PCM Relay? Truck won't start
#61
#62
#63
Relocating Harness - Tested (I'm Happy)
I just finished a month-long swing through the state of Texas. It was 1,500 miles of towing my 9,000 pound fifth wheel RV along with an additional 1,500 miles of exploring. I had zero problems with the starting. I won't go into the problem or the solution since they are clearly spelled out in the posts in this thread.
I don't think I'll ever get back to the total 100% confidence level I once had in my truck, but I'm guessing it is in the mid 90% level now and still growing.
Whenever I see another F-250 truck I make it a point to quickly tell the owner about the harness, its location in relation to the parking brake, the potential problems and solution. Although I have the speech down to less than 1 minute now, some still look at me like I'm a nut.
Ya'll take care.
I don't think I'll ever get back to the total 100% confidence level I once had in my truck, but I'm guessing it is in the mid 90% level now and still growing.
Whenever I see another F-250 truck I make it a point to quickly tell the owner about the harness, its location in relation to the parking brake, the potential problems and solution. Although I have the speech down to less than 1 minute now, some still look at me like I'm a nut.
Ya'll take care.
#64
I've been problem free as well. I know what you mean with the confidence. It's just not the same; I still have the what if laying in the back of my head. Would not usually be an issue to me but something that dumb and easy to render the truck totally dead bothered me. Makes me question other important electrical connections. Good to hear is going well.
#65
Good to hear all is well. I have my speech ready also. Hopefully it will help someone along the way.
I was speaking to a guy with a magnificently customized 2015 550 (matched his amazing 5th-wheel) about the issue. He had been left stranded twice while towing but not for this issue. He thought his truck had the harness in the same place but I never confirmed with him.
Thanks to the information found here, I feel pretty good about this issue.
Bandguy
I was speaking to a guy with a magnificently customized 2015 550 (matched his amazing 5th-wheel) about the issue. He had been left stranded twice while towing but not for this issue. He thought his truck had the harness in the same place but I never confirmed with him.
Thanks to the information found here, I feel pretty good about this issue.
Bandguy
#66
So my truck is throwing all the same lights, but I've tried the parking break multiple time and the truck still won't crank I had it towed to the dealer today and they are saying it's the PCM and want 1,700. To replace it have any of you replaced the PCM and did it fix the problem? Thanks
#67
#68
I was going to ask the same thing. I think someone also had a connection fail under the hood as well. You might actually have a bad pcm but practically every person on this post had found a problem with the harness, typically the one attached at the parking brake. The dealer definitely seems to not be able to tell between a bad harness or pcm issue either being they show the same symptoms. Checking the harness first is what I would do, its pretty much free to do. Let us know how you make out.
#69
So my truck is throwing all the same lights, but I've tried the parking break multiple time and the truck still won't crank I had it towed to the dealer today and they are saying it's the PCM and want 1,700. To replace it have any of you replaced the PCM and did it fix the problem? Thanks
The dealer will not always mention this warranty coverage, if you look in your owners manual it is in there. I just went though this with a toyota dealer. My mother in law needed the ECU replaced in her Matrix, they quoted me 1100. When I mentioned this federal emissions warranty, the service writer had to "check with his manager". When he got back to me, he told me the repair would be covered under warranty.
Also, if the part is covered under the emissions warranty, then any diagnostic fees associated with the repair would also be covered.
#70
#72