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
159,075

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 1 nationwide Silverado 1500HD 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
195 Great Deals out of 5,967 listings starting at $2,975
Used GMC Sierra 1500
143 Great Deals out of 7,206 listings starting at $3,950
Used Chevrolet Silverado 2500HD
18 Great Deals out of 1,279 listings starting at $9,990
Used Ford F-150
321 Great Deals out of 15,103 listings starting at $1,712
Used Toyota Tundra
34 Great Deals out of 1,190 listings starting at $8,500
Used Chevrolet Tahoe
20 Great Deals out of 904 listings starting at $11,900
Used Dodge RAM 1500
4 Great Deals out of 73 listings starting at $4,000
Used GMC Yukon
19 Great Deals out of 915 listings starting at $1,225
Used GMC Sierra 2500HD
13 Great Deals out of 1,617 listings starting at $10,800
Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $9,995
Used Chevrolet Colorado
25 Great Deals out of 1,496 listings starting at $6,800
Used Chevrolet Silverado 2500
2 listings starting at $12,500

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.