Oil pressure

Asked by hcgirl2007 Sep 04, 2019 at 04:49 PM about the 2005 Chevrolet Tahoe LS 4WD

Question type: Maintenance & Repair

05 chevy tahoe 5.3l v8. I bought the car it was fine.
Started getting low oil pressure. Then it started
ticking. Since it had over 300000 miles on it we
decided to do a engine swap. Got the new engine
put in. Everything seemed fine then all a sudden
getting low oil pressure again. Put a new oil pump
on it. Car ran fine. Then once got warm it started
dropping pressure again. And also started ticking
again. Found out there's a screen that sometimes
get blocked. Well this one already missing the
screen. Took out oil pressure sensor and started
the truck up. It shot oil out and some sludge.
Thought had it fixed. Ran it today did fine in the
morning. Had above 25psi. Drive this afternoon
when warmer was going fine then dropped down
to nothing with low oil pressure warning and
ticking back. I need my car running again

1 Answer

330

I have the same car. Same problem. Ended up just changing oil pump. The ticking you hear is probably your lifters. Enough oil is not getting in with the erratic pressure and they’re not lubricated. Dealership told me I needed to replace the lifters for $2500, I said “well potentially if I replace the pump and get the pressure back to normal, the ticking could stop, right?” They agreed. And the ticking did go away once pump was replaced. And if you haven’t don’t do already, may want to change out the water pump while your at it. Since someone will already have it accessible changing out the oil pump.

Your Answer:

CarGurus Experts

  • #1
    John Carson
    Reputation
    3,580
  • #2
    Rowefast
    Reputation
    2,320
  • #3
    Gene Arnett
    Reputation
    2,160
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Yukon
19 Great Deals out of 741 listings starting at $5,998
Used Chevrolet Suburban
4 Great Deals out of 406 listings starting at $12,000
Used Cadillac Escalade
14 Great Deals out of 396 listings starting at $6,995
Used Chevrolet Silverado 1500
211 Great Deals out of 5,943 listings starting at $3,995
Used Ford Expedition
30 Great Deals out of 810 listings starting at $7,888
Used Ford F-150
289 Great Deals out of 15,384 listings starting at $1,712
Used Toyota Sequoia
4 Great Deals out of 72 listings starting at $16,489
Used GMC Yukon XL
13 Great Deals out of 541 listings starting at $12,950
Used Toyota 4Runner
14 Great Deals out of 328 listings starting at $9,900
Used Ford Explorer
83 Great Deals out of 1,991 listings starting at $2,999
Used GMC Sierra 1500
127 Great Deals out of 6,857 listings starting at $3,975
Used Dodge Durango
51 Great Deals out of 2,276 listings starting at $5,500
Used Jeep Grand Cherokee
113 Great Deals out of 3,274 listings starting at $4,995
Used Lincoln Navigator
5 Great Deals out of 196 listings starting at $9,869

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.