Join Date: Jun 2004
Location: Seattle, WA
Feedback Score: 0 reviews
First, I just want to thank the people that take the time to read or respond on this. It is nice to know there is some place where I can learn more about my truck. My poor old truck.
I still don't know what's going on, but this is the current situation. Of course after the first day it ran flawlessly for the next day. I swapped out the relay #1 and maxi fuse #9, both seemed ok and tight. I looked inside the relay it appeared to be visually okay, I messed with the fuse and couldn't make it open or change resistance, but replaced them both.
As it seemed the engine would run/fire with the key in the start position (cranking,) I wired in a cut off switch for the starter solenoid thinking at worst I might be able to get the thing out of the road while holding the key switch cranked while not energizing the starter.
I also wired a toggle switch between maxi fuse 21 (30A trailer electronic brake/constant 12V) and fuse 22 (pcm relay/glow plug stuff/charge stuff,) that allowed the engine to run even with the key turned off, thinking that again I could at least get it out of the road if it was related to an ignition switch failure.
As the the truck was not acting up at that time, I couldn't test these other than verify that in either scenario, the engine itself would run okay, although the tranny was in emergency mode and the ABS light was on. But it appears you could drive the truck, but with no power to accessories circuits.
Today the truck acted up and neither of those above bypass attempts seem to change the symptoms at all. (Probably not the ign switch.)
It started stumbling and died a couple times, but was able to restart each time.
It was missing badly and belching out white smoke, and neither of those wiring experiments made any difference as far as the way it ran. I was sputtering down the road at like 30mph blowing out a smoke screen, but it didn't stop running completely, and at 30mph it was a "consistent" miss.
the check engine light came on, and after about a mile or so the symptoms went away and it was running fine again. I took it to a couple different auto parts stores after that, and it will not produce an error code. Is there a specific code reader I need to use?
I don't know exactly what error codes the truck stores, but I was driving this thing all over yesterday with the key off and the transmission in emergency mode, and with the ABS light on the whole time. Same with driving it with the starter solenoid disengage but the key in the start/crank position, that killed power to certain circuits and the truck did not act normal (abs light on, clunky shifting.)
I was actually concerned there would be a bunch of codes on there and I wouldn't be able to figure out which ones I'd caused and which ones are the issue. But there were no codes. What do I not understand?
If I take it to a professional, are they going to be able to access information/codes I can't?
Does anybody have a recommended service shop north end of Seattle?
What's the chance that somebody with the right equipment can easily diagnose this?
I didn't notice the tachometer jumping all over but could this be something like a cam position sensor?
I ordered a replacement ignition switch, but don't have it yet, but I would think that my jerry-rigged wiring may be eliminated that suspect
Sorry it's so long, any input is appreciated.
It's running perfectly now, and the concern is taking it to a shop and them not being able to find anything wrong with it if it is not acting up, at the moment.
1997 F250 XLT SC/LB AT Powerstroke 4X4 all stock