gas cap - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

tanur420 · 01-16-2015, 11:51 PM

So I noticed my check engine light coming on and going back off randomly. Scanned it, gave a few codes I cant remember atm but I tracked it down to a specific chain of events. When I fill up my gas tank, it usually goes off.and when I get around half it will come back on. Like something is making the cap loosen. Any ideas on what to do with an im thinking defective gas cap?
Edit- forgot that another thing that makes me look at the cap, is when it comes on sometimes I can make it go away by unscrewing and reinserting the cap and giving a few extra clicks.

TheHorse13 · 01-17-2015, 07:25 AM

It sounds like you answered your own question. Go buy another gas cap.

tanur420 · 01-17-2015, 07:10 PM

Was wondering if there was a way to fix the old one was the main thing I suppose. Like replacing a gasket or something

satxrider · 01-18-2015, 09:28 AM

Not worth trying to disassemble and to try and repair. The replacement is cheap enough to just replace. Aftermarket version available for $15 and OE versions under $20.

http://www.gmpartsdirect.co/chevrole..._name=fuel-cap

J-Crazy Camaro · 01-22-2015, 11:11 AM

yea go to the dealership and order a new cap

TommyTheCat · 01-22-2015, 11:48 AM

Is the gasket hard or ripped? If not, it's probably not the problem anyway. Hopefully it is, since it's the cheapest, but the quality on my cap seems ok and I doubt it would be bad so soon.

bannonm · 01-22-2015, 11:50 AM

Go with the OEM cap. Most aftermarket caps don't have the tether to keep the cap attached to the car. Just keeps you from losing your cap when filling up.

Tenring · 01-23-2015, 05:20 PM

My cap is very sensitive, I need to make sure it is on tight and even then seems to have loosened up a few times.

bbnova · 01-29-2015, 12:48 PM

When I had my 2012 LS, I was experiencing the same thing only mine would stall or try to stall just after filling up some times. Turns out the float in the gas tank wasn't working correctly allowing me to overfill the tank sending raw fuel into the line that checks for leaks sending a loose gas cap light. When the system checked for leaks, it had fuel in that line and causing the gas cap light to come on. The work was done at Bill Fox Chevy in Rochester Hills Michigan if you or your dealer can't get it figured out.

01-16-2015, 11:51 PM	#1
tanur420 Drives: 2011 Camaro SS Join Date: Apr 2012 Location: Jacksonville FL Posts: 348	gas cap So I noticed my check engine light coming on and going back off randomly. Scanned it, gave a few codes I cant remember atm but I tracked it down to a specific chain of events. When I fill up my gas tank, it usually goes off.and when I get around half it will come back on. Like something is making the cap loosen. Any ideas on what to do with an im thinking defective gas cap? Edit- forgot that another thing that makes me look at the cap, is when it comes on sometimes I can make it go away by unscrewing and reinserting the cap and giving a few extra clicks. __________________

01-17-2015, 07:10 PM	#3
tanur420 Drives: 2011 Camaro SS Join Date: Apr 2012 Location: Jacksonville FL Posts: 348	Was wondering if there was a way to fix the old one was the main thing I suppose. Like replacing a gasket or something __________________

01-18-2015, 09:28 AM	#4
satxrider Bad 45th Drives: 2012 45th Anniversay Edition SS Join Date: Apr 2014 Location: San Antonio Posts: 548	Not worth trying to disassemble and to try and repair. The replacement is cheap enough to just replace. Aftermarket version available for $15 and OE versions under $20. http://www.gmpartsdirect.co/chevrole..._name=fuel-cap __________________ - Carl 2012 45th Anniversary SS - LS3 Magnuson TVS 2300 Supercharger / Alky Meth Injection / Lingenfelter GT12 Cam / Kooks LT Headers, 3 inch exhaust & QTP electric cut outs / Monster LT1-S Twin Disc Clutch / MGW flat blade short throw shifter / Haltech CAI / VMax Throttle Body / DSS Stage 3 axles/ BMR Trailing Arms, Toe Rods, Suspension Bushing and 1" lowering springs / Taylor 8MM Plug Wires / Tuned by Henderson Performance Technologies / EBC dimpled and sloted rotors / G2 Painted Calipers / GM Tower Strut Brace / ZL1 Factory Rep Wheels

01-22-2015, 11:11 AM	#5
J-Crazy Camaro Drives: Red V8 Join Date: Jul 2014 Location: Georgia Posts: 325	yea go to the dealership and order a new cap __________________ Live Hard, Drive Fast, Die Free. 'Merica

01-22-2015, 11:50 AM	#7
bannonm Drives: 2011 2SS/RS M6 VR Join Date: Aug 2011 Location: Chicagoland Posts: 1,536	Go with the OEM cap. Most aftermarket caps don't have the tether to keep the cap attached to the car. Just keeps you from losing your cap when filling up. __________________

01-17-2015, 07:25 AM	#2
TheHorse13 Drives: 2011 Black SS M6 Join Date: Oct 2010 Location: Harpers Ferry, WV Posts: 1,116	It sounds like you answered your own question. Go buy another gas cap.

01-22-2015, 11:48 AM	#6
TommyTheCat SHKE BKE Drives: 2013 Camaro Join Date: May 2014 Location: SoCal Posts: 3,105	Is the gasket hard or ripped? If not, it's probably not the problem anyway. Hopefully it is, since it's the cheapest, but the quality on my cap seems ok and I doubt it would be bad so soon.

01-23-2015, 05:20 PM	#8
Tenring Drives: 2015 SS/RS M6 Commemorative Join Date: Apr 2014 Location: Arizona Posts: 2,197	My cap is very sensitive, I need to make sure it is on tight and even then seems to have loosened up a few times.

01-29-2015, 12:48 PM	#9
bbnova Drives: 2012 2LS Join Date: Feb 2012 Location: Rochester Hills, MI Posts: 65	When I had my 2012 LS, I was experiencing the same thing only mine would stall or try to stall just after filling up some times. Turns out the float in the gas tank wasn't working correctly allowing me to overfill the tank sending raw fuel into the line that checks for leaks sending a loose gas cap light. When the system checked for leaks, it had fuel in that line and causing the gas cap light to come on. The work was done at Bill Fox Chevy in Rochester Hills Michigan if you or your dealer can't get it figured out.