1996 Mercury Marquis CODE P0308

1996 MERCURY MARQUIS
188,000 MILES • 4.6L • V8 • RWD • AUTOMATIC
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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
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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.
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CJ MEDEVAC
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 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
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Jan 25, 2014 at 8:34 AM
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HMAC300
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 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
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