1992 GMC C1500 oil blow by

1992 GMC C1500
140,000 MILES • V8 • 2WD • AUTOMATIC
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CGAY
  • MEMBER
  • 1 POST
What would cause oil to be forced out of the oil fill and dipstick in this particular engine?
Jan 27, 2008 at 11:33 AM
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MERLIN2021
  • ✓ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic
High crankcase pressure...do a compression test, it's either bad rings, or head gasket problem..
Jan 27, 2008 at 11:37 AM
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