1991 GMC S15 antifreeze in oil

1991 GMC S15
160,000 MILES • 6 CYL • 4WD • AUTOMATIC
Avatar
GRAGLINE45
  • MEMBER
  • 1 POST
what would cause antifreeze in my engine oil. Is it the intake manifold gasket?
Jan 6, 2009 at 2:49 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
UNDERTHEGALLOWS
  • MEMBER
  • 1 POST
From my experience antifreeze in your oil or vice versa would mean that you have a blown head gasket. If your intake gasket was leaking the only thing leaking would be antifreeze and it would be on top of the engine around the valve covers or the intake manifold. Hope this helps
Feb 11, 2009 at 12:01 AM