Chevrolet Uplander Problem Report
Chevrolet Uplander Check Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
If the the gas cap is not screwed back-on VERY tightly, the CHECK ENGINE light comes on & the gas guage goes crazy. Just turn it SEVERAL times when closing & that seems to do it just fine! If it does go haywire the computer takes about 24 hours to reset. - Robbicon
anytime i fill it up the fuel ,it wont start right away, - Visitor
"check gas cap" warning keeps coming on. After getting gas I retighten the cap several times. The warning light stays out for couple of miles before coming on again.....and again. Mean while the engine warning light is always on. - dash8plt
The van was purchased new and at 18,000 miles the engine light started coming on and stays on. I changed the gas cap, but light still stayed on. My husband had this vehicle as a company van. He told the dealership over and over that light stays on while it was under a fleet or lease plan, but they never corrected it. I have tried to talk to dealership, but they said they can't help me because it has too many miles. It is kind of strange that 161,000 miles of the 172,000 they serviced it, but they never took care of the problem. The dealership has records of everything even 7 complaints of engine light staying on, but like I said they never corrected it. - Visitor
light came on said check gas cap i did it was tight now check engine light on, wont start after you put gas in it dies at random points, ran computer scan said air leak in gas line - Visitor
Whenever i fill the tank with gas my check engine light comes on for about a day then goes off. I haven't had it fixed. Just a weird little quirk. Also the indicator on the gas tank goes to empty right after I fill up then slowly goes up to full by the next day. - Visitor
Gas cap light coming on, checked and tightened the cap and now the engine picture light is on...I see I am not the only one with the issue. Does anyone report any stalling or other running issues, Now I am afraid to drive the van which has been wonderful up to now. It runs fine for me with the exception of having to pump the gas occasionally after it has been started a few times during the day. - jvr4
failed inspection after reset tte engine light - Visitor
check gas cap keeps blinking and dinging - Visitor
check gas cap message went on and know the check engine light is on. - Visitor
Gas cap issue. - Visitor
Gas cap will not seal correctly all of the time and cause the check engine light to come on. - Visitor
I replaced the gas cap and still the same problem. I only had since January 16,2015 - Visitor
I've had this problem many times. Just check the cap and wait for the code to clear. - Visitor
The car just stop running.I Did not get a diagnosis test as of Oct. 25, 2014. old gas cap. and who knows what. - Phyllis Weakley
Check engine light on and it notifies me to check gas cap. I had to replace gas cap every couple of months in order to keep the check engine light off, and to be able to pass the emissions test. - Visitor
engine light on changed gas cap didn't help - Visitor
replaced gas cap. Still on. Has been on for 5 months now and mechanic is working on it as we speak. BUT they cant find it with a smoke test. Its been in there days now. Inspection will fail if not fixed. - Visitor
Everytime I fill up with gas low fuel comes on and then the check engine light comes on. I drive it to work and back. Take the cap off and ususally the next time i start it the check engine light goes off. - Visitor
Check engine light comes on due to gas cap not sealing. - Visitor
check engine light is on when the car is cold it is rough starting have to keep my foot on the...
When I tried to start to warm up in the morning it wont start. All the lights work and it sound...
Check engine light is on no codes but it won't start. Already replaced fuel pump, starter and...
When I come to a braking or press on the gas to pull off the car on the right side trembles and...
Corrosion at the fuel tank to body harness may cause the Check Engine Light to illuminate or a...