front wheel bearing go out on me once while driving, it is NOT FUN AT ALL!!!! I would definatly have that replaced before i drove it anywhere else period.
	[Reply w/Quote]


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08-10-2008, 07:35 AM	#6
~~SH-60B~~ Sucking dick while being Banned Join Date: Nov 2007 Posts: 1,034 Location: Meriden/CT/USA User is: OffLine	Re: Metal on metal screeching ^^ I agree.Check that wheel bearing.^^
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08-10-2008, 08:40 AM	#7
phantom_mia Registered User Join Date: Nov 2007 Posts: 566 Location: treasure coast User is: OffLine	Re: Metal on metal screeching shot in the dark but have you checked your brakes laterly?
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08-10-2008, 12:44 PM	#8
lameousername Registered User Join Date: Jul 2007 Posts: 192 Location: ontario User is: OffLine	Re: Metal on metal screeching Quote: Originally Posted by phantom_mia shot in the dark but have you checked your brakes laterly? Ya they're fine, had to replace them a little while ago.
	[Reply w/Quote]

08-10-2008, 12:48 PM	#9
lameousername Registered User Join Date: Jul 2007 Posts: 192 Location: ontario User is: OffLine	Re: Metal on metal screeching Anyone got any tips for checking the actual bearing, i'm thinking it's big job that will require me to go rent some tools.
	[Reply w/Quote]

08-10-2008, 02:53 PM	#10
adamwilkes20 Registered User Age: 29 Join Date: Sep 2007 Posts: 388 Location: Zephyrhills, Fl User is: Online	Re: Metal on metal screeching arent the rear wheel bearing pressed on??? I do believe so
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08-10-2008, 07:40 PM	#11
92 s10 project R/C Guru Age: 21 Join Date: Jan 2007 Posts: 394 Location: St Louis, MO User is: OffLine	Re: Metal on metal screeching If its just the outer bearing you should be able to pull it out with a slide hammer or maybe a puller in the worst case. Press the new one in by smacking it with a 2x4.
	[Reply w/Quote]

08-13-2008, 01:40 AM	#12
lameousername Registered User Join Date: Jul 2007 Posts: 192 Location: ontario User is: OffLine	Re: Metal on metal screeching ok, so today I decidec to raise the back wheels off the ground and "drive" it and with the wheels in the air there is no noise. any idea why?
	[Reply w/Quote]

08-13-2008, 04:53 PM	#13
Ilikemice I drive on the left. Age: 22 Join Date: Mar 2008 Posts: 181 Location: England User is: Online	Re: Metal on metal screeching I had a nasty scraping on my truck recently when braking and turning right. I had all the wheels off and brakes checked. Turns out my exhaust box was scraping the drive shaft. I can't believe we'd missed it.
	[Reply w/Quote]

08-15-2008, 09:51 AM	#14
Golana Truck #121616 Age: 22 Join Date: Jan 2007 Posts: 1,939 Location: High River, Alberta User is: OffLine	Re: Metal on metal screeching sounds -kinda- like what's going on with my tranny... is there any change when you step on the clutch pedal? ive got a bad input shaft on the transmission, so it grinds in 3/4/5 under heavy acceleration, and it also grinds if its just idling without the clutch engauged.
	[Reply w/Quote]

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08-15-2008, 07:29 PM	#15
lameousername Registered User Join Date: Jul 2007 Posts: 192 Location: ontario User is: OffLine	Re: Metal on metal screeching Quote: Originally Posted by Golana sounds -kinda- like what's going on with my tranny... is there any change when you step on the clutch pedal? ive got a bad input shaft on the transmission, so it grinds in 3/4/5 under heavy acceleration, and it also grinds if its just idling without the clutch engauged. Come to think of it it never does it when it's coasting in neutral or when the clutch is held in. You think that could be it? I had one go before and I only got like 15 mins of grinding before it went, I've been driving around with this one screeching for the past 2 weeks.
	[Reply w/Quote]

08-15-2008, 08:42 PM	#16
Golana Truck #121616 Age: 22 Join Date: Jan 2007 Posts: 1,939 Location: High River, Alberta User is: OffLine	Re: Metal on metal screeching Quote: Originally Posted by lameousername Come to think of it it never does it when it's coasting in neutral or when the clutch is held in. You think that could be it? I had one go before and I only got like 15 mins of grinding before it went, I've been driving around with this one screeching for the past 2 weeks. mine does it in neutral, and any time the clutch isnt pressed in. ive been driving it like this for about 17 months now hahaa! crossing my fingers it lasts me a little while longer...
	[Reply w/Quote]

08-16-2008, 12:45 AM	#17
dtz s10 Registered User Age: 38 Join Date: Apr 2008 Posts: 31 Location: Beamsville Ontario User is: OffLine	Re: Metal on metal screeching throwing one more out there. Check the motor mounts. Under load the mighty "iron duke" 2.5 likes to flip on its head if you have a broken motor mount. Fan comes up and rubs on the shrowd, exhaust binds up, and a bunch of other bad shit happens."turning left" is what caught my eye
	[Reply w/Quote]

08-16-2008, 12:50 AM	#18
dtz s10 Registered User Age: 38 Join Date: Apr 2008 Posts: 31 Location: Beamsville Ontario User is: OffLine	Re: Metal on metal screeching left motor mounts were prone to break first. that would explain noise on left turns the engine is tipping on its side a bit. Load up the engine and have a set of eyes watch the engine rock
	[Reply w/Quote]

08-22-2008, 10:43 PM	#19
lameousername Registered User Join Date: Jul 2007 Posts: 192 Location: ontario User is: OffLine	Re: Metal on metal screeching Finally figured it out, front u-joint. OEMs are a pain in the ass to remove.
	[Reply w/Quote]

08-23-2008, 01:11 AM	#20
92 s10 project R/C Guru Age: 21 Join Date: Jan 2007 Posts: 394 Location: St Louis, MO User is: OffLine	Re: Metal on metal screeching Quote: Originally Posted by Golana mine does it in neutral, and any time the clutch isnt pressed in. ive been driving it like this for about 17 months now hahaa! crossing my fingers it lasts me a little while longer... Drove mine for 4 years before attempting a fix, in process of putting transmission back together right now. I had of course bad input bearing, and just about a bad every other bearing too lol.
	[Reply w/Quote]