Help with noise! - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

uvraise · 05-09-2017, 04:47 AM

I've been having a squeaking noise coming from the engine for about three weeks now. It goes away after about 20 minutes. I've tried replacing the idler pulley assembly and replaced the belt at the same time, but it's still there on a cold start.
Any ideas what the next logical pulley/component it could be?

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Andrews2013 2SS · 05-09-2017, 05:20 AM

I would use an automotive stethoscope, remove the probe from it and then listen around each accessory to pinpoint where it is loudest. I've seen alternators do that.

Kiwi_Camaro_2010 · 05-09-2017, 05:27 AM

Prob be air cond stretch belt, they do that, replace it, see if it goes away, they sound metalic when squeaking

Scalded Dog · 05-09-2017, 11:58 AM

It could be any component in the belt route. You seem to be doing it the right way, starting with the idler pulley and belt, but any other component that has any hesitation or inconsistency is the next- in- line culprit.

I had the same issue that you describe, changed my belt out three times, and the idler pulley twice before figuring out that it was my water pump. The pump (otherwise) seemed perfectly fine, so I had disregarded it as a suspect, but in the end, that was it.

uvraise · 05-09-2017, 12:00 PM

Quote:

Originally Posted by Scalded Dog

It could be any component in the belt route. You seem to be doing it the right way, starting with the idler pulley and belt, but any other component that has any hesitation or inconsistency is the next- in- line culprit.

I had the same issue that you describe, changed my belt out three times, and the idler pulley twice before figuring out that it was my water pump. The pump (otherwise) seemed perfectly fine, so I had disregarded it as a suspect, but in the end, that was it.

Did you do the replacement yourself? If so, what was the difficulty level? I use to dive right in when I was a kid, but I'm pushing 50 now and I can't contort the way I use to! Lol

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Scalded Dog · 05-09-2017, 12:07 PM

Quote:

Originally Posted by uvraise

Did you do the replacement yourself? If so, what was the difficulty level? I use to dive right in when I was a kid, but I'm pushing 50 now and I can't contort the way I use to! Lol

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Sorry, I should have clarified: This was on a Suburban. The principle applies, but not the experience with the car. Pushing 50 myself, too, but comparing a Suburban repair (fairly easy) to a Camaro repair would be like comparing apples to birds...

uvraise · 05-09-2017, 01:10 PM

Quote:

Originally Posted by Scalded Dog

Sorry, I should have clarified: This was on a Suburban. The principle applies, but not the experience with the car. Pushing 50 myself, too, but comparing a Suburban repair (fairly easy) to a Camaro repair would be like comparing apples to birds...

LMAO! Yeah I hear ya! I just replaced the A/C drive belt. What a pain in the A$$! So, I'll have to wait now until the AM to see if that was it. IF not, I guess I'll look at the water pump then the alternator, with a stethoscope, as suggested. The water pump doesn't look like a fun job on these engines!

CamaroFred · 05-09-2017, 05:11 PM

Don't you have any warranty left?

uvraise · 05-09-2017, 05:11 PM

Yep, just under 2K miles.

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uvraise · 05-10-2017, 04:32 AM

Quote:

Originally Posted by Kiwi_Camaro_2010

Prob be air cond stretch belt, they do that, replace it, see if it goes away, they sound metalic when squeaking

Well, it looks like you were spot on! I replaced the stretch belt yesterday and when I started her up this morning, quiet as a church mouse! So, keeping my fingers crossed!

05-09-2017, 04:47 AM	#1
uvraise Drives: 2021 Camaro SS Convertible Join Date: Apr 2016 Location: Philadelphia Posts: 235 View My Garage	Help with noise! I've been having a squeaking noise coming from the engine for about three weeks now. It goes away after about 20 minutes. I've tried replacing the idler pulley assembly and replaced the belt at the same time, but it's still there on a cold start. Any ideas what the next logical pulley/component it could be? Sent from my iPhone using Tapatalk __________________ 2015 SS2/RS, SCT Tune (Dynosteve), Vitesse Throttle Controller, Vararam VR-DRX CAI, Vararam Power Wedge TBS, Granatelli Performance MAF

05-09-2017, 05:27 AM	#3
Kiwi_Camaro_2010 Drives: Camaro 2SS/RS 2010 L99 Join Date: Jul 2012 Location: New Zealand Posts: 173 View My Garage	Prob be air cond stretch belt, they do that, replace it, see if it goes away, they sound metalic when squeaking __________________ Camaro 2SS/RS 2010 / L99 / Whipple SC /Dynatech Headers & Catts (gutted), ID 850 injectors, ZL1 fuel pump +BAP & ADM pump controller, ZR1 3Bar MAP, Dual Elite Catch Cans, 91 octane ,Eibach sway bar kit , Driveshaft loop, oil cooler delete, ADM dual gauges (AFR/Boost) LC1 wideband controller, D/D, ARP stud kit ,Callies forged slayer crank 3.622", callies ultra rods, wiseco forged pistons, L99-LS3, rollmaster double row steel timing set & comps cam timing cover,blower cam 630/660 lift,3/8 pushrods, pac gear 8deg, yella terra ultra lites. LS9 head gaskets. Texas speed custom oil pump. Asm by me.

05-09-2017, 05:11 PM	#8
CamaroFred Drives: Miss Con Ception Join Date: Aug 2016 Location: Chicagoland Posts: 2,998	Don't you have any warranty left? __________________ 2011 1SS/RS LS3 CGM

05-09-2017, 05:11 PM	#9
uvraise Drives: 2021 Camaro SS Convertible Join Date: Apr 2016 Location: Philadelphia Posts: 235 View My Garage	Yep, just under 2K miles. Sent from my iPhone using Tapatalk __________________ 2015 SS2/RS, SCT Tune (Dynosteve), Vitesse Throttle Controller, Vararam VR-DRX CAI, Vararam Power Wedge TBS, Granatelli Performance MAF

05-09-2017, 05:20 AM	#2
Andrews2013 2SS Drives: 2013 2ss coupe Crystal Red Metallic Join Date: Apr 2017 Location: Louisiana Posts: 3 View My Garage	I would use an automotive stethoscope, remove the probe from it and then listen around each accessory to pinpoint where it is loudest. I've seen alternators do that.

05-09-2017, 11:58 AM	#4
Scalded Dog Drives: 2011 1LT Join Date: Mar 2012 Location: Crestline, CA Posts: 3,029	It could be any component in the belt route. You seem to be doing it the right way, starting with the idler pulley and belt, but any other component that has any hesitation or inconsistency is the next- in- line culprit. I had the same issue that you describe, changed my belt out three times, and the idler pulley twice before figuring out that it was my water pump. The pump (otherwise) seemed perfectly fine, so I had disregarded it as a suspect, but in the end, that was it.