1993 Pontiac Sunbird Oil Leaks

Tiny
NOBLE ONE
  • MEMBER
  • 1993 PONTIAC SUNBIRD
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 123,000 MILES
What could be the fault if there is alot of oil in the air filter
Monday, September 15th, 2008 AT 9:00 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
HI there,

Oil in the air filter is a sign of an engine that is breathing heavy, this is caused by worn piston rings, compression by-passes the rings and over pressurizes the sump carrying oil vapor into the air cleaner visa the PVC system, the oil then collects in the air filter.

Mark (mhpautos)
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Tuesday, September 16th, 2008 AT 5:53 AM

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