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1993 Ford F-350

Question: i am not getting any spark from my coil

Question

nastywords, 5.8L V8, Austin, TX, March 23, 2011, 21:06
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 Rookie

my truck wont start

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  • Answer #1

    DaveJHM March 24, 2011, 00:26
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     Master

    You could have a TFI Module failure. This is the distributor mounted Thick Film Ignition control Module.

    These TFI modules fail pretty regularly, and were actually part of a class action lawsuit against Ford in 2001-2002.

    I can't prove this is the failure on your particular vehicle, but I would bet on it. Replace the TFI module and stator in the distributor.

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    Visitor, March 24, 2011, 07:16

    I replaced what is called a "pick up coil ...still no spark?

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    ZeeTech, March 24, 2011, 10:21
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     Master

    It's time to take it to a mechanic who can properly diagnose and fix it for you, unless you want to keep continue spend $$$ and replace perfectly good parts.

    Zee

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    DaveJHM, March 24, 2011, 17:27
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     Master

    Agreed, Zee!

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    Austin Mobile Mechanics, March 29, 2011, 11:12
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     Enthusiast

    With some basic skills you can test for pulse at the Ign. coil. The only tool required is a test light. With a test light connect the clamp to batt. + then have a friend crank the engine as you probe the coil -. Be careful not to touch coil wiring in case of a random spark. The test light should flsh as the engine cranks. If it does suspect the Ign. coil if it does not suspect the pickup coil or module. One of wich you have already changed so the suspect part would be the spark module. This bearing in mind the wiring has not been tapperd with and is in good condition.

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  • Answer #2

    Austin Mobile Mechanics from Mobile Mechanics Austin, March 30, 2011, 09:28
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     Enthusiast

    With some basic skills you can test for pulse at the Ign. coil. The only tool required is a test light. With a test light connect the clamp to batt. + then have a friend crank the engine as you probe the coil -. Be careful not to touch coil wiring in case of a random spark. The test light should flsh as the engine cranks. If it does suspect the Ign. coil if it does not suspect the pickup coil or module. One of wich you have already changed so the suspect part would be the spark module. This bearing in mind the wiring has not been tapperd with and is in good condition.

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