need help
Thread Starter
|
New User
Joined: Mar 2022
Posts: 9
Likes: 0
Trending Topics
Fleet Mechanic
Joined: Jul 2019
Posts: 1,306
Likes: 310
You’re going to have to check for power at the harness itself. It’s possible the plug at the tank end is damaged. Maybe someone with a manual can chip in a schematic.
(That’s a lot of work to do if that’s all it turns out to be...)
(That’s a lot of work to do if that’s all it turns out to be...)
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
More Turbo
Joined: Sep 2017
Posts: 573
Likes: 145
Possibly, Do you have any codes ?
Although, if you have power at the pump it should prime. I don't think any other sensor is required for the pump to prime. Only need to turn on the ignition without starting. Someone will tell me if Im wrong.
Although, if you have power at the pump it should prime. I don't think any other sensor is required for the pump to prime. Only need to turn on the ignition without starting. Someone will tell me if Im wrong.
Logistics Pro
Joined: Jan 2001
Posts: 3,740
Likes: 37
From: Central NYS
Having power at the fuel pump connector at “key on” time is good.
But does the ground at the fuel pump connection get pulled to ground when the PCM cycles the pump for three seconds at “key on” time?
More Turbo
Joined: Sep 2017
Posts: 573
Likes: 145
So if it will start then the fuel pump is working. It primes and there must be fuel pressure. Might help to know what the fuel pressure readings are. Have you checked for codes ?
More Turbo
Joined: Sep 2017
Posts: 573
Likes: 145
The O2 sensor should not stop the engine from starting. Other sensors are apparently OK. It's important to eliminate the fuel pump as a variable.
Earlier, you indicated the fuel pump could not be heard cycling on. It would be very helpful to know if the fuel pump is consistently cycling on in the "key on" position.
If it is consistently cycling on, then it would be helpful to know what the fuel pressure is when the engine starts and when the engine doesn't start.
Earlier, you indicated the fuel pump could not be heard cycling on. It would be very helpful to know if the fuel pump is consistently cycling on in the "key on" position.
If it is consistently cycling on, then it would be helpful to know what the fuel pressure is when the engine starts and when the engine doesn't start.