Malchi
Well-Known Member
- Joined
- August 6, 2010
- Messages
- 103
- Reaction score
- 1
- City, State
- Ontario, California
- Year, Model & Trim Level
- '91 X 4x4
Ok, here's my scenario.
91 Explorer has been having trouble with fuel pump not working. Usually if I keep trying it will work after a bit. Finally just quit altogether. I just replaced fuel pump (cut hole under seat method worked absolutely wonderful!) since I know fuel gauge was out and it seemed the check valve was bad as well. After replaced fuel pump, truck started right up and worked great for a week, maybe.
Then it started having same trouble again. Yesterday it just quit altogether. Parked it for a bit and when I came back it would not start. So, after researching on this forum, I found to check for 12v at pump, only getting just a little under 8v. Checked at inertia switch, only about 8v going to switch.
PCM I assume?
Anyhow, in my distress of needing to get truck home I decided to pull a fuse out of fuse panel ( chose one that only works with key on) , took a piece of wire, put a spade on end of it and plugged that into the fuse panel, then cut the wire coming from the inertia switch and spliced wire into it. Then, when I turned on the key, fuel pump came on as well. Truck started right up. Drove it home and when I turned off key, pump turned off. But, I unplugged it just in case.
So, my question is this. First, any idea what the problem is? ECM? Or what? Also, can I just hook this up permanently? Or, at least till I find the problem and fix it? I need this as my daily driver for work.
Any help would be greatly appreciated.
91 Explorer has been having trouble with fuel pump not working. Usually if I keep trying it will work after a bit. Finally just quit altogether. I just replaced fuel pump (cut hole under seat method worked absolutely wonderful!) since I know fuel gauge was out and it seemed the check valve was bad as well. After replaced fuel pump, truck started right up and worked great for a week, maybe.
Then it started having same trouble again. Yesterday it just quit altogether. Parked it for a bit and when I came back it would not start. So, after researching on this forum, I found to check for 12v at pump, only getting just a little under 8v. Checked at inertia switch, only about 8v going to switch.
PCM I assume?
Anyhow, in my distress of needing to get truck home I decided to pull a fuse out of fuse panel ( chose one that only works with key on) , took a piece of wire, put a spade on end of it and plugged that into the fuse panel, then cut the wire coming from the inertia switch and spliced wire into it. Then, when I turned on the key, fuel pump came on as well. Truck started right up. Drove it home and when I turned off key, pump turned off. But, I unplugged it just in case.
So, my question is this. First, any idea what the problem is? ECM? Or what? Also, can I just hook this up permanently? Or, at least till I find the problem and fix it? I need this as my daily driver for work.
Any help would be greatly appreciated.