Oil smoke coming throught heater vents.

Tiny
NWKTC2007
  • MEMBER
  • JEEP CHEROKEE
1995 jeep cherokee 2.5 liter 160k. About 80 % of the time when I drive a white oil smelling smoke comes through my heater vents. It only comes out when accelerating quickly, its a small amount but its enough to notice. Obviously there is something wrong. Do you have any ideas what it might be? And any idea on how to fix it?
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Tuesday, July 17th, 2007 AT 11:33 PM

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Tiny
DPWD23
  • MECHANIC
  • 136 POSTS
Probably a crack in the heater core. It's likely what you are seeing/smelling is coolant.

Do a leak down test on the cooling system. If it leaks down, you need to physically inspect the heater core.
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Wednesday, July 18th, 2007 AT 10:34 PM

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