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1989 Buick LeSabre - Page 4 Questions & Answers
Check engin light
Go to AUTOZONE or other one that will scan your vehicle and give you a trouble code,you can post it here to find out what is wrong.
Fuel pump
Not on a Buick. You have to drop the tank to get to the pump.
I have a 1998 Buick Lesabre that keeps losing antifreeze.
Buick 3.8's are notorious for intake manifold leaks. If you are sure you are not leaking externally (look under the alternator and on the top of the transmission), it could be an intake manifold leak. I've replaced mine...I didn't think it was too hard a job for an amateur.
It could also be a head gasket, but the intake leaks are much more common.
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