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1994 t100 fuel pump won't run. New pump, still won't run.

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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dr_layinlow
  • 60 Answers

SOURCE: Jeep won;t start..new fuel pump installed

try the fuel filter and make sure you have proper oil pressure!! Remeber if you have tried craking to many bad times then the plugs are going to be fouled out!! Means that they are going to be drowned with gas and need replacing!! Also make sure your fuel pump is coming on!! You should hear a hissin or a hummin noise back from the fuel tank!

Posted on Dec 10, 2008

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SOURCE: put in a new fuel pump car will run for awhile

either the pump has a short in it or you have a wire pinched somewhere. Unplug the pump. If the fuse does not blow then the shorts in the pump or wiring to it.

Posted on Nov 18, 2009

  • 56 Answers

SOURCE: Engine won''t stay running,already replaced fuel pump

try a new fuel filter as well if the pump can't get fuel to the motor it won't run. You may have crud in the tank too. you need to find out if the fuel is getting to the motor.

Posted on Feb 17, 2010

  • 8 Answers

SOURCE: fuel pump

Yuck, that sucks. best guess is malfunction in the body control module circut. factory anti theft uses ground circut disable to keep the car from running without the key. try disconnecting the negative battery cable, wait 10 min. and remove the BCM fuse and any fuse that is related to the vehicle security system. re-connect the battery and try it. if it runs the the fuel pump most likely has a ground issue that was overlooked during replacement.

Posted on Feb 28, 2010

  • 5317 Answers

SOURCE: fuel pump won't run unless engine is cranking, but won't start

Are you sure it's running when cranking? It should have come on when key turned on.
This is for camrys up to year '91. It may apply in your '95, also. Check the 7.5 amp ignition fuse and the 15 amp EFI fuse and the EFI main relay, all located in the fuse box next to your battery. There is also the circuit opening relay tied in to fuel pump operation. It is usually found under center of dash. It is usually not the problem, but it is part of the checks for fuel pump operation.
If your car has a " check connector" or "service connector" (also called a fuel pump check connector) under hood on driver's side near the firewall (a little 1 inch cube with a cap on it), then bridge terminals +B and Fp with a jumper wire. Turn key to on (don't start car). The pump should come on. Listen for fuel return noise from the fuel pressure regulator, and verify pressure in hose from the fuel filter. If nothing, check those fuses above. Here is how power runs to pump: Battery to 40 amp main fusible link-to 15 amp EFI fuse-to EFI main relay-to circuit opening relay-to fuel pump-to ground. Ignition switch and the computer (ECU) work the relays to pass power to pump. Hope this helps some, Randy. Good luck.

Posted on Nov 11, 2011

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No power to fuel pump fuse is good dont know what it cuold be


There should be fuel pump relay in your power distrubution box. Are you checking for power at the fuel pump or are you assuming it has no power because you have no fuel pressure?

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New fuel pump won't run


I have had bad pumps rite out of the box but dont assume its a bad pump check for power at the pump with a test lite remember the pump only has power for 10 or so seconds after key is on if vehicle dont start pump will lose power until key is turned off then you have to turn key back on best if done with 2 people

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Had friend put OBD diagnostics to it and error code indicated fuel pump ????? No code indicates replacing any part . Indicates testing ! pressure and flow testing , voltage drop testing the electrical circuit etc... There is a check valve in the fuel pump assembly that is suppose to keep pressure in the fuel lines an fuel rail . When the check valve goes bad allows fuel to drain back into the tank. Try turn the key on an off a few times to build up pressure . The PCM energizes the fuel pump relay for two seconds at key on .

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My truck is a 96 toyota t100.. The engine will turn over but not start.. Its not the battery no fuses are blown the only thing i could think of is the fuel pump any ideas?????


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1 Answer

Engine won''t stay running,already replaced fuel pump


try a new fuel filter as well if the pump can't get fuel to the motor it won't run. You may have crud in the tank too. you need to find out if the fuel is getting to the motor.

Feb 16, 2010 | 1994 GMC Sonoma

1 Answer

Jeep won;t start..new fuel pump installed


try the fuel filter and make sure you have proper oil pressure!! Remeber if you have tried craking to many bad times then the plugs are going to be fouled out!! Means that they are going to be drowned with gas and need replacing!! Also make sure your fuel pump is coming on!! You should hear a hissin or a hummin noise back from the fuel tank!

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