2007 GMC Envoy Denali "check fuel cap light" Questions

...the service engine light has come on AGAIN It came on just after I get the warning bell to tighten fuel cap What gives could be a bad fuel cap gasket or a leak in the evap system, get the cap ...

ya -they're problem-prone. BUT with the "check gauges" light coming on, my bet is you're experiencing the warning signs of imminent fuel pump failure. gas gauge been bouncing or not reading accurately

A check engine light can be any combination of about 300 codes. Some are simple, like a leaking fuel cap and some get very involved. Without the actual code(s) there is no telling why the light is on

...check engine light comes on. Have tried removing the gas cap and re-inserting it. After we drive it for awhile, everything goes back to normal. This is a safety feature that the vehicle brings. You ...

...FUEL GUAGE PROBLEMS--- GAS GAUGE DOES NOT REGISTER ON FILL UP--- CHECK ENGINE LIGHT COMES ON WHEN YOU FILL UP -----THEN GOES OUT AFTER 1ST. 20 TO 40 MILES. BEN GOING ON FOR LONG TIME ONLY WORRY WHEN ...

...fuel fill cap either loose or the seal or check valve bad in the cap. There are also some hose and lines from the fuel tank to the charcoal canister that can be the problem. But most common is fuel ...

...on, Take your pick., You need to get the code to proceed. Or check the fuel cap for cracks on the seal or if its on loose. Reinstall it and the light should go off in acople days if that was the

...back on and its the same code! Also after I refuel the vehicle does not want to start unless I pump the accelerater pedel then it starts! Check for fuel leeks but suspect a problem with fuel pump

...fuel system , which is pressurized, is working ok. If it doesn't have suction, it may cause your check engine light on. unless it's causing problems, leave er be good luck hope this helps you. Cheers ...

Check engine light remains on, i had gas cap replaced months ago and the light is still on. Fuel gauge stays below the empty reading, even with a full tank of gas. On highway the rpm seems to stay on ...