2008 GMC Envoy "escape gas cap light" Questions

...There is air escaping from the gas tank. Often a problem with the gas cap, try tightening the cap, reset the code and see if it comes back on. Essentially it is testing for cracks in the

escape easy fuel light stays on There's is no gas cap. they have this Easy Fuel system where you only close the flap. Now the gas cap light has come on and ....... there is no gas cap. What is

...gas cap light dasnt work while the cap is of the gas cap light is only to come on if the ECM detects a large leak on the EVAP system. this usually doesn't occur until the third cold start if the ...

...gas cap Changed gas cap .reset computer.light is still on Then the Evap System leak wasn't the gas cap Pays to just diagnose the system first & replace parts when you find the real problem Need ...

...gas cap lights are on, what do I need to do ? Make sure the gas cap is on tight. Disconnect the battery for a couple mins, to turn off check light. If it comes back,you need to check for codes,by ...

gas cap. yes it can be any part of the fuel system that is allowing air to escape, a way to find a air leak is to apply shop air to the fill neck while a helper listens under the car for air escaping,

...escape It has become difficult to fill my gas tank,the gas nozzles wants to shut -off ,as if the tank is full,when it is not,my engine light is on ,and after I fill the tank 3/4 of the way.I start my ...

...gas cap but they wouldn't reset it so i drove for a few days went to a different auto zone and they reset it and then today it came back on What is going on? Your problem is in the evaporative ...

...to a loose or bad fuel/gas cap. I'd confirm it's tight (a couple 'clicks') and not leaking - ensure you note air escaping when the cap is removed, which is normal. TD O2 sensor bank 1 sensor 3. ...

escape. EVAP small leak. What do you experts out there suggest I try ?? Thanks I pulled this code with a scanner but I'm not sure where to start the troubleshooting process. Is it possible the