Need help solving an idle problem. - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Kwik · 11-08-2011, 05:23 PM

Any idea what would cause that?

Parag · 11-08-2011, 05:33 PM

what cam and springs did you put in? could have overreved and bent a valve. or just a broke outer spring if you have doubles. dont use brake cleaner. my mechanic uncle always uses starting fluid to check for vacuum leaks even if there is not issues. vacuum leaks are very bad on motors. brake cleaner is too acidic, will cause more damage than you want. carb cleaner is bad on the rings too.

Kwik · 11-08-2011, 05:51 PM

Running a Comp Cams 229 / 236 with 112 LSA. Comp Cams double springs and retainers. If it was a bent valve or broken spring, wouldn't it always be acting up?
I wonder if LG Motorsports could figure out the problem?

mikeSS · 11-08-2011, 05:56 PM

Quote:

Originally Posted by Kwik

Running a Comp Cams 229 / 236 with 112 LSA. Comp Cams double springs and retainers. If it was a bent valve or broken spring, wouldn't it always be acting up?
I wonder if LG Motorsports could figure out the problem?

i broken a out or inner spring with my duel springs. it made noises at times ran the same. but once both were broken you will know. lol. car will not idle right or even drive right at all. i am not what valve problem would be like though.

patternpilot · 11-08-2011, 06:02 PM

I would stay away from any liquid solvent. Anything that come into contact with the rubber parts will cause deterioration. Back in the day we always used propane. Take a small propane burner and with it unlit let the gas leak around the areas of the intake manifold and hoses. Watch your tack. If there is a leak you will see a slight increase in RPM's

garcmol · 11-08-2011, 06:11 PM

Are you getting a CEL or stabilitrak message on the DIC?

Are your plug wires all seated? Even loose can cause some of the idle issues you describe. And a misfire will sometimes trigger "service stabilitrak" on the DIC. Some Dilectic grease in the plug boots and make sure they're all seated may be all you need.

Kwik · 11-08-2011, 06:30 PM

Hasn't thrown any codes. I will double check plug wires tomorrow. Could a loose injector cause this? Car runs like a scalded dog except when you come to a stop. Thanks to all for your input.

garcmol · 11-08-2011, 06:37 PM

I would think so. O ring bad on an injector maybe.

When you did your exhaust did you put headers on? If yes, did you use a GM exhaust manifold gasket? Exhaust leaks can cause the car to miss, surge, idle funny, lots of things AND it won't throw a code.

Kwik · 11-08-2011, 08:16 PM

Running Kooks headers, off-road pipes and Magnaflow cat-backs. I can't remember what gasket we used. Headers have been on for months, so I doubt they are the problem.

garcmol · 11-08-2011, 08:43 PM

Okay, just putting it out there. The forum member with the exhaust header/gasket leak had his on for months, drove about 2000 miles and the tick kept getting worse. His gaskets were felt and they gave way. Then began the surging, would die at idle. Something to keep in the troubleshooting book.

vroomapunk · 11-08-2011, 10:58 PM

Usually you hear a tick with an exhaust leak, or if its bigger, its an even louder/weirder noise.
It very well could be a back pressure issue, this is something ive never had to deal with, though

garcmol · 11-09-2011, 06:50 AM

Here's the thread for what was believed an air leak, but the result was the exhaust manifold gasket leaking around #6 and #8.

http://www.camaro5.com/forums/showth...t=engine+surge

One of the highlights from that thread

http://www.camaro5.com/forums/showpo...&postcount=562

And a video of the ticking

Kwik · 01-25-2012, 06:56 PM

Problem was solved by a tune at LG Motorsports. Thanks Anthony!!!

11-08-2011, 05:23 PM	#15
Kwik Drives: car Join Date: Feb 2010 Location: USA Posts: 801	Any idea what would cause that? __________________ Upgrades to suspension, brakes, motor and appearance. 482.7 RWHP- 434.2 RWT - All motor.

11-08-2011, 05:51 PM	#17
Kwik Drives: car Join Date: Feb 2010 Location: USA Posts: 801	Running a Comp Cams 229 / 236 with 112 LSA. Comp Cams double springs and retainers. If it was a bent valve or broken spring, wouldn't it always be acting up? I wonder if LG Motorsports could figure out the problem? __________________ Upgrades to suspension, brakes, motor and appearance. 482.7 RWHP- 434.2 RWT - All motor.

11-08-2011, 06:02 PM	#19
patternpilot Drives: 2012 2SS/RS Join Date: Aug 2011 Location: Tri-Cities WA. Posts: 934 View My Garage	Vacuume leak check I would stay away from any liquid solvent. Anything that come into contact with the rubber parts will cause deterioration. Back in the day we always used propane. Take a small propane burner and with it unlit let the gas leak around the areas of the intake manifold and hoses. Watch your tack. If there is a leak you will see a slight increase in RPM's __________________ There's more to life than gas mileage LS3, Whipple, Custom Comp Cam, springs, pushrods, timing set, CAI intake, Apex cold air scoop, Doug Thorley TRI-Y headers, Billet Custom Products baffled Valve covers, Mighty Mouse Catch can, ADM FPCM, ZL1 fuel pump, MSD boost-a-pump, Hex Vent hood vents, ProSport gauges(fuel pressure, AFR, Boost), Corsa, 100 cell Cats. Jannetty remote tuned, Pfadt trailing arms, all parts user installed. No Dyno yet. Manual trans. 3.45 gears.

