Question about 1997 Buick LeSabre
I know of 3 ways to clear it:
1. Disconect the battery
2. Use a computer(Autozone)
3. If the problem is really gone, it will go away on it's own after so many key cycles (used to be about 50 on my dodges). It usually takes about a week on my Buicks.
Posted on Oct 24, 2013
Should not need a new cap ? there is a vent in the tank that is controlled by the engine being started. underneath the back of the car there is a pipe that comes from the top of the petrol/diesel tank follow the pipe to the engine bay looking at the pipe looking for damage. in the engine bay it will go to a vacuum pipe with a valve on it. that would be the fault has 2 wire on it to say when it is open. on some models its electric controlled and have 4 wires. some times the part were it vents out can get blocked and the ecu will read it is closed. it is mostly down to dirt and grim blocking it up just will need a clean out.
Posted on Oct 15, 2013
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Posted on Jan 02, 2017
Try putting somw SEAFOAM into your tank. It either your O2-sensor, or EGR-valve. Alot of the time, SEAFOAM will clean these sensor up????
Posted on Feb 07, 2009
It isn't going to hurt anything unless your fuel tank is leaking fuel. In which case you should get it fixed.
It could be a fuel cap and if it seems loose or worn you should replace it anyway. It may cure the problem.
It may take a while for the light to turn off though, as it will need to run the test and pass before it goes out.
If you need more help, leave a message and I will return to assist.
Posted on Jan 24, 2010
Testimonial: "If it is my fuel tank leaking, how would I know. Would I smell gas?"
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