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1991 Toyota Pickup fuel problem

Tiny
DAL041224600
  • MEMBER
  • 1991 TOYOTA PICKUP
  • 4 CYL
  • 2WD
  • MANUAL
  • 198,000 MILES
My truck engine will start but won't run. I took the fuel pump out of tank and put the meter on it. I get nine volts to the pump when engine is cranking, but when I let off the key, volts goes to zero. I can spray starting fluid in the intake and the engine runs fine, but as soon as I stop spraying the engine stops. I hooked battery directly to the pump when I had it out and pump ran fine. Any ideas? Thanks, David.
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Tuesday, December 22nd, 2009 AT 7:26 PM

1 Reply

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
I would check what toyota calls the circuit open relay. This relay controls the fuel pump through the blue wire. Here is a pic of where it is located. Use you meter to see how the blue wire sends power as this is the one to the pump. Let me know what you find here.


https://www.2carpros.com/forum/automotive_pictures/249564_Graphic_171.jpg

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Wednesday, December 23rd, 2009 AT 9:56 AM

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