SOURCE: check engine light is on
most of the time it is because the gas cap isn't on tight. Make sure it is and sometimes the light will go out in an hour or so. The loose cap tells the computer that there is a vapor leak which causes the warning light to come on..My car repair man told me this and it did take care of the problem. Hope this helps..
SOURCE: Difficulty filling gas tank '06 Silverado 2500 HD 6.0 4x4 w/125K
Well come to the GM World. The filler tube to the gas tank is small and i find it to be the same on my Jimmy and my wife's Montana.
When filling, try starting off slow. Then gradually pull on the trigger more, as you fill the tank with gas. The fluid going in back's up with the air coming out. When you start off slow then pull on the trigger more you give the gas going in and air coming out time to create a path through that they can don't really interfere much with one another.
After a while you'll find a certain way (eather tilted to the left or right) to place the Gas pump nozzle in the filler tube to keep it from cutting off on you.
Good luck and hope this helps. If there is anything wrong with the EVAP. Charcoal canister, vacuum tubes or valve, your Service Engine light would go on. The ECM monitors all of that and would save a DTC in the ECM's memory to be retrieved by a technition's scanner.
SOURCE: 2001 Chevy Impala gas guage incorrect
The level sensor is bad. They are easy to do. You don't have to pull the fuel tank down. There is an acsess hole in the trunk. Look in the rear of the trunk at the rear of the seats. You will notice there is a spot in the middle that the capet comes together, Pull them apart and there is metal plate with some 10mm nuts, pull that off and your fuel pump is there, remove and replace the sensor.
Also there will the a code in the pcm. you will need to clear it to pass emissions
SOURCE: Full tank of gas and getting low fuel indicator on dash
Bad fuel level sensor. Unfortunately it is located inside the gas tank. Fairly common problem on GM's. Due to sulphur in fuel. Corrodes the sensor tabs. Expensive to have repalced and NOT a do-it-yourself project, unless you have dropped a tank before.
SOURCE: Filling my gas tank the pump keeps shutting off
Its a fact the pump will kick off on some makes especially trucks. here is a hint. When filling up insert the nozzle fully and then pull it back one inch. This way it will not stop or splash back at you which some pumps do
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