HELLO

1989 GMC S15

Tiny

Anonymous

March, 3, 2013 AT 2:51 PM

Hello. My truck has the 4.3L v6 engine. Yesterday it started smoking excessively (white smoke) when I cranked it, but it went away once I started driving it. Also, when I remove my radiator cap, it looks like red mud. It has been like this for some time now, but I have never overheated or had coolant in my oil. I replaced the radiator and hoses recently and the red mud color came back. I am also getting fault code 44. O2 sensor is farly new as well. Could this be a faulty intake gasket?

FOUND 1858 RELATED QUESTIONS

1 Answer

Tiny

ASEMaster6371

March, 3, 2013 AT 3:15 PM

The white smoke is burning coolant. It could be the intake or a head gasket. A leak down test will confirm.

Roy

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