Yesterday I was driving and my truck just stopped after I went over a hump in the road, and she stopped died about 1 tenths of a mile after the hump. I checked the safety switch under the dash working she turns over but the fireing Fuel pump working come on when key is turned and goes off after a couple of seconds filters clean I replaced the coil, The first coil I could not see any spark I replaced it there is 11.5V at the coil plug I now I have power to the coil the second coil no spark either. This is an EFI <?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>
Any suggestions

 

Moved here from 80-86.

 

Sorry I have Bad eyes

 

I their some body who can advice me or a possible solution

 

One of my old trucks did this to me once and it was just the wires going to the coil

 

could really only be two things

1 ICM, located on the dizzy
2 pickup coil inside


Mine was number 2 the other day, the magnet broke off.


Make sure you do a computer (KOEO) test first.

 

I dont Have a computer to do a Key On Eigine Off test

What is a dizzy,

 

If it's EFI, you have a computer on which you can run a self-test:

Fuel Injection Technical Library » How To Run a Self-Test

Given the problem appeared after hitting a bump, that tells me the problem is MUCH more than likely electrical, and some of these problems can be hard to find.

There's sumthin' called a Wiggle Test where you wiggle wires to see if the symptoms change... electrical connectors can become corroded, the insulation on wiring can become burned or chafed and result in the underlying wire becoming corroded or shorted to ground, etc. Electrical components can burn out with a sudden jarring (kinda like a light bulb).

I would begin with first observing all the wiring and cleaning up all the connections, then do the computer self-tests.

 

Thank you I will give it a shoot

 

I have run a self test 11-111-11-111----1-1-1-1-1
23 23 11111

does this mean anything? I know the 23 means a low voltage

ideas

 

You should check if you have fuel pressure and spark at the plugs, the coil is not enough...read through here, and run the test, 5 pages..Part 1 -Ford Ignition Module Test. Fender Mounted Module (ICM).

 

No spark at Coil I have fule pr

 

I can not get the skrews out of the ICM I do not want to take the Distributor out. the hole is to samall for my 1/8" scokets

 

not much of a choice here. I have to take mine out also.

just mark where the rotor is pointing, and make sure when you install, it is in the same place. Then do your timing.

also, you need to go buy the tool to take out the ICM, it is a must have.

 

I checked my spark plug no spark at all