2003 Pontiac Bonneville CYLINDER MISFIRE AND OIL PRESSURE H

2003 PONTIAC BONNEVILLE
Avatar
BLUEYEZ
  • MEMBER
  • 1 POST
Engine Performance problem
2003 Pontiac Bonneville 6 cyl Front Wheel Drive Automatic

MY CAR IS A 03 BONNEVILLE. THE OIL PRESSURE IS HIGH IT SHOWS LOW OIL BUT WHEN I PUT OIL IN IT SHOWS TOO MUCH THEN. MY CYLINDERS 2, 4, AND 6 ARE MISFIRING IN THE ENGINE. I HAVE REPLACED MY SPARK PLUGS, A VALVE, AND THE ECM COMPUTER AND IT IS STILL SHOWING CHECK ENGINE LIGHT ON. AUTO ZONE HOOKED IT UP TO THE MACHINE AND ITS READING CHECK FUEL PRESSURE MAYBE AND OTHER CODES TO DO WITH THE FUEL. I WOULD HATE TO KEEP PUTTING MONEY INTO THE WRONG PARTS. COULD SOMEONE TELL ME IF THEY HAD THESE SIMILAR PROBLEMS AND WHAT THEY DID? IM STILL PAYING ON MY CAR AND CANT GET MY PLATES TILL THIS IS FIXED CAUSE OF EMMISSIONS!!!!!
Jan 27, 2010 at 12:31 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.
Advertisement
Avatar
BILLYMAC
  • CAR REPAIR CONTRIBUTOR
  • 2,204 POSTS
Hi
the cyl misfires are all on one bank. the odds of all three coils going bad is very slim. so that makes me think that the only other place all three of these things are connected is through the ignition module.



Oil pressure. this could be a bad oil sender or a low oil level sensor.
Jan 27, 2010 at 1:49 PM
Advertisement