1996 Mercury Marquis CODE P0308

1996 MERCURY MARQUIS
188,000 MILES • 4.6L • V8 • RWD • AUTOMATIC
Avatar
BIGFLAVV
  • MEMBER
  • 1 POST
CODE P0308 IS SHOWING. I CHANGED THE SPARK PLUGS, WIRES, PVC VALVE, VALVE COVER GASKET, IGNITION COIL. WHEN I ACCELERATE THE CAR SHUTTERS OR MISFIRES AND IT MAKES A WHISTLE NOISE WHEN I STEP ON THE GAS. AND IT WASTES GAS. COULD YOU PLEASE HELP ME.
Jan 24, 2014 at 8:38 PM
Advertisement
Avatar
CJ MEDEVAC
  • CERTIFIED EXPERT
  • 11,004 POSTS
ARE YOU A-GETTIN' THAT SULFUR SMELL?

BETTER HAVE THE CATALYTIC CONVERTER CHECKED FOR BEING PARTIALLY OR STOPPED UP!......THIS TOO WILL MAKE IT SET A P0308 CODE

FROM THE SOUND OF YOUR SYMPTOMS, I'D BET ON THAT BEING THE PROBLEM!

KEEP US POSTED ON PROGRESS!

THE MEDIC
Images (Click to enlarge)
Attached Media
Attached Media
Jan 25, 2014 at 8:34 AM
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
have a pro diagnose this as the 308 coe is a misfire and it can be an injector/fulepressure,maf sensors. He can scan it an duse a mode 6 to find the problem to correct it.
Jan 25, 2014 at 9:44 AM
Advertisement