Question about 2001 Cadillac Seville

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After filling the gas tank on my 2001 Cadillac Seville STS, the "check engine soon" light came on. I took the gas cap off and re-tightened it. The light is still on.

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The cap may not be sealing well enough,try some oil on the sealing rubber ring,look for a spot in the filler neck,that may be uneven for a good seal.

Posted on Sep 09, 2010

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The fact that the light came on has nothing to do with filling your tank. The light is pre-programmed to come on following a combination of time, mileage and on some makes the usage profile, and it's telling you to get the engine serviced soon. After the service, the vehicle will need to be connected to a suitably-equipped computer to have the service light indicator reset. If you check in your Cadillac owners' handbook, the service section will give you details of which service items need to be attended to at the age and mileage of your vehicle. If it's just a simple oil and filters service then you may decide that you can do this yourself easily and save money. If there's more to the job, you can decide what you're comfortable doing yourself and then get a garage to do the rest: the less you leave to the garage, the lower the bill.

Ignoring the light will simply mean that your engine eventually has a breakdown which can be extremely expensive.

Posted on Sep 09, 2010

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