fuel delivery system
Thread Starter
|
New User
Joined: Sep 2004
Posts: 2
Likes: 0
fuel delivery system
Hello,
My name is Tim and this is my first post.
1994 Ranger 4.0L, 5spd manual transmission, 2wd.
And my freshly installed fuel pump is not coming on.
It all started when I had a leaking fuel fill tube that prompted me to pull the bed and replace when my truck wouldn't start. While the bed was off I also replaced the fuel pump. I jumped the old pump to a battery and found that it ran. So I deduced that it was not getting power. I figured that it might be the inertia switch. I'm not sure if I found it or not. There is a small metal canister with a clear vaccuum tube running from the bottom. There also is an arm extending from the top of the cannister( the can is about the size of a can of blue diamond almonds) which connects to some sort of counter balance plate that I could feel with my hand under the dash after the glove box had been removed. I assumed this was the fuel pump cut-off or inertia switch. When I pulled the small clear tube from off the bottom it hissed, releasing air pressure. I was trying to check if the cut-off switch was bad or not. When I pushed the arm from the top down and held the nozzle where the vaccuum tube connects shut, I found that this thing was holding vaccuum. The puzzling thing is that all that I read about the inertia swith said there is an electrical connecter. However, I couldn't find and electrical connections. Are the wires for the swith somewhere else? And at this point I'm not 100% sure I'm even dealing with the shut off device. My other ideas for the fuel pump not turning on are the fuel pump relay,the ignition swith on the steering column(which is all messed up and will start without the key sometimes, and spins around endlessly), or the eec relay. I also read about some connctions under the cab.
Any order of diagnosis or other bright ideas will be greatly appreciated!!!!!
Happy wrenchin!
-Tim
My name is Tim and this is my first post.
1994 Ranger 4.0L, 5spd manual transmission, 2wd.
And my freshly installed fuel pump is not coming on.
It all started when I had a leaking fuel fill tube that prompted me to pull the bed and replace when my truck wouldn't start. While the bed was off I also replaced the fuel pump. I jumped the old pump to a battery and found that it ran. So I deduced that it was not getting power. I figured that it might be the inertia switch. I'm not sure if I found it or not. There is a small metal canister with a clear vaccuum tube running from the bottom. There also is an arm extending from the top of the cannister( the can is about the size of a can of blue diamond almonds) which connects to some sort of counter balance plate that I could feel with my hand under the dash after the glove box had been removed. I assumed this was the fuel pump cut-off or inertia switch. When I pulled the small clear tube from off the bottom it hissed, releasing air pressure. I was trying to check if the cut-off switch was bad or not. When I pushed the arm from the top down and held the nozzle where the vaccuum tube connects shut, I found that this thing was holding vaccuum. The puzzling thing is that all that I read about the inertia swith said there is an electrical connecter. However, I couldn't find and electrical connections. Are the wires for the swith somewhere else? And at this point I'm not 100% sure I'm even dealing with the shut off device. My other ideas for the fuel pump not turning on are the fuel pump relay,the ignition swith on the steering column(which is all messed up and will start without the key sometimes, and spins around endlessly), or the eec relay. I also read about some connctions under the cab.
Any order of diagnosis or other bright ideas will be greatly appreciated!!!!!
Happy wrenchin!
-Tim
Post Fiend
Joined: Jan 2003
Posts: 9,748
Likes: 16
From: Connecticut
Hi Tim, welcome to FTE!
Well for starters, as far as I know, the inertia fuel shutoff switch on your '94 Ranger is located on the toe-board to the right of the transmission hump. Might be worth checking that area.
The inertia switch assembly is indeed electrical in nature, and there is a "reset" button on it.
The FP relay going bad is high on the list of possible suspects, as well.Have you checked it and the related fuse(s)?
Well for starters, as far as I know, the inertia fuel shutoff switch on your '94 Ranger is located on the toe-board to the right of the transmission hump. Might be worth checking that area.
The inertia switch assembly is indeed electrical in nature, and there is a "reset" button on it.
The FP relay going bad is high on the list of possible suspects, as well.Have you checked it and the related fuse(s)?
