Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
2004 Chevy avalanche... Looses oil pressure and has lifter noise when engine is warm...?
I have a 2004 Chevy avalanche... 125,000 miles... When I start the truck in the morning it has good oil pressure... Somewhere between 55-60 psi and runs smooth and quiet... But as it gets up to operating tempature the oil pressure drops to 30-35 psi, and I have a lifter noise from the left side of the engine... If I drive it at hi way speeds, the oil pressure will run about 40-45 psi, and the lifter noise stops... but then drops to 30-35 psi at idle and after a few minutes the lifter noise returns... Anyone have this same problem? Any help would be appreciated...
2 Answers
- Anonymous2 years ago
That's the symptom of worn engine bearings caused by the oil not being kept clean and changed regularly enough It's still within normal rage but with warm weather coming up, change your oil and use a slightly heavier viscosity like Mobil 10-40 or 15-50 and try an oil additive such as Bar'S Rislone High mileage formula.