Fuel pump sanity check
03-10-2020, 05:15 PM
#1
Fuel pump sanity check
1992 22RE 4x4 5 speed.
Just put it back together after spending about 5 years not running by previous owner. Threw a couple gallons of fresh gas in it.
Engine has spark and compression but no fuel (spark plugs are bone dry after many many attempts at starting)
If I manually manipulate the flapper in the AFM, I can hear the relay under the dash click.
Furthermore, if I jump the Fp and +B jumpers while attempting to start the truck, the wire sure did get pretty warm, indicating current going across.
Also, I pulled the round connector apart at the fuel pump itself and tested it with a volt meter (using both wires in the plug, not grounding to the body) and got 12v when manipulating the AFM flap with the ignition in the ON position.
Furthermore, I never hear the pump running. I used a mechanics stethoscope on the tank while my wife pushed in the AFM flapper with the ignition in the ON position. Silence.
Safe to say I've exhausted troubleshooting and should drop the tank to pull the pump?
Just put it back together after spending about 5 years not running by previous owner. Threw a couple gallons of fresh gas in it.
Engine has spark and compression but no fuel (spark plugs are bone dry after many many attempts at starting)
If I manually manipulate the flapper in the AFM, I can hear the relay under the dash click.
Furthermore, if I jump the Fp and +B jumpers while attempting to start the truck, the wire sure did get pretty warm, indicating current going across.
Also, I pulled the round connector apart at the fuel pump itself and tested it with a volt meter (using both wires in the plug, not grounding to the body) and got 12v when manipulating the AFM flap with the ignition in the ON position.
Furthermore, I never hear the pump running. I used a mechanics stethoscope on the tank while my wife pushed in the AFM flapper with the ignition in the ON position. Silence.
Safe to say I've exhausted troubleshooting and should drop the tank to pull the pump?
03-10-2020, 05:27 PM
#2
1992 22RE 4x4 5 speed.
Just put it back together after spending about 5 years not running by previous owner. Threw a couple gallons of fresh gas in it.
Engine has spark and compression but no fuel (spark plugs are bone dry after many many attempts at starting)
If I manually manipulate the flapper in the AFM, I can hear the relay under the dash click.
Furthermore, if I jump the Fp and +B jumpers while attempting to start the truck, the wire sure did get pretty warm, indicating current going across.
Also, I pulled the round connector apart at the fuel pump itself and tested it with a volt meter (using both wires in the plug, not grounding to the body) and got 12v when manipulating the AFM flap with the ignition in the ON position.
Furthermore, I never hear the pump running. I used a mechanics stethoscope on the tank while my wife pushed in the AFM flapper with the ignition in the ON position. Silence.
Safe to say I've exhausted troubleshooting and should drop the tank to pull the pump?
Just put it back together after spending about 5 years not running by previous owner. Threw a couple gallons of fresh gas in it.
Engine has spark and compression but no fuel (spark plugs are bone dry after many many attempts at starting)
If I manually manipulate the flapper in the AFM, I can hear the relay under the dash click.
Furthermore, if I jump the Fp and +B jumpers while attempting to start the truck, the wire sure did get pretty warm, indicating current going across.
Also, I pulled the round connector apart at the fuel pump itself and tested it with a volt meter (using both wires in the plug, not grounding to the body) and got 12v when manipulating the AFM flap with the ignition in the ON position.
Furthermore, I never hear the pump running. I used a mechanics stethoscope on the tank while my wife pushed in the AFM flapper with the ignition in the ON position. Silence.
Safe to say I've exhausted troubleshooting and should drop the tank to pull the pump?
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supersaiyan93 (03-12-2020)
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supersaiyan93 (03-12-2020)
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supersaiyan93 (03-12-2020)
03-11-2020, 02:28 PM
#5
YT Community Team
If I looked it up correctly you can get a Denso pump for $73.00 on Amazon. Maybe less if you search around. Not bad.
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supersaiyan93 (03-12-2020)
03-12-2020, 06:54 AM
#6
Registered User
Here's the fuel pump on Amazon, but it doesn't include the "sock" filter:
Here's the filter:
Same pump on Rock Auto but includes the filter(reference part # DENSO 9500100): https://www.rockauto.com/en/catalog/...fuel+pump,6256
Amazon over $50 order has free shipping; Rock Auto you pay shipping. Your choice. There are cheaper fuel pumps out there but the Denso is a Toyota OEM part. I wouldn't want to do this job again in a few years because the cheap pump failed.
Here's the filter:
Same pump on Rock Auto but includes the filter(reference part # DENSO 9500100): https://www.rockauto.com/en/catalog/...fuel+pump,6256
Amazon over $50 order has free shipping; Rock Auto you pay shipping. Your choice. There are cheaper fuel pumps out there but the Denso is a Toyota OEM part. I wouldn't want to do this job again in a few years because the cheap pump failed.
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supersaiyan93 (03-12-2020)
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03-14-2020, 12:18 PM
#10
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Hmmm. Gasoline shouldn't rust iron like that. I suspect that at some point you had a bunch of water in there. A replacement tank will resolve any possible issue due to the tank (in the rust belt, tanks can rust through at the top). If you keep the fill pipe, take a look at for any possible holes that could let in rain water. And replace the gas cap no matter what.
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old87yota (03-14-2020)
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