cracked head or blown head gasket

Asked by jarle Nov 06, 2017 at 04:17 PM about the 1999 Chevrolet Suburban K1500 LT 4WD

Question type: Maintenance & Repair

hi, i have a chevy 6,5 tdi 99mod

white smoke comes out of exhaust , and on idle the smoke seem to have a oil
mist as well. No water in oil or oil in water, neither bubbles in coolent system.

1 Answer
157,455

Bob answered 6 years ago

Impossible to tell the difference between a cracked block, cracked cylinder head or a bad head gasket without disassembly and inspection. Coolant will NOT always show up in the oil when a head gasket leaks. It depends on exactly where the gasket is blown and how large the hole is as to where the coolant or combustion gasses go..

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