2003 Chevy Avalanche OIL PRESSSURE

2003 CHEVROLET AVALANCHE
51,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
HANFORD
  • MEMBER
  • 1 POST
i JUST BOUGHT A 2003 CHEVY AVALANCE AND WHEN IDOLING OIL PRESSURE IS AT 40. WHEN GIVE IT GAS AND PICK UP SPEED THE PRESSURE INCREASES, SOMETIME TO THE POINT OF REACHING THE MAX ON HTE GUAGE (80) AND DROPS WHEN THE TRUCKS SHIFTS BACK TO ABOUT 40. THE FASTER I GO THE MORE IT GOES UP. IS THIS NORMAL IF NOT WHAT SHOULD I DO?
Dec 1, 2008 at 10:58 AM
Advertisement
Avatar
JAMES W.
  • CAR REPAIR CONTRIBUTOR
  • 2,394 POSTS
It could be the oil pressure sending unit which is down by the oil filter. The oil pressure is controlled by the pressure relief valve on the oil pump inside the oil pan. To your knowledge, has the engine had any major work done on it? You can run an "actual oil pressure test" by screwing a gauge directly in place of the OP sending unit and running the motor to see what the gauge says.
Dec 1, 2008 at 1:28 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.