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What would cause oil in the throttle body after.

Tiny
ANONYMOUS
  • MEMBER
  • 1998 BUICK LESABRE
  • 58,767 MILES
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
Thursday, February 7th, 2013 AT 1:36 AM

1 Reply

Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
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.
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Thursday, February 7th, 2013 AT 1:49 AM

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