11-08-2011, 06:11 PM	#20
garcmol Drives: 10 1LT SIM; 91 B4C sleeper Z Join Date: Aug 2009 Location: Ft. Mitchell, Alabama Posts: 7,198	Are you getting a CEL or stabilitrak message on the DIC? Are your plug wires all seated? Even loose can cause some of the idle issues you describe. And a misfire will sometimes trigger "service stabilitrak" on the DIC. Some Dilectic grease in the plug boots and make sure they're all seated may be all you need. __________________ Pedders Pace Car Package, Injen CAI, Flowmaster AT, AAC Lighting, ZL1 fascia/skirts, RKSport Ram Air hood, vented fenders, painted stripes (Gary's Customz), Honor and Valor badged (Thank you, John)

11-08-2011, 06:30 PM	#21
Kwik Drives: car Join Date: Feb 2010 Location: USA Posts: 801	Hasn't thrown any codes. I will double check plug wires tomorrow. Could a loose injector cause this? Car runs like a scalded dog except when you come to a stop. Thanks to all for your input. __________________ Upgrades to suspension, brakes, motor and appearance. 482.7 RWHP- 434.2 RWT - All motor.

11-08-2011, 05:33 PM	#16
Parag Drives: 2010 camaro 2SS LS3 Join Date: Aug 2011 Location: Denver Posts: 1,334	what cam and springs did you put in? could have overreved and bent a valve. or just a broke outer spring if you have doubles. dont use brake cleaner. my mechanic uncle always uses starting fluid to check for vacuum leaks even if there is not issues. vacuum leaks are very bad on motors. brake cleaner is too acidic, will cause more damage than you want. carb cleaner is bad on the rings too.

11-08-2011, 06:37 PM	#22
garcmol Drives: 10 1LT SIM; 91 B4C sleeper Z Join Date: Aug 2009 Location: Ft. Mitchell, Alabama Posts: 7,198	I would think so. O ring bad on an injector maybe. When you did your exhaust did you put headers on? If yes, did you use a GM exhaust manifold gasket? Exhaust leaks can cause the car to miss, surge, idle funny, lots of things AND it won't throw a code. __________________ Pedders Pace Car Package, Injen CAI, Flowmaster AT, AAC Lighting, ZL1 fascia/skirts, RKSport Ram Air hood, vented fenders, painted stripes (Gary's Customz), Honor and Valor badged (Thank you, John)

11-08-2011, 08:16 PM	#23
Kwik Drives: car Join Date: Feb 2010 Location: USA Posts: 801	Running Kooks headers, off-road pipes and Magnaflow cat-backs. I can't remember what gasket we used. Headers have been on for months, so I doubt they are the problem. __________________ Upgrades to suspension, brakes, motor and appearance. 482.7 RWHP- 434.2 RWT - All motor.

11-08-2011, 08:43 PM	#24
garcmol Drives: 10 1LT SIM; 91 B4C sleeper Z Join Date: Aug 2009 Location: Ft. Mitchell, Alabama Posts: 7,198	Okay, just putting it out there. The forum member with the exhaust header/gasket leak had his on for months, drove about 2000 miles and the tick kept getting worse. His gaskets were felt and they gave way. Then began the surging, would die at idle. Something to keep in the troubleshooting book. __________________ Pedders Pace Car Package, Injen CAI, Flowmaster AT, AAC Lighting, ZL1 fascia/skirts, RKSport Ram Air hood, vented fenders, painted stripes (Gary's Customz), Honor and Valor badged (Thank you, John)

11-08-2011, 10:58 PM	#25
vroomapunk [COTW 5/12/14] Drives: 2012 CRT NF Cammed 2SS/RS For Sale Join Date: Oct 2011 Location: NOLA Posts: 6,115 View My Garage	Usually you hear a tick with an exhaust leak, or if its bigger, its an even louder/weirder noise. It very well could be a back pressure issue, this is something ive never had to deal with, though __________________

11-09-2011, 06:50 AM	#26
garcmol Drives: 10 1LT SIM; 91 B4C sleeper Z Join Date: Aug 2009 Location: Ft. Mitchell, Alabama Posts: 7,198	Here's the thread for what was believed an air leak, but the result was the exhaust manifold gasket leaking around #6 and #8. http://www.camaro5.com/forums/showth...t=engine+surge One of the highlights from that thread http://www.camaro5.com/forums/showpo...&postcount=562 And a video of the ticking __________________ Pedders Pace Car Package, Injen CAI, Flowmaster AT, AAC Lighting, ZL1 fascia/skirts, RKSport Ram Air hood, vented fenders, painted stripes (Gary's Customz), Honor and Valor badged (Thank you, John)

01-25-2012, 06:56 PM	#27
Kwik Drives: car Join Date: Feb 2010 Location: USA Posts: 801	Problem was solved by a tune at LG Motorsports. Thanks Anthony!!!

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