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Here's a wiring guide for the fuel pump on a 2000 Cadillac Deville:
1. Remove the fuel tank and access the fuel pump module.
2. Disconnect the electrical connector from the top of the fuel pump module.
3. Locate the wiring harness that runs from the fuel pump module to the car's electrical system.
4. Cut the wires on the old fuel pump module connector, leaving enough wire to splice the new connector onto.
5. Connect the black wire from the new fuel pump module connector to the black wire in the car's wiring harness.
6. Connect the purple wire from the new fuel pump module connector to the purple wire in the car's wiring harness.
7. Connect the gray wire from the new fuel pump module connector to the gray wire in the car's wiring harness.
8. Connect the black/white wire from the new fuel pump module connector to the black/white wire in the car's wiring harness.
9. Connect the new fuel pump module electrical connector to the car's wiring harness connector.
10. Reinstall the fuel tank.
Note that it is important to follow the wiring guide carefully to ensure proper installation and avoid damaging the fuel pump or electrical system. If you are unsure about any step of the process, it is recommended to seek assistance from a professional mechanic or refer to the vehicle's service manual.
? 3:10
https://www.youtube.com/watch?v=FffdzqknP3k
Apr 20, 2012 - Uploaded by Airtex Pumps
This video is about how to install a new Airtex fuel pump module into some GM ... fuel pump and gas tank to a 98 internal fuel pump and gas tank on my truck 88 gmc. the wires are a little different. .... Check the power & ground at the pump. ... CHEVY SILVERADO FUEL PUMP CHANGE OUT.2500HD 2001.
? 13:54
https://www.youtube.com/watch?v=Q3ZiTsKCdO8
Feb 3, 2012 - Uploaded by ScannerDanner
2001 GMC 3500 8.1L engine with no fuel pressure. In this video I am showing how to test the fuel pump electrical circuit using atest light and scan tool. ... seconds on the ground wire. when i unplug the harness from the the fuel pump .... need help newfuel pump chevy venture 2004 runs for a few days then ...
You may have tripped the relay switch or blown a fuse.Can you hear the pump running when the Key is in the run position? If not, then check where you pluged in the new fuel pump wires to the wire harness, For propper voltage.If no voltage is pressent at the wire harness then you go back to the fuse pannels.Good Luck.
Disconnect battery, remove lower rear seat (you will see a metal plate bolted down with a wire harness), Unplug fuel pump wire harness, remove fuel pump retaining bolts, install new one. Make sure you are in a well ventilated area as this involves a flammable liquid. Make sure all windows and or doors in the vehicle is opened.
I doubt you have a fuel issue if you replaced the pump. Try this to bypass the fuel pump. Spray some quick start or brakle cleaner into the throttle body. If the car still does not start then the problem is ignition related, NOT fuel related. If it does start then go to mitcell1diy online , search. You can get all the diagnoses info there.
If your pump is running on 7vdc, you are not getting enough fuel pressure to sufficiently supply the engine with gas, and it will run rough, sputter, surge, backfire, all manner of unpleasant things. If this is the case, and you are reading 7vdc while the pump is connected, this could indicate a problem within the fuel pump or fuel pump electrical circuit. Turn the car off, unplug the fuel pump wire harness from the fuel pump, insert your voltmeter leads into the vehicle-to-fuel pump wire harness connector, then have a helper turn the key to "on." You will have two-three seconds before the computer senses no fuel pump return signal, and shuts off voltage to the fuel pump. Observe the voltage coming from the vehicle wire harness to the fuel pump connector, it should be 11-13vdc. If it is, and only drops to 7vdc when connected, there is a partial short in the wiring from the point the fuel pump plugs into the harness, or the pump just creates a large voltage drop. Every device causes a voltage drop while in use, but 5vdc is too much of a loss. Re-examine the fuel pump installation, and make sure there are no obstructions over the fuel pump inlet, and that the wire harness inside the tank is okay.
It's common for the wire harness from the pump to the frame to go bad when the fuel pump is replaced. The harness is around $15.00 and should be replaced the same time the fuel pump is replaced. If you can get to the wire harness to move it around and see if the fuel pump would start to work, then you know it's the wire harness and you can also disconnect the wire harness at the frame to check for 12v. Food for thought also, was the fuel filter replaced shortly after the fuel pump??? It may have picked up dirt that got in the gas tank and is not to dirty to let fuel flow through. Good luck and keep me posted.
I have a silhouette and it had the same problem
Follow the fuel pump wiring harness to where it plugs into the floor of the van--pull the connectors apart--they will probably be corroded, and you will possibly have to change both wiring harnesses or connectors.
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