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Sludge in coolant

Tiny
SONOFSAM
  • MEMBER
  • 1995 PONTIAC TRANS AM
  • 5.7L
  • V8
  • RWD
  • AUTOMATIC
  • 100,000 MILES
There is sludge in the coolant.
Tuesday, June 7th, 2016 AT 11:39 AM

4 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If there is sludge in your coolant there are a couple things to check here. Try to figure out if it is engine oil or transmission fluid. It can be either, if it is transmission fluid then it is a broken cooler line in radiator if not have it pressure checked for a blown head gasket or intake gasket. If you see a sludgy/whitish buildup under oil cap then you probably have a head gasket problem or crack in head/engine block. More likely a head gasket however.
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Tuesday, June 7th, 2016 AT 12:00 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
It also could be Dexcool gone bad. That turns into a red clay.
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Tuesday, June 7th, 2016 AT 2:50 PM
Tiny
SONOFSAM
  • MEMBER
  • 7 POSTS
The head gaskets were replace two years ago, I am wondering if they need to be re-torqued
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Tuesday, June 7th, 2016 AT 9:59 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I kind of doubt it, that should have been done when gaskets were replaced. Pressure check it first.
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Wednesday, June 8th, 2016 AT 6:13 AM

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