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1997 Cadillac Catera oil in coolant

Tiny
CATERA_97_08
  • MEMBER
  • 1997 CADILLAC CATERA
Engine Cooling problem
1997 Cadillac Catera 6 cyl Two Wheel Drive Automatic

i just bought a catera from a friend which told me that he was told it had a blown head gasket b/c it is gettin oil in the coolant and it runs hot after a short period of time to be honest I didnt even make it home befor it got hot I had to have it towed and I was wondering if the oil cooler is the only reason that it would be gettin oil in the coolant b/c none is gettin in the engine
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Saturday, November 15th, 2008 AT 10:13 PM

2 Replies

Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
If oil is in the coolant then coolant is in the engine. You may not detect it but it's there. The oil cooler is a coil that runs through the radiator core. If it fails then oil and coolant will mix.
A blown head gasket will also mix coolant and oil, depending on where it fails. However, the engine will most likely run very rough, especially when it warms up. Do a compression test to determine if the head gasket indeed failed.
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Sunday, November 16th, 2008 AT 2:50 AM
Tiny
MISTERFIXIT03
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  • 1 POST
Most of the time oil in coolant is the oil cooler it is located between the heads under the intake if there is a lot of oil in the coolant that will also make it over heat.
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Saturday, December 27th, 2008 AT 8:54 PM

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