i have 1999 5.3 L. silverado.at startup oil pressure at 40 psi.when temp.gets to normal pressure drops to around 20psi. lifters start to tap. i pull over and turn engine off. 5 min. later start engin

Asked by May 05, 2014 at 12:02 PM about the 1999 Chevrolet Silverado 1500

Question type: Maintenance & Repair

1 Answer

102,235

I had a couple of engines do this too me also, 1 had a bad oil pump, the other had not been serviced properly and crud was plugging up the oil passages to the top end, and the 3rd was the cam bearings excessive clearance. Yours sounds like an oil pump failure.

Your Answer

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    2,660
  • #2
    Rowefast
    Reputation
    2,000
  • #3
    Silverado_owner_2006
    Reputation
    1,710
View All

Related Models For Sale

Used GMC Sierra 1500
1,040 Great Deals out of 66,427 listings starting at $2,495
Used Ford F-150
2,609 Great Deals out of 198,113 listings starting at $1,300
Used Dodge Ram 1500
380 Great Deals out of 10,831 listings starting at $1,500
Used Toyota Tundra
483 Great Deals out of 33,804 listings starting at $2,000
Used Toyota Tacoma
591 Great Deals out of 44,877 listings starting at $1,790
Used Chevrolet Tahoe
744 Great Deals out of 41,778 listings starting at $1,995
Used Ford F-250 Super Duty
340 Great Deals out of 45,694 listings starting at $1,700
Used Chevrolet Camaro
453 Great Deals out of 30,878 listings starting at $2,495
Used Chevrolet Silverado 2500
8 Great Deals out of 220 listings starting at $2,888

Used Cars For Sale

2018 Chevrolet Silverado 1500 For Sale
3 Great Deals out of 52,417 listings starting at $23,382
2017 Chevrolet Silverado 1500 For Sale
177 Great Deals out of 55,191 listings starting at $17,899
2016 Chevrolet Silverado 1500 For Sale
231 Great Deals out of 6,968 listings starting at $17,202
2015 Chevrolet Silverado 1500 For Sale
374 Great Deals out of 11,861 listings starting at $12,950
2014 Chevrolet Silverado 1500 For Sale
421 Great Deals out of 13,209 listings starting at $9,900

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.