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1999 Chevy Suburban antifreeze in oil

Tiny
FSP
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
Engine overheated - radiator was replaced
antifreeze is in the oil.
compression is between 170-190 in all cylinders

where do I go from here?
Tuesday, April 29th, 2008 AT 4:03 PM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
This would indicate a cracked water jacket, or the water pump itself may have leaked into the engine. Anti freeze destroys bearings very quickly.
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Tuesday, April 29th, 2008 AT 4:08 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Check head gasket
coolant mix with oil indication of head gasket failure
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Tuesday, April 29th, 2008 AT 4:09 PM

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