1988 GMC C1500 coolant in the oil

Tiny
THEFOOSER
  • MEMBER
  • 1988 GMC C1500
  • 6 CYL
  • 2WD
  • MANUAL
  • 160,000 MILES
What can cause coolant to get into the oil?
Sunday, October 4th, 2009 AT 9:12 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Blown head gasket, perform a compression test.
Cracked head do same as above
cracked block internal water jacket.
https://www.2carpros.com/dia/how_to_check_compression.htm
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Sunday, October 4th, 2009 AT 9:44 AM

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