Resurrecting an '86 5KCSTQ

[John Cody Forbes]

I misread the first message and thought you said you CAN hear the pump, my 
apologies. The pump is likely to be frozen. Check for power across the two 
larger wires at the 4-pin connector on the top of the fuel tank lid. If 
there is power there and the pump doesn't run you have a frozen or failed 
pump.

My usual process to free the pump is to remove the pump and soak it in 
solvent over night. Then using a car battery and some jumper wires apply 
pulses of power. You'll want to reverse the polarity periodically to help 
try to jar the pump free. Pulsing it done by connecting the wires safely to 
the pump terminals a few feet away from your battery so sparks cant get near 
the pump, holding one to the battery positive terminal, and tap the other 
wire on the battery negative like you are sending Morse code. You'll notice 
the pump making a "thud" as if it is trying to turn. Eventually you'll hear 
it change as the pump starts to break free, and finally the pump will start 
to spin and will spit out some crud. Please be very very away of the 
potential fire risk that your fuel/solvent soaked pump will present and only 
follow this procedure if you are comfortable and confident that you have 
minimized all risk and have an extinguisher nearby. If you aren't 
comfortable with it you should just buy a new pump and I'll buy the frozen 
pump from you ;-).

-Cody Forbes


-----Original Message----- 
From: Alex Kowalski
Sent: Friday, July 05, 2013 7:45 PM
To: Quattro List
Subject: Re: Resurrecting an '86 5KCSTQ

And yes I put 2 gallons of Premium in the tank before cranking the engine.
Zilch.
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