Question about 1991 Toyota Pickup

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Have no power to the fuel pump. Truck will not start. what to do next?

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1. make sure you really have no fuel delivery. open a line convenient for you as in cold start injector or fuel filter, disconnect ignition coil lead and crank away a bit to make sure you're not getting fuel.
2. I assume you're getting spark.
3. check efi fuse in main relay box passenger side inside right fender. if good check that you have juice at the Co relay hidden in the passenger kick plate. its the white-red terminalwhich delivers the current. the Circuit opening relay is really the main enchilada for getting the pump up and adam.
4. still no go. you have to address the Co relay itself. test terminals with ohm tester. also you can jump wire the Bp fP terminals in the diagnostic connector on the side of the main relay and see if the pump goes.
5. and lastly it might be the pump itself

Posted on Jul 15, 2009

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  • 87 Answers

Check the fuses and relays.

Posted on Jun 17, 2009

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Posted on Jan 02, 2017

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SOURCE: truck starts, dies. truck runs good some days,bad the next

I had the same problem with My 1990 F150 300 6cylinder 4x4.....I cahnged all the same things you did, finally I sprayed a can of Gumout through the throttle body and it worked and ran great. Now I add fuel injector cleaner to the gas and a regular clean with the gumout and the problem has'nt come back. Good Luck to you and hope it works!

Posted on Oct 06, 2008

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SOURCE: No power to fuel pump.

well your fuel filter is located on the passenger side of the firewall underneath the hood..also on the same side is the relay box check your fuel pump relay..

Posted on Dec 04, 2008

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SOURCE: new fuel pump replaced on 2000 chevy s-10 blazer, no fuel

BAD FUEL PUMP


Posted on Apr 19, 2009

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SOURCE: 99 chevy blazer start truck fine then next time go

Fuel pump is overheating (means it is failing) replace it.

Posted on Apr 28, 2009

B-Roosky
  • 59 Answers

SOURCE: i am not getting power to my fuel pump

on a lot of ford products there is a switch that goes from the fuel pump to the inside of one of the bedsides.
what this is, is a shock switch that turns the fuel pump off if it absorbs a hit.
its a really dumb safety feature but its effective.
there is a red button on it that u have to press to make it active again.
sometimes they just trip for no reason.

Posted on Jan 11, 2010

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