Question about 1993 Lexus Es 300

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No power to the fuel pump. Fuses seem to be ok. are there any hidden fuses that we maybe missing?

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Much more likely is administrative causes. The purpose is to NOT pump fuel after an accident, so no fuel pump on at all times. Typically requires oil pressure or computer control to feed power to the pump. You really need to get a shop manual to diagnose.

Posted on Aug 21, 2010


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1 Answer

Fuel pump issues

Did you test the fuses with a multimeter, or just visually inspect them? Fuses can fail without looking like they have. Or did you replace every fuse for the fuel pump system?

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Relay seems ok ??
Do you have power and ground at the fuel pump plug where it goes into the gas tank ?

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Get a test light and test the wires going to it ground one end and see if you have power at the pump. If not do the same at the fuses so where you are not geting the power.

Aug 19, 2012 | 1998 Pontiac Grand Prix

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Ok this is going to sound stupid but I recently broke down in my 1988 jeep wrangler 4x4 I changed the fuel pump and sending unit not thinking that I had blown a fuse which I did lol now all is fixed except...

do you have a multimeter or a test light? check each fuse and make sure there is power on both ends.
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Sep 14, 2011 | Jeep Wrangler Cars & Trucks

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you have 2 electrical plugs...only one wire should have power(cant remember which one) if there is no power. then check the fuse if the fuse is ok...then check the relay by swapping relays they should be the same or at least work! if still doesn't work you might have to change the panel...where the fuses are!!!

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Engine turns but car wont start...fuel pump working fuses ok fuel pump relay ok battery fine...sounds like car has no fuel but has half a tank

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Jan 04, 2011 | 2001 Saab 9-3

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Fuel pump not running. maybe someone can tell me where the power to the fuel pump is so that i can test the pump to see if it works. or maybe the relay is bad. where would that be? thank you

disconnect plug at pump and put led test light across plug and check for a cicuit (using this method checks for power and earth circuits at same time) if there is a curcuit pump is shot,if no circiut you need to check to see which side is missing,no power check connections and fuses/relays,no earth check connections may be a kill switch aswell

May 15, 2010 | 1989 Chrysler LeBaron

3 Answers

No power to the fuel pump (used electrical circuit tester down at the pump) fuse blocks under hood seem ok 40 engine quit suddenly. spark ok.

Check the fuel pump relay which is under the hood behind the battery. You'll see 2 turn clips to remove the cover. It should be the 2nd relay as your looking at the car.

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1 Answer

No power to fuel pump

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