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1998 Buick Lesabre Repair Question


Topics covered: Body, Throttle body, Hood.
Mileage: 58,767 miles.

Asked on February 7, 2013

Buick Lesabre Body Problem

What would cause oil in the throttle body after the car dies running 55mph at 1100 rpm and wont crank over gf drives like a grandma and theres no overheating issues
Avatar Asked by (pending member)

Answer

Replied on February 7, 2013

You might have a problem with the crankcase breather or PCV system. It uses vacuum to relieve crancase pressure and if the PCV valve is stuck open or there is some other issue allowing oil into the throttle body which would be a restrictor that has failed it would suck oil into the TB.
Check the PCV system as it is diagramed under the hood of your car.

Tiny Answered by DrCranknWrench (expert)
3,292 answers provided