WHAT CAUSE THE MISFIRE

Asked by RTM39 Jul 28, 2015 at 11:15 AM about the Lincoln Mark VIII

Question type: Maintenance & Repair

COLD START CAR RUNS GREAT AFTER A SHORT TIME RESTART AND CAR
MISFIRES ON 3 AND 7

7 Answers
70,095

Kelly answered 8 years ago

plugs, wires,cracked (coil), vacuum leak

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315

Olcountry answered 8 years ago

Could be a bad crankshaft position sensor also. Heat and a starter Restatt could cause a faulty reading for the computer.

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1,070

Poly-Boi answered 8 years ago

Dnt forget new oil change during spark plug change also check cap on spark plug ask local store for recommended cap space on spark plug,the best oil quality available along with oil filter and if u want buy slick50 when changing oil, 10% slick50 and 90% oil..... Do not buy anything cheap... Always buy original or the next best thing available always ask.good luck N keep us posted if do so...

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157,475

Bob answered 8 years ago

Plug boot, spark plug, coil on plug most likely the cause. If it continues after replacing the parts I would suspect fuel injectors, but 2 of them causing a problem at the same time is unlikely.

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