How do you replace the fuel pump on a 1996 gmc suburban with a 42 gallon fuel cell?

ignition coil !!

auto choke device defective

The fuel pump module may not be bad. If you hear whirr that is good. Did you change both of the filters, the one on the fuel pump and the external filter (the one along the frame of the trunk). Also did you clean out the tank? If you did all that the next step would most likly point to fuel injectors.

Listen at the back by the fuel tank for a 1 to 2 second prime cycle whirr from the tank when turning the key to run position after it has been off for at least 10 seconds.
No noise means no running pump.
....and no noise means.....
Most likely it will need a new fuel pump....80%
Fuel pump relay 10%
Fuse or bad wiring 10%

The quick fix to get home is to crank the truck to create oil pressure to fire the pump......and while cranking WHACK the tank hard with a 2by4 or something like that....to jar the pump..... and it may start running long enough to get it somewhere to be repaired.
This works 60% of the time on a dead pump.

If you do hear a whirrr.....you most likely need a ignition module or crank or dist pickup.

For genuine parts
Visit http://www.autopartswarehouse.com/

Good luck.

Check out the autozone.com website. You can register for free and have access to an online repair manual for the vehicle. The steps for replacing the fuel pump may be available there. Hope this helped and best wishes.

It sounds like the fuel pump. You may still be able to hear the pump, but it needs to produce a lot of pressure. If it is weak it won't do the job.

It sounds like you have a defective fuel pump or a bad fuel pressure regulator.

But a Ford

check your cam or crank sensor,i think your sensor not getting signal