Did your F150 shut off while driving and won’t start no matter what you do? Trust me, you don’t need to do much to get the truck back up and running, keep reading this post for more details on the fixes.
Why Does F150 Die While Driving And Won’t Start?
If your F150 dies while driving and doesn’t start it could be due to a rusty fuel pump, damaged CAN wiring, or worn alternator bushing. You can try replacing the rusty fuel pump module and alternator bushings. For the CAN issues, diagnose, secure damaged wiring, and ensure proper identification with a scanner.
Let’s start with more details on the reasons first and then we’ll see how to take care of them.
1. There’s Rust In Fuel Pump Module
The F150’s fuel pump module can rust over time from exposure to moisture and contaminants, especially in harsh conditions or with road salt.
This rust compromises the pump’s function, leading to fuel delivery problems. When the fuel pump fails, your truck can stall while driving and won’t start.
2. Controller Area Network System Issue
One noteworthy factor contributing to the intermittent stalling and subsequent failure to start in the Ford F150 is damage to the Controller Area Network (CAN) bus system, particularly the CAN low wire.
This damage disrupts communication between the Powertrain Control Module (PCM) and other crucial vehicle modules.
3. Alternator Bushings Worn Out
The alternator bushings can wear out in your F150, usually because of regular use and heat. As they deteriorate, the alternator struggles to generate enough power, leading to low voltage.
This can make your truck shut off while driving, and the lack of juice may prevent it from starting again.
How To Fix ford f150 That shuts off while driving?
So, how do you get your truck to start running again? Here are a couple of things you can try:
1. Replacing Rusty Fuel Pump Module
- Find the module under the truck, above the spare tire.
- Lower the spare tire for access.
- Replace the old, rusty module by disconnecting it.
- Attach the new module, using rubber bushings to prevent rust.
- Tighten the bolts to secure the new module.
- Check the connector to ensure a solid connection.
2. Diagnose And Fix The CAN Wiring
- See if you have cluster issues and scan for PCM errors.
- Verify communication issues.
- Check CAN bus readings for abnormalities.
- Inspect the wiring for damage and focus on rubbing areas.
- Test for an open circuit on CAN low; find the damage.
- Secure damaged wiring with tape.
- Twist and secure the wiring away from any spot that can cause friction with them.
- Check the scanner for proper identification post-repair.
- Clear codes are needed for successful communication and starting.
3. Replace The Bushings
Swapping these out is an easy job, so I won’t bother adding steps for them. If you need help, there are steps for replacement in your truck’s service manual.
Just get some for $8 only and give the replacement a go.
Wrapping Up
These solutions are designed for situations where your car unexpectedly comes to a stop while you’re driving and refuses to start again.
The reasons I’ve covered aren’t the only causes of an F150 failing to start, but dealing with them will prevent random roadside stalls.
So, go on then, give them a try—they’re just that small push your F150 is waiting for to start running again.
