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cartech, ASE Certified Technician
Category: Saturn
Satisfied Customers: 3332
Experience:  25 year master tech and shop owner
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94 Saturn: 10 amp..Fuel pump relay is clicking..fuel pump harness

Resolved Question:

94 Saturn SL2 no power at 10 amp fuel pump fuse with key on. Fuel pump relay is clicking when key is energized. Verified no power at fuel pump harness with key on.
Submitted: 6 years ago.
Category: Saturn
Expert:  cartech replied 6 years ago.
if you put power to the pump will the car start and stay running
Customer: replied 6 years ago.
I dropped the tank and verified power was not getting to the pump. I was concerned that it was a connection issue, but removing the pump from tank and applying 12 V at two outer pins pump runs. The real problem I believe is 10 amp FP fuse with no power at either side of block. The FP relay is clicking but the fuel 10amp fuse still has no power to it.
Expert:  cartech replied 6 years ago.

if you take a jumper and put power to this fuse will the car run


Customer: replied 6 years ago.
I have to reinstall gas tank and pump assembly. I can try and see how it goes. How late will you be on
Expert:  cartech replied 6 years ago.
i will on until 10 eastern time with a break of about a half hour between 7:30 and 8
Customer: replied 6 years ago.
So if car runs, with power applied to harness than I have an open line right. Does the PCM provide power to FP circuit. Why would the fuse block have no power at you have a schematic of fuel pump circuit 1994 SL2
Expert:  cartech replied 6 years ago.

i will be able to provide you with all you need as soon as i know if the car runs when you apply power to the fuse this will tell me that all other circuits are working if you can do this and get back to me i will be glade to assist you


Customer: replied 6 years ago.
Ok, with power supplied to tan wire off fuel pump, car will run.
Expert:  cartech replied 6 years ago.
ok but i would like to know if you put the power at the fuse if it runs
Customer: replied 6 years ago.
ok, are you saying supply 12v to one side of that 10 amp fuse...I cant really get it from back. Are you suggesting trying to fuse tap and appy 12v to it
Expert:  cartech replied 6 years ago.
yes do a fuse tap to see if it runs
Customer: replied 6 years ago.
I applied jumper to one side of 10 amp fuse and smoke started to come out.
Expert:  cartech replied 6 years ago.
that doesn't sound good at all let me look at a couple things
Customer: replied 6 years ago.
ya, it made me nervous too.
Expert:  cartech replied 6 years ago.
you have a short here is the issue the under hood fuse box supplys the voltage to this fuse from the IP BATT FUSE 30A if this is good then you have a short in the fuse box that holds the fuel pump fuse or the wire that leads from the under hood box to the dash fuse box
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