hal9000
New Member
- Joined
- February 18, 2006
- Messages
- 9
- Reaction score
- 0
- City, State
- Flagstaff, AZ
- Year, Model & Trim Level
- '01 Ranger 4.0L 4x4
Morning all,
This morning my '01 4.0L ranger wouldn't start. It worked fine at 9pm last night when I drove home. I've narrowed it down to no fuel. Here's what I've checked and found so far:
Inertia switch - OK
Fuel pump fuse - OK, 12V at fuse.
Fuel pump relay - OK, 12V on one pin with key off. With Key on, I'm getting 12V on 2 pins, and 6V on a third pin (sorry I don't know pin numbers). And with key on, I'm getting 6V at the inertia switch.
The only other item that might be worth considering is that it was about six degrees last night and is still in the very low teens, but honestly I don't think that's a factor.
Seems like I'm getting low voltage to the fuel pump. My only thoughts are either a bad ecu, or shorted fuel pump/fuel pump wiring.... But electric isn't my strong suit. I really need help on this, and hopefully soon.
I'm running in and out of my house trying to get my truck started so I can go to work, or at least drive the 12 mi to the closest auto parts store (I live out of town and alone) so please excuse if I don't respond right away.
This morning my '01 4.0L ranger wouldn't start. It worked fine at 9pm last night when I drove home. I've narrowed it down to no fuel. Here's what I've checked and found so far:
Inertia switch - OK
Fuel pump fuse - OK, 12V at fuse.
Fuel pump relay - OK, 12V on one pin with key off. With Key on, I'm getting 12V on 2 pins, and 6V on a third pin (sorry I don't know pin numbers). And with key on, I'm getting 6V at the inertia switch.
The only other item that might be worth considering is that it was about six degrees last night and is still in the very low teens, but honestly I don't think that's a factor.
Seems like I'm getting low voltage to the fuel pump. My only thoughts are either a bad ecu, or shorted fuel pump/fuel pump wiring.... But electric isn't my strong suit. I really need help on this, and hopefully soon.
I'm running in and out of my house trying to get my truck started so I can go to work, or at least drive the 12 mi to the closest auto parts store (I live out of town and alone) so please excuse if I don't respond right away.
