2004 GMC not holding oil pressure

Asked by Jan 26, 2017 at 03:19 AM about the 2004 GMC Yukon XL

Question type: Maintenance & Repair

When I turn the car on it shows only about 10 on
the oil pressure and I hear knocking. Flushed out
all the old oil and did full oil and filter change. After
the oil change when I first started it up and acted
the same on 5 to 10 for a few sec then it jump up.
it looks fine. Turned it off later I went to start it
again and it did the 5 to 10 and stayed there.
sounded horrible knocking again and no oil
pressure? No leaks?? Any ideas?

2 Answers

75,555

If this is a high mileage engine, it may be just worn out. Knocking is not good, worn crank & cam shaft bearings. You could try a new oil pump but it would be expensive to do. It is located on the front of the engine. Timing chain cover would have to come off. Or you could pull some bearing caps off the rods, and look at the condition of the bearings.

54,585

Likely time for a rebuild or engine replacement.

Your Answer

GMC Yukon XL Experts

  • #1
    TK76
    Reputation
    350
  • #2
    Robert Davis
    Reputation
    200
  • #3
    tennisshoes
    Reputation
    190
View All

Related Models For Sale

Used Chevrolet Suburban
454 Great Deals out of 24,164 listings starting at $1,799
Used GMC Yukon
596 Great Deals out of 22,359 listings starting at $1,200
Used Cadillac Escalade ESV
126 Great Deals out of 5,758 listings starting at $3,900
Used Chevrolet Tahoe
834 Great Deals out of 42,604 listings starting at $1,980
Used Cadillac Escalade
250 Great Deals out of 12,258 listings starting at $2,000
Used Ford Expedition
344 Great Deals out of 17,200 listings starting at $1,999
Used GMC Sierra 2500HD
107 Great Deals out of 14,470 listings starting at $2,799
Used GMC Sierra 1500
1,161 Great Deals out of 66,239 listings starting at $1,750
Used Lincoln Navigator
94 Great Deals out of 3,894 listings starting at $1,995
Used Ford F-150
2,923 Great Deals out of 215,531 listings starting at $1,295
Used Chevrolet Silverado 1500
2,484 Great Deals out of 177,648 listings starting at $699
Used Toyota Sequoia
125 Great Deals out of 5,382 listings starting at $1,999
Used Cadillac Escalade EXT
20 Great Deals out of 625 listings starting at $3,999
Used Nissan Armada
149 Great Deals out of 9,645 listings starting at $3,400

Used Cars For Sale

2018 GMC Yukon XL For Sale
4,513 listings starting at $46,075
2017 GMC Yukon XL For Sale
31 Great Deals out of 4,234 listings starting at $41,455
2016 GMC Yukon XL For Sale
12 Great Deals out of 745 listings starting at $35,995
2015 GMC Yukon XL For Sale
23 Great Deals out of 1,254 listings starting at $26,000
2014 GMC Yukon XL For Sale
19 Great Deals out of 309 listings starting at $11,995

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.