For fuel pump on 2000 chevy truck 3500 need to check wiring on the harness

pat murray

• 293 Answers
• Posted on Nov 16, 2008

SOURCE: 1997 k1500 just quit and will not start

you should have power on the tan wire for about 5 seconds with key on try to cycle key on for 5 sec off for 10 sec if no power chehave power on both sides of fuseck ecm 1 10 amp fuse if you check ecm b fuse if that is ok check for power on the orange wire and power on the green with white wire on fuel pump relay if you have power on those check for power on the grey wire out to fuel pump if you have power on grey wire you have a bad wire from the grey to the tan wire some where in the harness hope this helps

SOURCE: 2000 chevy blazer, truck cranks

Does your battery go dead?

SOURCE: 94 dodge ram 1500 5.2 replaced fuel pump still no

U NEED TO CHECK THE FUEL PUMP AND AURO SHUT DOWN RELAY.THEY ARE IN THE UNDERHOOD FUES & RELAY CENTER.U CAN SWITCH THEM 1 AT A TIME WITH A/C RELAY.IF THAT DOES NOT WORK U MAY HAVE A PROBLEM WITH THE PCM

SOURCE: Need engine harness wiring diagram for 2001 chevy truck V8

The Best diagram you can get is at alldatadiy.com it has the sections and locations and color of wires with pictures.

SOURCE: Chevy 3500 Express truck. fuel problem?

IF YOU GOT CYLINDER MISFIRE.OR OPEN FUEL INJECTOR.THAT WILL CAUSE THE PCM TO ENRICHEN FUEL MIXTURE.TO ADJUST TO DEAD CYLINDER.WHICH ACT AS A LARGE VACUUM LEAK.THATS WHY YOUR EXHAUST TAIL PIPES HAS A RAW FUEL SMELL AND WHITE SMOKES.