Question about 1986 Ford Mustang

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86 2.3l mustang pops and backfires once warmed up

Changed all electrical under hood,including module under distributor twice. Carran good for a while but now it's doing the same thing.

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  • yadayada
    yadayada May 11, 2010

    how is the fuel pressure? do u have any trouble codes?

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If your car works fine when you push the gas but bogs in normal conditions it may be your timing is off.

Posted on Jul 03, 2009

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How do you locate and change an ignition control module on a 1994 Camaro?


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The Control Module-Ignition is located: Under hood, center, front engine area, below valve cover, mounted in distributorless ignition assembly

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The Control Module-Ignition is located: Under hood, center, rear engine area, mounted in distributor

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My 90 dakota 3.9 drives fine for three miles then backfires under hood restart it and drives fine


It could be a long list of things electrical, including the key switch, coil, and pickup module inside the distributor. Even the computer could do it.
Until it gets to the point where it will not start, you may not be able to find the source.
Have you checked the computer for trouble codes?

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Locate the ICM on a 95 bronco 5.8L (ignition control module)


On 1995 Ford Truck Bronco 5.8L EFI 8cyl the Control Module-Ignition is located under hood, center, upper engine area, front of intake manifold, mounted on front side of distributor.

zjlimited_1625.jpg

Fig. 1: A TFI-IV ignition module



Hope this helps (remember to rate and comment this free answer).

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1 Answer

I HAVE A 95 BLAZER WITH NO SPARK , CHANGED ALL COMPONETS I COULD FIND , STILL NO SPARK , NOW WHAT DO I DO


Could be the ignition module. It is located on distributor under rotor . Unscrew distributor cap and flip out of the way, leaving spark plug wires attached. Pull rotor off and remove electrical wires on both ends of ignition module. unbolt ignition module and remove. Make sure you put the grease on the metal bottom side of ignition module to disipate the heat that is generated, before you install new ignition module, if you want it to last.Good Luck.

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If you start the engine and it sounds like its having trouble staying started with plenty of gas and no engine lights on, what could be the source of the problem? I try putting the car out of park and the...


That sounds like a problem with the ignition coil, or the ignition module located on the side of the distributor, and you can remove the ignition module (requires a special tool available from most auto part stores) and most auto part stores will test the ignition module for free.

Also, remove the distributor cap and inspect the connector for the ignition module inside of the distributor from the pick-up coil/stator and the connector should be white as shown in the image here and notice how white the connector looks, when it looks dark or burnt looking then either replace the pick-up coil coil/stator at the same time as the ignition module, or replace the entire distributor. (If you replace the distributor first note how the distributor housing is positioned, and do not forget to mark where the ignition rotor is pointing before, and after you pull the distributor up, that way the distributor will drop right back into place, and re-position the distributor housing as close you can get it to the way the original one was positioned that way the engine should start right up and then just follow the set timing procedures for the vehicle and the timing specifications should be listed out on the emission label under the hood, and be sure not move, crank, or rotate the crankshaft until the distributor is installed back into the engine)

If you are replacing the ignition module only, be sure that if that ignition module is supposed to have a silicone grease or a die-electric compound that it does come with the ignition module, because it is a heat sink and the ignition module will burn up without it. Also be sure to completely coat the entire metal contact surface of the ignition module with a thick coat of the silicone grease or die-electric compound and do not leave any of the metal contact surface un-coated, and be careful not to over-tighten the ignition module or it can be damaged. Some ignition modules have a gel film on the contact surface and do not require any silicone grease or die-electric compound.

Ignition pick-up coil/stator, notice now white the connector for the ignition module is, check your connector and if it is dark or burnt looking then replace also replace the pick-up coil/stator with the ignition module, or replace the entire distributor.
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Image of ignition module.

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get a 20 dollar haynes or chiltons manuel and find the module and coil. always change the ignition module and coil every 4 no more than -5 years to be safe.

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Tune up should include.Plugs,distributor cap,rotor,air filter,fuel filter,if plug wires have never been replaced then replace plug wires,pcv valve.Use good name brand parts.Don`t get cheap stuff.Make sure and gap the plugs.The specs.decal should be under the hood or on the hood itself.The plug gap is .045.Also use die electric grease on plug wires.It is usually supplied with wires.Hope this helps.Good luck.

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3 Answers

Have a 1985 chevy blazer k5, and all of a sudden it wont start... no spark!!! replaced ignition module and coil, but still same problem......somebody help please!


Check the ignition switch located under the dash on the steering column. Check to see if you hear an electric switch go on when you first turn the key on.

Aug 26, 2009 | 1985 Chevrolet S-10 Blazer

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