YI have a 1991 Mitsubishi Montero v6 manual transmission, a few weeks ago I hit a small pot hole and the truck died, the engine would turn over but it would not start, I could not hear the fuel pump r
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Asked by Mdk007 May 08, 2015 at 10:45 AM about the 1991 Mitsubishi Montero LS 4WD

Question type: Maintenance & Repair

YI have a 1991 Mitsubishi Montero v6 manual transmission, a few weeks ago I hit a small
pot hole and the truck died, the engine would turn over but it would not start, I could not
hear the fuel pump running, it was low on fuel so I added more fuel to it, still would not
start I unplugged the fuel pump and tested for voltage, but there wasn't any voltage
coming through. Finally after a day of tinkering it started I don't know what I did or if the
computer reset or what, but it has ran perfect for three weeks. Then yesterday I was
drivin it down a dirt road and there was a small tree root that crossed the road and it
jarred the truck similar to the previous pot hole the truck died once again and again it will
not start, I have checked all connections in the wiring, took the battery cable off for the
computer to reset but no luck it still won't start I also checked the ignition fireing and there
is no spark and no fuel pump running. Does this truck have a saftey inertia switch
somewhere or can you tell me what else to try?

5 Answers
103,825

Reelin68 answered 9 years ago

The fuel pump voltage is supplied via a relay connected to the ECM, Which is located on the passenger side floor board / kick panel area.

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Mdk007 answered 9 years ago

Hey thank You, do you know it the Fuel pump relay has anything to do with the ignition fire?

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103,825

Reelin68 answered 9 years ago

The fuel pump relay has nothing to do with spark, only supplies power to the fuel pump.

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103,825

Reelin68 answered 9 years ago

If you hit a bump and lost fuel and spark, it sounds like you have a short or bad ground to your PCM. Here is a link that will help you test for possible causes. No expensive tools are needed.................................... http://easyautodiagnostics.com/mitsubishi/3.0L/ignition-system-tests-1

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Guru5HTL5 answered 6 years ago

look under your steering wheel remove the cover here is a wire harness that has big socket check for melted connection i solve mine i have 96 montero ls 3.0

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