Low oil pressure at start

Asked by Jun 07, 2016 at 04:54 AM about the 2000 Chevrolet Silverado 1500 LS Ext Cab Short Bed 2WD

Question type: Maintenance & Repair

Live in California have 320,000 miles on truck am
getting 20 lbs at cold start looking for a reason.

2 Answers

13,145

320,000 miles of wear all tolerances have enlarged, in addtion the oil pump has worn that's why only 20Lbs of PSI.

1 of 1 people found this helpful.
101,875

Does it stay at 20 lbs or does it drop as it warms up? If it drops the engine has excessive clearances in the bearings, if it doesn't drop then the possible cause would be a stuck oil pump bypass valve, it is stuck in the bypass position. HTH

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
990 Great Deals out of 66,609 listings starting at $2,495
Used Ford F-150
2,544 Great Deals out of 193,098 listings starting at $799
Used Chevrolet Silverado 2500HD
292 Great Deals out of 29,853 listings starting at $2,795
Used Dodge Ram 1500
380 Great Deals out of 10,772 listings starting at $1,500
Used Toyota Tundra
475 Great Deals out of 33,022 listings starting at $2,900
Used Toyota Tacoma
575 Great Deals out of 43,801 listings starting at $2,200
Used Chevrolet Tahoe
733 Great Deals out of 41,251 listings starting at $1,995
Used Ford F-250 Super Duty
313 Great Deals out of 44,955 listings starting at $1,700
Used Chevrolet Camaro
428 Great Deals out of 30,565 listings starting at $2,495
Used Chevrolet Silverado 1500HD
7 Great Deals out of 261 listings starting at $2,695
Used Chevrolet Silverado 2500
5 Great Deals out of 218 listings starting at $2,888
Used Ford Mustang
618 Great Deals out of 36,130 listings starting at $1,800

Used Cars For Sale

2018 Chevrolet Silverado 1500 For Sale
48,705 listings starting at $22,310
2017 Chevrolet Silverado 1500 For Sale
202 Great Deals out of 57,886 listings starting at $17,149
2016 Chevrolet Silverado 1500 For Sale
223 Great Deals out of 6,909 listings starting at $17,202
2015 Chevrolet Silverado 1500 For Sale
366 Great Deals out of 11,643 listings starting at $12,950
2014 Chevrolet Silverado 1500 For Sale
419 Great Deals out of 13,085 listings starting at $9,500

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.