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
158,955

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:

Related Questions

  • Chevy 6.0 low oil pressure 2 Answers

    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 oi...

    2003 Chevrolet Silverado 1500HD LT Crew Cab 4WD

    -

    Maintenance & Repair

  • Oil pressure sensor 1 Answer

    Bad oil pressure sensor does the type of oil make a difference

    2006 Chevrolet Silverado 1500HD 2LT Crew Cab 4WD

    -

    Maintenance & Repair

  • OIL PRESSURE READS WAY PAST MAX 1 Answer

    Oil pressure on MAX when the truck off off,when I start my truck,the oil pressure shoots way past MAX, my engone is running great..no noises,lots of power&all my other gauges are working perfect,P...

    2005 Chevrolet Silverado 1500HD LT Crew Cab 4WD

    -

    Maintenance & Repair

  • 2001 Chevy Silverado not shifting out of first gear 1 Answer

    I cannot get my Chevy Silverado 2001 to shift out of first gear

    2001 Chevrolet Silverado 1500HD LS Crew Cab 4WD

    -

    Maintenance & Repair

  • 02 6.0 vortec 3 Answers

    I have an 02 1500HD with a 6.0 in it. I have replaced a bunch of atuff on this truck from brake lines to pads and rotors to calipers and oil pan gasket and of course the ever famous water pump. H...

    2002 Chevrolet Silverado 1500HD LS Crew Cab 4WD

    -

    Maintenance & Repair

Silverado 1500HD

Looking for a Used Silverado 1500HD in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Chevrolet Silverado 1500HD Questions

CarGurus Experts

  • #1
    madatmysuburban
    Reputation
    720
  • #2
    charlandk
    Reputation
    680
  • #3
    Richard Schroer
    Reputation
    500
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
212 Great Deals out of 5,937 listings starting at $3,995
Used GMC Sierra 1500
131 Great Deals out of 6,882 listings starting at $3,975
Used Chevrolet Silverado 2500HD
17 Great Deals out of 1,163 listings starting at $8,999
Used Ford F-150
304 Great Deals out of 15,351 listings starting at $1,954
Used Chevrolet Silverado 2500
2 listings starting at $12,500
Used Chevrolet Tahoe
15 Great Deals out of 714 listings starting at $5,995
Used GMC Sierra 2500HD
17 Great Deals out of 1,666 listings starting at $12,900
Used Dodge RAM 1500
7 Great Deals out of 80 listings starting at $4,000
Used Toyota Tacoma
53 Great Deals out of 1,012 listings starting at $8,708
Used Toyota Tundra
45 Great Deals out of 1,130 listings starting at $5,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.