PCM Relay? Truck won't start
#76
01-01-2016, 05:47 PM
#77
01-01-2016, 08:29 PM
Denny
#78
02-01-2016, 03:59 PM
After reading this I removed my connector from parking brake bracket and used a few wire ties to secure it to be on the safe side. Why does mounting that connector to the parking brake bracket cause problems? maybe from the vibration when brake is released? Surprised there's not a TSB for this.
#79
02-01-2016, 04:18 PM
Given the symptoms, it makes sense that we had the problem due to the shock of releasing the brake. I think that is everyone's working theory.
Coincidently (?) a person in my dealer's service department told me they are having a lot more wiring issues with Fords since they changed the way they secure the pins in the wiring harnesses.
The has been a report that Ford moved the connector off of the brake bracket for 2016.
Coincidently (?) a person in my dealer's service department told me they are having a lot more wiring issues with Fords since they changed the way they secure the pins in the wiring harnesses.
The has been a report that Ford moved the connector off of the brake bracket for 2016.
#80
02-03-2016, 12:38 AM
Cargo Master
#81
09-24-2016, 01:49 PM
Denny
#82
11-01-2016, 04:47 PM
Glad I found this. I had a 2015 F550 come through today that had a random no-start with the same symptoms. I quizzed the guy about parking brake usage, and UP requires the parking brake to be set when the crane is in use, and it acted up right when he popped the brake the last time. I wound up zip tying the connector tight and got it away from the parking brake bracket. We'll see how long this lasts.
#83
11-01-2016, 05:11 PM
#84
11-01-2016, 07:23 PM
#85
11-09-2017, 04:00 PM
12 F250 same issue
It's the wiring harness connector right where the parking brake pedal is. I had the same problem a few weeks back while on vacation....the local dealer there was no help. I had all the same issues mentioned as well as a no start so the truck was towed in. Released the brake coming off the roll back and everything started working so the dealer politely to me to get lost. I drove it home and pulled the harness down and pulled the connector apart. No start and all the same lights. No broken pins that I can find. No issue since. I was hoping to recreate the issue for the local dealer at home but I can't get it to do it anymore since I put it back together. The harness connector is attached to the bracket for the parking brake. The shock from releasing the brake is obviously making a contact issue. The harness has a latch to prevent separation but it still must move to create a connection issue. I'd guess over time broken pins could be an issue. The bad part is that is looks to be the harness it for everything so if there is any issue the truck will be dead. Also from day one my air bag light would flash when the parking brake was released. Hasn't done it since. Hope it will help someone....it really sucks being stranded with a new vehicle that won't run. I'll place a solid bet if you have the issue and squeeze the plug together you truck will run.
#86
05-04-2018, 02:49 PM
2015 6.2 won't start
Has anyone else had an issue with their truck not starting, or hard to start? Usually occurs when I let it set overnight, when I try to start it (regardless of outside temperature) it will crank a long while before starting. Sometimes it will not start on the first attempt and the horn will honk before it quits trying. I do have a factory auto start, but it doesn't seem to make a difference if I use it, or just start it with the key. Comments/suggestions?
#87
05-13-2018, 08:48 PM
#89
02-28-2020, 01:07 PM
Thank you!!!!!!
It's the wiring harness connector right where the parking brake pedal is. I had the same problem a few weeks back while on vacation....the local dealer there was no help. I had all the same issues mentioned as well as a no start so the truck was towed in. Released the brake coming off the roll back and everything started working so the dealer politely to me to get lost. I drove it home and pulled the harness down and pulled the connector apart. No start and all the same lights. No broken pins that I can find. No issue since. I was hoping to recreate the issue for the local dealer at home but I can't get it to do it anymore since I put it back together. The harness connector is attached to the bracket for the parking brake. The shock from releasing the brake is obviously making a contact issue. The harness has a latch to prevent separation but it still must move to create a connection issue. I'd guess over time broken pins could be an issue. The bad part is that is looks to be the harness it for everything so if there is any issue the truck will be dead. Also from day one my air bag light would flash when the parking brake was released. Hasn't done it since. Hope it will help someone....it really sucks being stranded with a new vehicle that won't run. I'll place a solid bet if you have the issue and squeeze the plug together you truck will run.
#90
02-28-2020, 04:28 PM