Can Anyone give me directions to changing a fuel pump on a 1997 GMC JIMMY 4x4 4 door?
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epiphaknee
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Remove as much gas as possible before starting.
Disconnect the battery terminals.
Remove gas tank shield.
Remove all electrical connections from the top of the sending unit/fuel pump.
Remove hoses from fuel filler and gas tank. Remove any and all vent hoses too.
Before removing or loosening either of the bands holding the tank in place use a level to measure the attitude of the tank. Also, eyeball, the position of your tank relative to your work surface. You'll want to replicate this attitude to ensure proper fuel pressure gauge readings after the new fuel pump is in place.
Rotate the cam lock on the top of the tank to remove the fuel pump - sending unit. Use a large screwdriver and hammer and gently rotate the lock by tapping not hitting hard. Replace the cam lock seal upon install.
Gently remove the fuel pump and sending unit and place on a clean cloth on top of the tank to assist in removing the electrical connections. Inspect and then gently remove the electrical connections from the SU-FP.
I think a 1997 has an integrated fuel pump and sending unit.
Replace the fuel filter, strainer, fuel pump-sending unit and cam seal. If possible drop the tank and flush all debris out of the tank. Also replace the wiring from the FP-SU. This will typically come with your new FP-SU as might the strainer.
Intallation is the reverse of removal. Make sure the ground for the FP-SU is connected back to the frame or the FP-SU will NOT work. This is the most overlooked step. Test the FP-SU while suspended in the tank but before total install to make sure it primes once the key is turned to just before start.
That's about it. 2.5 hours maybe 4.0 hours the first time.
Disconnect the battery terminals.
Remove gas tank shield.
Remove all electrical connections from the top of the sending unit/fuel pump.
Remove hoses from fuel filler and gas tank. Remove any and all vent hoses too.
Before removing or loosening either of the bands holding the tank in place use a level to measure the attitude of the tank. Also, eyeball, the position of your tank relative to your work surface. You'll want to replicate this attitude to ensure proper fuel pressure gauge readings after the new fuel pump is in place.
Rotate the cam lock on the top of the tank to remove the fuel pump - sending unit. Use a large screwdriver and hammer and gently rotate the lock by tapping not hitting hard. Replace the cam lock seal upon install.
Gently remove the fuel pump and sending unit and place on a clean cloth on top of the tank to assist in removing the electrical connections. Inspect and then gently remove the electrical connections from the SU-FP.
I think a 1997 has an integrated fuel pump and sending unit.
Replace the fuel filter, strainer, fuel pump-sending unit and cam seal. If possible drop the tank and flush all debris out of the tank. Also replace the wiring from the FP-SU. This will typically come with your new FP-SU as might the strainer.
Intallation is the reverse of removal. Make sure the ground for the FP-SU is connected back to the frame or the FP-SU will NOT work. This is the most overlooked step. Test the FP-SU while suspended in the tank but before total install to make sure it primes once the key is turned to just before start.
That's about it. 2.5 hours maybe 4.0 hours the first time.
Molson02536
New member
Here is link with pictures, good luck and replace the wire leads also from the sending unit to the frame. Good time to also inspect your fuel line on the frame, it's common to corrode from the nylon clip right under the drivers side under the rear doors where the snow accumulates through out the winter.
You can replace the lines with nylon fuel lines to ensure no more corrosion.
http://www.gm-trucks.com/forums/index.php?autocom=ibwiki&cmd=article&id=403
http://www.fmsiinc.com/index.html