1999 Chevy S-10 motor oil in coolant

S10NUT

MEMBER
1999 CHEVROLET S-10
4 CYL
2WD
AUTOMATIC
120,000 MILES

Why am I getting motor oil in my radiator?

Friday, March 20th, 2009 AT 9:39 PM

1 Reply

BLACKOP555

MECHANIC
10,371 POSTS

Sounds to me like you have a bad headgasket, or a cracked block or head. Or if vehicle is equipped with oil cooler, that may be bad.

Perform a compression test to tell what it is.

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1 Reply

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