"Chirp" at Low RPM + Knock - Page 6 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

FosterSS · 06-09-2013, 01:52 PM

Quote:

Originally Posted by thahemp

Any tell-tale lines or patterns on your rotor?

Ill have to check closely again, think it could be something wedged in between? I know I sure as hell have pad left. got some Cobalt frictions I was going to slap on.

jaysonstuart · 06-09-2013, 02:00 PM

The knock I hear in all your videos it sounds internal to me. I'd put your tune back to stock and roll her into the dealership and let them take care of it before it fails. My work van has the same knock at start up, but it's expected the engine has 240k on a vortec 4.8 liter.

thahemp · 06-09-2013, 02:14 PM

Quote:

Originally Posted by FosterSS

Ill have to check closely again, think it could be something wedged in between? I know I sure as hell have pad left. got some Cobalt frictions I was going to slap on.

Maybe so. Does it brake evenly when you come to a stop? I have always been able to feel warped rotors with light braking just before the car comes to a complete stop. I'd just take it apart and inspect everything and put it back together to start with. Probably wouldn't take you longer than 30 minutes.

Quote:

Originally Posted by jaysonstuart

The knock I hear in all your videos it sounds internal to me. I'd put your tune back to stock and roll her into the dealership and let them take care of it before it fails. My work van has the same knock at start up, but it's expected the engine has 240k on a vortec 4.8 liter.

Very well could be! There are still 4 cylinders worth of cam lobes I'm unable to check without pulling the heads. I'm just paying extra close attention all the time and knocking possibilities off one by one. There are only so many parts to check... eventually I'll get through all of them. I know the stealership sounds like the rational move to most people, but I'm only doing that if I'm forced to admit defeat. Call me stubborn.

mikeyg36 · 06-09-2013, 03:05 PM

You're stubborn

thahemp · 06-09-2013, 03:31 PM

Yeppirs!

I checked the plugs today and everything was clean and dry. I think I'm going to pull the headers off next and put the factory mids back in for a few minutes. That'll give me a chance to look the headers over a little better for holes. Gettin pretty close to pulling those heads!

I think once it gets down to just the heads left to check I'm gonna order go fast parts to do while I have the motor apart. That cam install may just happen a little sooner than I had planned.

FosterSS · 06-09-2013, 04:32 PM

yea..braking is fine though. ill get in there and check everything out to be sure.

litle88 · 06-09-2013, 05:12 PM

While heads are off send them to WCCH.

FosterSS · 06-09-2013, 05:15 PM

Quote:

Originally Posted by litle88

While heads are off send them to WCCH.

How much would that run ya Litle?

litle88 · 06-09-2013, 05:20 PM

It all depends on what stage you get bud, the website is kinda confusing. I'd call lol.

litle88 · 06-09-2013, 05:20 PM

The real power comes from the heads. Hands down IMHO.

FosterSS · 06-09-2013, 06:14 PM

Yeah, cant wait to get mine done.

cid067 · 07-28-2013, 05:30 PM

Was there any resolution to your issue?

thahemp · 07-28-2013, 05:38 PM

Nope. She still squeaks with the best of them. My plan is to pull the heads and do new lifters when i finally get my cam parts list bought.

Still no damage apparent though. Really weird. Do you have a similar problem?

cid067 · 07-28-2013, 09:55 PM

Yes chirping knocking sound coming from sounds like valve train area drivers side headers amplify the sound. Pulled the valve cover could not pin point where it was coming from. Was thinking lifters dont know for sure.

06-09-2013, 03:31 PM	#75
thahemp Geek Drives: 2012 Black LS3 Join Date: Jan 2012 Location: Derby, KS Posts: 4,343 View My Garage	Yeppirs! I checked the plugs today and everything was clean and dry. I think I'm going to pull the headers off next and put the factory mids back in for a few minutes. That'll give me a chance to look the headers over a little better for holes. Gettin pretty close to pulling those heads! I think once it gets down to just the heads left to check I'm gonna order go fast parts to do while I have the motor apart. That cam install may just happen a little sooner than I had planned. __________________ 01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001 x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x

06-09-2013, 04:32 PM	#76
FosterSS Guardians Of The Night Drives: '13 ZL1 CRT Join Date: May 2011 Location: New Mexico Posts: 500 View My Garage	yea..braking is fine though. ill get in there and check everything out to be sure. __________________ 2013 ZL1 Crystal Red Tintcoat, Stock...for now 1968 SS/RS 396- being resurrected. 2011 SS LS3-Cammed, bolt-ons.(SOLD)

06-09-2013, 05:12 PM	#77
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	While heads are off send them to WCCH. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

06-09-2013, 05:20 PM	#79
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	It all depends on what stage you get bud, the website is kinda confusing. I'd call lol. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

06-09-2013, 05:20 PM	#80
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	The real power comes from the heads. Hands down IMHO. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

06-09-2013, 02:00 PM	#72
jaysonstuart Drives: 2016 Camaro 2SS Join Date: Jun 2012 Location: Albany, OR Posts: 685 View My Garage	The knock I hear in all your videos it sounds internal to me. I'd put your tune back to stock and roll her into the dealership and let them take care of it before it fails. My work van has the same knock at start up, but it's expected the engine has 240k on a vortec 4.8 liter.

06-09-2013, 03:05 PM	#74
mikeyg36 Drives: 2015 Z/28 #533 Join Date: Jul 2012 Location: NY Posts: 6,731	You're stubborn

06-09-2013, 06:14 PM	#81
FosterSS Guardians Of The Night Drives: '13 ZL1 CRT Join Date: May 2011 Location: New Mexico Posts: 500 View My Garage	Yeah, cant wait to get mine done. __________________ 2013 ZL1 Crystal Red Tintcoat, Stock...for now 1968 SS/RS 396- being resurrected. 2011 SS LS3-Cammed, bolt-ons.(SOLD)

07-28-2013, 05:30 PM	#82
cid067 Drives: Black 1SS/RS LS3 M6 "The Toy" Join Date: Dec 2011 Location: Las Cruces, NM Posts: 291 View My Garage	Was there any resolution to your issue? __________________ 2010 1SS/RS Diablo Sport Trinity JRE Tune OBX headers with Cat delete Borla Cat back Volant PowerCore CAI BMR adjustable trialing arms 4.11 Gears JRE cam package.

07-28-2013, 05:38 PM	#83
thahemp Geek Drives: 2012 Black LS3 Join Date: Jan 2012 Location: Derby, KS Posts: 4,343 View My Garage	Nope. She still squeaks with the best of them. My plan is to pull the heads and do new lifters when i finally get my cam parts list bought. Still no damage apparent though. Really weird. Do you have a similar problem? __________________ 01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001 x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x

07-28-2013, 09:55 PM	#84
cid067 Drives: Black 1SS/RS LS3 M6 "The Toy" Join Date: Dec 2011 Location: Las Cruces, NM Posts: 291 View My Garage	Yes chirping knocking sound coming from sounds like valve train area drivers side headers amplify the sound. Pulled the valve cover could not pin point where it was coming from. Was thinking lifters dont know for sure. __________________ 2010 1SS/RS Diablo Sport Trinity JRE Tune OBX headers with Cat delete Borla Cat back Volant PowerCore CAI BMR adjustable trialing arms 4.11 Gears JRE cam package.