Question about 1988 Mercury Cougar

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Ive changed the rotor cap an distributor cap and the plug wires on my 88 cougar an itll run fine until it gets warm then after it warms up itll act like it aint firing an it backfires

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Plugs or ignition module culd cause the problem

Posted on May 27, 2010

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1 Answer

Spits and sputters until warm


TUNE-UP, SPARK PLUGS, WIRES, AIR & FUEL FILTERS, FUEL INJECTOR CLEANER IN TANK, ALSO REPLACE PCV VALVE, & MOST IMPORTANT, REPLACE EGR VALVE, IT GETS TOTALLY CLOGED UP, YOUR ENGINE IS KNOWN FOR THAT. I HAVE A GNC 2500, 3/4 TON. SEEN IT ALL. CHANGE YOUR DISTRIBUTOR CAP & ROTOR ALSO. JUST DO IT !!!!!!!!!!!

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Could be a lot of things I would start here. If the engine is shaking at idle or not it maybe the spark plug wires. easy way to check start the truck take a spray bottle and spray a mist on the wires to see if the truck runs worst make sure you stand back while doing this so you don't get shocked.

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Car stumbles, backfires until warm


You need to replace your distributor. There has been many problems with these. I had the same problem with my 1993 villager and had tried many different things and none worked. I went to a junk yard and got a used distributor and now it runs fine. I would try this before anything alse.

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You might have computer problems.

Does the check engine light come on when it starts to miss?


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