Question about 1997 Chevrolet K1500
1997 k1500 truck was running and just quit. Truck will turn over but will not start. Replaced the fuel pump and relay and still will not start. Checked power to the fuel pump and the middle wire in the 3 wire plug is hot when key is on the other two are not. Checked fuses and they are good. Replaced the wire harness in the tank on the pump and still nothing. Reason for replacing the wire harness in the tank was that the two wires that go to the pump looked like they got hot and melted together. This also made one terminal on the pump get black and burned looking. Anybody have any ideas?
I had a similar problem when the hose came off the charcoal filter in the front left, had to purge the system by removing the green cap beside the cannister, and with the key turned on, pressed down on the valve to release the air. Started right up almost immediately.
Posted on Nov 28, 2008
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
Posted on Nov 16, 2008
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Posted on Jan 02, 2017
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