That's not a recognized diagnostic step for this symptom.That's not the issue. Read that caption.Because they're overseen by Ford, who designed them originally. The others are just crap. The only issue with Ford remote ICMs was this:


(phone app link)

Otherwise, they're extremely reliable - I've never found a bad one, in decades of junkyarding.No, Ford never used the OBD1 protocol. That was a rare GM system. These trucks are EEC-IV, and the best scanner for them is a jumper wire:


(phone app link)Even if the bulb is good & it's still connected properly, it doesn't come on for every fault code. Only emissions, and a few driveability faults.


(phone app link)

But it's unlikely a code would even be stored for this symptom (which I'm still not convinced has anything to do with the ICM). The correct resistance for the coil is given in the 2nd caption in my first post.

 

Thank you Steve83 for all the great info. Good to know I don't need to waste money on an OBD1 scanner. I will try your methods as soon as I'm back on my feet. In the meantime, do you have any hunches as to what may be the culprit if it's not the ICM? Possibly the Ignition coil? I know I need to run some tests, but I thought you might have some insight. As I mentioned before, I never had a bit of trouble from my 96 F150.( I was a fool to trade it for a 93 Bronco.)
1995 F150, 5.8L, 4x4, Super Crew Centurion Conversion

 

It's nothing but speculation until tests are performed.
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I realize that. But with the collective experience and knowledge in this forum I was hoping someone could give me an idea where to start testing based on my symptoms.

 

WE DID!!! I know it's driving you bat**** crazy that you can't put two feet on the ground and get working but be real man, we don't have crystal *****, you have to test and we told you were to test first. Get that done and come back with the results, we'll go from there if need be. there are NO common problems with those systems, you have to start at test 1 and work your way down the tree of test steps, you skip one step and you might as well start at step 1 again.
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Damn dude, I'm sorry I tripped your trigger. I'm not a mechanic by trade although I've managed to successfully repair many cars over the years. You and Steve83 have a lot of knowledge and I guess I figured this is something you've run across before. I know you don't have crystal *****, I'm not expecting a quick fix or a miracle. I am going to run the tests you guys have suggested when I can. In the meantime, I wouldn't mind some expert speculation. Not like I'm going to hold you to it or anything. Just trying to form a plan for when I'm back on my feet. If you'd rather not speculate, fine, just don't chew me out like some kid.

 

Not my intention but you were given step 1 and without performing that specific testing there is nothing else to do or say. We all went to school to learn how to work on these things and that's what we were taught. That simple, you take one step at a time. Steve has provided a ton of information for you to read over and get a little familiar with in the mean time, we wouldn't be answering posts if we didn't want to help.

Here's an example of what I'm talking about, we have a flow chart a step by step guide to diagnose problems, you look up the symptom then scroll over to a flow chart, that chart opens up into a bunch of mini charts with results leading off in different directions like branches on a tree depending on the last tests results.



You start at step one then look at the chart, the chart then guides to the next step and so on. Sorry if I seemed a bit short, you couldn't have possibly understood the procedure, hopefully now you do.
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I have been reading what Steve told me. Alot of it I'm still digesting. I'm sorry if you thought I was being pushy. One of the downfalls of texting, it's hard to determine tone and mood. I promise you I haven't disregarded anything you guys have told me, but I can see how my questions might lead you to think so. Flow charts I can do. I don't recall seeing one in the other posts. I probably just overlooked it. Part of the problem also is that I've been trying to read all this on my phone. I'm going to try to hobble downstairs to my computer and print all this stuff off. I'll give you guys a break until I can get back with some test results. That'll be about 6 weeks of peace and quiet for you.
Thanks again for the help

 

My guesses are in my first post, but they're just blind guesses. Yes, there's a lot to take in, but you can't expect to diagnose a vehicle (even one as simple as this) without any background. Take your time (it seems you have some to kill) and read it a few times until it makes some sense to you. Then try it. If you get a confusing result, post EXACTLY what you did (tools, equipment, steps, results, problem) with pics, and we'll try to put you back on-track.

But any more guesses now would be less-helpful, more-confusing, and more-likely to give you a reason to waste more money on something that's not likely to help. The fastest, cheapest repair begins with DIAGNOSIS - not guessing.

I agree that a '93 Bronco is not a step UP from a '96 truck. But some people would say a Centurion SCrew isn't a step up from a '93 Bronco.

 

Point taken. Thank you.