Can't figure it out
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New User
Joined: Apr 2003
Posts: 13
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Can't figure it out
I have a 91 ford bronco with a 351. it all started when i was driving on the highway and i stepped on the gas to downshift and the minute i downshifted the whole truck just shut off. I could only get the motor to turn but not start. I figured out that the pump would not turn on. When i got it towed back the truck started right up. I thought it was the fuel pump so i replaced it. but that didnt' solve the problem. everytime it died the pump wont' turn on. I thought it was the pump relay and i replaced it. that didn't work either. i had the pressure checked and it was fine and had some of the ignition parts tested and they were fine. could it be the computer or something. Please help me!!
Elder User
Joined: Apr 2002
Posts: 813
Likes: 0
From: NJ
Can't figure it out
a few years back i had a ranger that did what you describe, it turned out to be the roll over switch. it had crapped up internally and made contact sometimes oand some times it would not. i removed the switch and jumped it out to test it and it was bad ,of course you dont leave it jumped out or during a accident the pump could continue to run and dump fuel all over the place. this would be a very dangerous situation
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Can't figure it out
Just put a jumper wire across the connector, but be sure it's at least as heavy as the truck's wires.
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Junior User
Joined: Jan 2003
Posts: 92
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Can't figure it out
Where is the inertia switch located on a 90 XLT? I've had similar problems, and I'd like to check it out before I go after the fuel pump.
Thanks!
Casper
Thanks!
Casper
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Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Can't figure it out
On the older EFIs (like '84-88), it was directly in front of the clutch pedal location. I don't know what year it happened, but eventually (by '92) it moved to the R kick panel immediately below the dash under the glove box.
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