Oil and Oil Filters
Check Engine Light
Buick LeSabre
Ford Expedition XLT

What does it mean when the Check Engine Light stays on the entire time while driving a 1997 Buick LeSabre and hasn't gone off after getting an oil change?

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Wiki User
2006-10-03 10:49:12

It means the computer has detected a problem with the emissions

system. The oil change had nothing to do with it. A loose gas cap

can however cause this. Tighten the gas cap 3 clicks. You will need

to have the computer scanned with an OBD2 scan tool, to retrieve

the code. This code will tell you what part is being effected. Not

what part is bad, but which one is being effected.

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