Question about 2003 Buick Century

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Service engine light

My service engine light comes on shortly after refueling, then in a couple days it goes off

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  • tchurch326 Dec 11, 2008

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If you fule while the engine is running or have a poor gas cap seal the problem may be logged in the bank as an error. chevy revised the ecm for that reason on the astrovan. go to autozone and have them scan the codes.

Posted on Dec 08, 2008


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Service light comes on wilst driving with slight loss of power, but on a restart the light goes out and it seams ok for a couple of days but then it happens again. this is a 1400 diesel corsa van 2010

I have heard of this before on Vauxhall models. As the routine maintenance point is reached the service light will illuminate and performance will be reduced to protect the unserviced engine.

Once the service has been carried out the dealer will reset the service interval computer using diagnostic equipment and normality should be restored. That seems to be the theory...

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Service engine soon light was on and now went off? what is the problem?

Often times it is a loose gas cap. Have you refueled between the light going on and going off? You probably fixed your problem.

Mar 02, 2015 | 2004 Chrysler Sebring

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Check engine. Light

The check engine light is commonly activated by a loose gas cap, regardless of vehicle make or model. Having said that, it could also be a more significant issue. You may want to err on the side of caution and schedule a maintenance.

If it's come on recently (especially if you noticed it shortly after refueling) and you don't notice any difference in the way the vehicle has been starting, handling, or otherwise operating, you can try to unscrew the gas cap, screw it back on based on the vehicle user manual or instructions printed directly on the cap (i.e. turn until three clicks, turn until hand tight), and drive the vehicle around for a few days. The light usually won't deactivate immediately after correcting the problem. You'll have to drive it around for a couple of days to a week in order for the check engine light to go away.

Apr 18, 2014 | 2007 Chevrolet Cobalt Coupe

1 Answer

Service engine soon light comes on

Have you checked the gas cap to see if it is on tight? If you purchased gas in the last couple days it might be the solution. Tighten the cap and drive a couple days to see if the light goes off. If the cap is loose, you might need a new cap.

Oct 14, 2010 | 2003 Chevrolet Blazer

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We just bought a 05 chevy equinox 2 days ago. Last night the "service engine"light came on. My husband went to check the oil and cant find the dip stick.

If you don't tighten the gas cap (make it click at least four times) when refueling it will turn the check engin light on. The dip stick is located in the front of the engine and is a yellow loop.

Apr 05, 2010 | 2005 Chevrolet Equinox

1 Answer

The Service Engine Soon goes on and off

have the vehicle scanned for "history" codes and let me know what they find. once you have these diagnostic codes in hand it is alot to decide which circuit to chase or part to replace.

Jan 28, 2010 | 2001 Nissan Sentra

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Check engine light on. Car has 62K miles on it. Oil change not due for another 2 wks / 500 miles.

the light is reminding you that you need to service engine soon it doesnt mean right now

Oct 26, 2009 | 2006 Chevrolet Cobalt

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