1989 Gmc S15 Hello Truck 4 3l V6 Engine Yesterday Started Smoking Excessively

1989 GMC S15
175,000 MILES
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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?
Mar 3, 2013 at 6:51 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
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the white smoke is burning coolant. it could be the intake or a head gasket. a leak down test will confirm.

Roy
Mar 3, 2013 at 7:15 AM
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