1996 Pontiac Grand Prix coolant

1996 PONTIAC GRAND PRIX
149,000 MILES • 4 CYL • 2WD • AUTOMATIC
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SARGE07
  • MEMBER
  • 1 POST
The coolant is mixing with the oil. What needs replaced?
Jan 5, 2010 at 9:40 AM
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MMPRINCE4000
  • ✓ASE Certified Mechanic
  • 8,548 POSTS
  • ASE Certified Mechanic
If you have coolant in oil, it is either the headgasket or intake manifold gasket.

Perform a compression test to check the headgasket.

Get this repaired ASAP and do not drive the car, coolant in oil will strip the oil film off the main bearings and can cause severe engine damage.
Jan 6, 2010 at 6:23 AM
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