Chevy 6.0 low oil pressure

Asked by Guru5GCBB Feb 14, 2018 at 10:34 PM about the 2003 Chevrolet Silverado 1500HD LT Crew Cab 4WD

Question type: Maintenance & Repair

I have a 2003 Chevy 1500 HD 6.0 with low oil
pressure. Replaced the sending unit, oil pump, and
pickup tube O ring. Still reading low oil pressure. It
sits around 20-25 psi at all times. Changed oil when
sending unit was replaced, oil was fine. It sat for
about 3 weeks because the sending unit didn’t
work. When we drained the oil for the oil pump my
oil was milky from antifreeze. Any solution will help

2 Answers
157,475

Bob answered 6 years ago

Milky oil is usually a sign of a bad head gasket, cracked cylinder head or cracked engine block. On some engines the intake manifold can leak coolant into the oil. A complete teardown and overhaul may be in your future.

Mark helpful

Your Answer:

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