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General Site Info => General Discussion => Topic started by: 75 C20 on January 26, 2008, 09:57:17 pm

Title: 1994 4.3
Post by: 75 C20 on January 26, 2008, 09:57:17 pm

my brothers 94 WT with a 4.3 quit on him while he was driving down the road. my originally thought was lack of fuel . its getting gas but it has no spark.
i wont start up-no spark- i was thinking ignition coil.  i haven't got to take the cap off yet but i thought id get your guys thoughts on this.

Title: Re: 1994 4.3
Post by: choptop on January 26, 2008, 10:18:29 pm

quick way to test spark to dist. is to pull coil wire and crank over engine. I highly recommed doing this with a spark tester like ones used to check fire to spark plugs. If you don't have one, inserting a screwdriver in one end and the placing next to the block will work. DONT HOLD ON TO THE SCREW DRIVER< AND MAKE SURE THERE ISNT ANY FUEL ON THE INTAKE. It will hurt. Use clean rags or such to hold the screw driver shank off of the block about 1/16 to 1/8 inch. This should allow you to see the spark. I am not familiar with the engines, but if they are equipped with a crank sensor, this can be an issue as well, but I don't thin k they have one

Title: Re: 1994 4.3
Post by: Fordeatinz71 on January 27, 2008, 11:04:13 am

ignition module...right under the distributor cap...with two plugs coming out of it...

Title: Re: 1994 4.3
Post by: choptop on January 27, 2008, 01:19:48 pm

Totally agree. That would be the next step and is not uncommon. Very good point, I forgot about it

Title: Re: 1994 4.3
Post by: 75 C20 on January 27, 2008, 05:28:24 pm

got it figured out- was  a lose connection on a wire

Title: Re: 1994 4.3
Post by: VileZambonie on January 27, 2008, 05:31:20 pm

1st step in trouble shooting is trouble shooting not parts changing. Glad you fixed it.