oil pressure drops at high speed

Asked by Rwoods43701 Aug 31, 2020 at 05:31 PM about the 2001 Chevrolet Tahoe LS 4WD

Question type: Maintenance & Repair

i have a tahoe its a 2001 5.3l   i can drive it around town all day no issues...
now when i get on the highway going 70 or even like a state route going 55  it
takes it a little bit like 25 to 30 mins of driving at that speed  oil pressure drops
down to 20 i hear ticking like a lifter i pull over shut the car off then wait 2 to 3
mins ticking gone oil pressure is back up and 25 mins later it does it again  i
replaced the oil sending unit and it still does it  im stumped on this

2 Answers
670

GuruPD8FJ answered 4 years ago

Did you replace the screen below the sending unit? Oil is getting much hotter at those speeds but still should not drop pressure. Check screen.

Mark helpful

Rwoods43701 answered 4 years ago

on the 2001 there is no screen below the sending unit that was verified by chevy dealership they did not start putting screens in until 2007

Mark helpful

Your Answer:

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