oil smoke coming throught heater vents.

JEEP CHEROKEE
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NWKTC2007
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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?
Jul 17, 2007 at 11:33 PM
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DPWD23
  • ✓ASE Certified Mechanic
  • 136 POSTS
  • ASE Certified Mechanic
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.
Jul 18, 2007 at 10:34 PM
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