1987 5KCSTQ, fuel pump hints requested

[John Forbes]

Well you could try jumping it right off of a battery. Go in the trunk with a
charged battery and 2 test leads, and unplug the wires fron the sending
unit/tank top. Then hook the test leads to the battery and to the pump and
'bump' it back and forth by cliping the test leads onto the proper pins for
the pump, then hook up the test lead ground to the battery ground and tap
the pos test lead on the battery positive. Tap it like 10 times, then
reverse the wires (pump ground to bat pos) and tap it a few times. If the
pump is seised this should free it up after a little while. If it doesnt
then you'll have to pull the pump out of the tank and fill every orafice
with your favorite penatrating oil (I like PB Blaster, its a billion times
better the WD-40) and repeat the bumping process.

I did this on the pump in my first '86 5ktq that wouldnt start when I bought
it, though with the pump out of the tank and it worked perfectly.

-Cody
2x '86 5ktq
'87 5ktq
'88 804cyl

----- Original Message -----
From: <MHLIGGINS at aol.com>
To: <quattro at audifans.com>
Sent: Wednesday, August 27, 2003 3:51 PM
Subject: 1987 5KCSTQ, fuel pump hints requested


>
>        The car has been sitting for a while. If I put raw fuel (two cycle
mix
> to insure lubrication) in the intake the engine runs. I did dump some
fresh
> fuel (with Techron added) into the tank to make sure that whatever comes
to the
> engine would actually be volatile enough to burn.
>        But the fuel pump doesn't pump. I have jumpered the FPR to try to
> force it to cycle. I can hear the switches make connection, but that's all
that
> happens. I've taken the fuel line loose at the fuel filter just to be
sure. No
> fuel.
>        Are there any quick fixes to "encourage" the pump to do what it's
> supposed to do? I'd prefer to try the work-arounds before having to dig
into the
> tank and drag that thing out of there to tinker with it.
>
>        Thanks.
>        --ml
>