Re: How long does it take for the gascap message to turn...
I think after about 50 cranks. My wife's buick was taking forever so I just disconnected the batt. for about 20 min. that reset it. You can also reset it with a scanner
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The gas cap is either not on or improperly installed, remove the cap and reinstall it until it clicks when tightening. Read your owner's manual, the info is in there. If the light still stays on replace the gas cap.
The "gascap" warning tells you that there is a leak somewhere in the fuel tank, fill neck, or gas cap that is preventing vacuum from developing in the tank. If you are certain that your gas cap is good, the second most likely culprit is the fuel fill neck gasket was compromised during the accident, or that there was unnoticed damage to the gas tank which is not allowing a vacuum to develop inside the tank.
Start by rebooting the as explained regkyl.
If issue returns then get a new gascap and reboot again. The seal on your cap is maybe worn out.
If issue still return then you'll have no choice to go and have the sensor checked and hope the problem is not with the cluster...
basically what you need to do is to check the oil gascap see if it has any type of dirt or anything under, if so just clean it off. the gascap should be on top of engine where it says OIL. or the gas cap could be rusted and may have to be replaced
the check engine light is most likely evap system large leak which is what causes the gas cap light it probably needs a nvld pump or it has a leaking evap tube under th vehicle.
You may have a faulty gas cap. If you are tightening the cap down securely the light will go off after the car is driven about 40 miles. I suggest installing a new gas cap which should cost about $15 at your local auto parts store. *** Please rate me on this answer.***
I had this similar problem but gascap and engine light on. I changed out the gas cap cleared codes and both were back o. Went to the dealer he insisted it was the after market gascap changed in and cleared the codes. Before I even left the lot they were both back on. Finally they found the problem they had to change out some kind of pump and canister and it fixed the problem.
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