Question about Toyota Tercel

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1992 Toyota Tercel. Fuel pump removed to drain tank The fuel pump does work when power is applied directly to the pump. I have uninterrupted continuity though the fuel pump harness to the pump. I do not seem to have any voltage coming back to the pump when connected and the key is in the run position. I do not know where the relays or fuses are located in order to check them. All wiring harness to the pump are intact and appear to be in good original condition. Any Ideas as to what I should be doing to trace the problem will be greatly appreciated. Thank you- Tom

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6ya6ya
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Posted on Jan 02, 2017

  • 131 Answers

SOURCE: 1986 Accord - fuel pump relay problem - HELP!

Just replace a fuel pump myself and had the same problem. I found that the wires going to the pump inside the tank where grounded out. While setting the pump in the tank I got the wires pinched between ths tank and the cover. Hope this helps.

Posted on Jul 05, 2008

  • 136 Answers

SOURCE: Ranger fuel problem

There is a fuel cutoff switch on the passengerside floorboard, towards the right kick pannel, there will be a little red button on top of it, check to see if that is tripped, also when you turn the key to the on position listen to see if you hear the fuel pump prime up, just a short buzzing noise from the underside of the cab, if you dont hear it, that is a good indicator that your fuel pump maybe bad, i would also check the pressure at the fuel rail, chrome or black colored bar located near the fuel injectors.

Posted on May 05, 2009

  • 230 Answers

SOURCE: No fuel or power to fuel pump.

If the relay is not getting ground signal to turn on then it sounds like a problem with the ECU this is fed from there. Commonly dry solder joints inside the ECU can cause this problem, they have a tendency to crack around the transistors and heavier load components and also components that are subject to mechanical vibration. He said that the fuel pump relay is located in the kick panel and the ECU is next to this. Id take out the ECU and remove the main circuit board and examine for dry solder joints. If you don't know what they look like its somthing like this http://www.tegger.com/hondafaq/mainrelayoperation/dry-joint_small.jpg

Hope this helps

Posted on May 08, 2009

daves944
  • 1050 Answers

SOURCE: Buick Regal dying

You have a problem in the fuel pump relay circuit for sure then. I'm betting the relay, but it could be that dropping resistor.

Posted on May 11, 2009

  • 1 Answer

SOURCE: Fuel pump problems

you have a shut off button in the trunk find it turn it off and turn it back on

Posted on Nov 25, 2009

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1 Answer

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If the vehicle has an inertia fuel pump shut off, details of the location will be in the vehicle handbook.
Some early cars didn't have the inertia switch and the fuel pump relay relied on a connection to the oil pressure warning light or ignition light or similar so if the engine stopped so did the fuel pump.

Most inertia switches are fitted behind the passenger footwell plastic kick panel or visibly in the engine compartment. A few early examples were fitted in the spare wheel well.

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