Oil Pressure

Asked by Jan 12, 2017 at 03:41 AM about the 1999 Chevrolet Silverado 2500HD LS Extended Cab LB RWD

Question type: Maintenance & Repair

I have a 99 Silverado 2500 LS 6.0L. I was
driving down the road and oil pressure
went to 0. I  immediately pulled over and
the truck started making loud noise. Lifter
noise(loudest on passenger side closest to
the firewall)knocking noise.(goes away if
you increase rpms) checked for leaks etc.
and nothing was leaking. I had a buddy
bring me a oil sending unit. Replaced it
and nothing changed(there was no "2inch"
screen in sensor hole). Towed it home
changed oil(always mobile 1 high mileage
FS) and oil filter(K&N) same thing. Any
suggestions before I break this engine
down?

1 Answer

87,315

Start by checking the oil pressure with a mechanical gauge. If the pressure is showing low, I would drop the oil pan and look to see what kind of crap is in there to determine weather or not to put in a new High Volume Oil Pump. You would want to check the compression of the engine also, pull the valve covers off and look for any damage, sludge and crap again. You just have to determine the condition of the engine in making a decision on what you want to do. A new High Volume Oil Pump would get you a few more miles out of her if it is worth it.

1 people found this helpful.

Your Answer:

Chevrolet Silverado 2500HD Experts

  • #1
    Steven Loeffler
    Reputation
    570
  • #2
    Reelin68
    Reputation
    430
  • #3
    piocon
    Reputation
    380
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,821 Great Deals out of 155,893 listings starting at $1,799
Used Ford F-250 Super Duty
433 Great Deals out of 36,355 listings starting at $1,999
Used Dodge Ram 2500
147 Great Deals out of 4,576 listings starting at $2,990
Used GMC Sierra 1500
702 Great Deals out of 56,641 listings starting at $1,500
Used Ford F-350 Super Duty
322 Great Deals out of 21,094 listings starting at $3,500
Used Ford F-150
2,281 Great Deals out of 188,639 listings starting at $1,200
Used Chevrolet Silverado 2500
3 Great Deals out of 116 listings starting at $4,988
Used Toyota Tundra
473 Great Deals out of 37,207 listings starting at $2,499

Used Cars For Sale

2018 Chevrolet Silverado 2500HD For Sale
8 Great Deals out of 13,946 listings starting at $26,473
2017 Chevrolet Silverado 2500HD For Sale
23 Great Deals out of 1,187 listings starting at $28,495
2016 Chevrolet Silverado 2500HD For Sale
37 Great Deals out of 1,396 listings starting at $22,900
2015 Chevrolet Silverado 2500HD For Sale
40 Great Deals out of 1,915 listings starting at $12,000
2014 Chevrolet Silverado 2500HD For Sale
4 Great Deals out of 510 listings starting at $9,950

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.