1992 silverado v6. I found my truck engine covered with insulation from the hood, and a bunch of wires chewed apart. I got the wires fixed but then the engine would turn over but not start. I found the wires in the fuel pump relay area to be chewed up. I removed the switch and got the wires fixed. Before I got it all back together I got sidetracked and had some extensive surgery, Going back to the chevy job I found I had forgotten where the switch and two of the wires were supposed to be attached. one wire is black and the other white. .
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Did you check the fuel pump relay in the fuse center under the hood? Maybe you blew the relay and really didn't need to replace the pump. Did you recheck all the wired connections with a DVOM? Never ever replace anything as important as a fuel pump with out double checking all connection and checking for voltage before putting it all back together. Hopefully you didn't put the gas tank back in yet. Oh and you can swap the relay with one of the others sitting next to it i the fuse center, just remember to switch it back when you're done.
1st, check to see if the fuel pump runs for 3 seconds when you turn the key to run (not start). If it doesn't run, then check the fuel pump fuse & relay in fuse box under hood, if OK, (spray starting fluid in the intake to see if engine fires at all), if no fire then look towards the ignition as the problem. There are 5 things need to start an engine: 1. fuel (delivered & pressure), 2. air, 3. spark (distributor/ignition module or pickup coil), 4. rotation & timing, 5. compression. any of these that are wrong or not there, the engine fails.
check all ur fuses for continuity first, then u can also try to swap out ur fuel pump relay with another relay that looks jus like it, be sure to use a relay like for ur horn or ac relay something that wont affect necessary or direct engine circuits like for ex. an ecm fuse or bcm fuse. if fuses r good an swappin relays wont work, next is to trace bak from fuel pump ur wires an possibly keep back probing to see if u have a broken wire from relay box to pump . good luck hope this was helpful . in ur fusebox ur fuelpump fuse should b labeled or easily found in fuse box legend, most likely on bak of fusebox cover....
Hello: The fuel pump relay is in the under hood fuse box, The location should be printed on the underside of the fuse box cover. The box should be on the drivers side under the hood. One other thing it could be is burnt/heated terminals on the connector from the truck wiring to the fuel pump harness. Also check the fuse for the fuel pump (20amp) in the same fuse box.
It could very well be your problem. What you have to do is unwrap the bundle and trace that wire back until you find where it comes from or it stops looking melted part way through the bundle then look at all the other wires close to that spot for burnt spots or insulation worn off and cover them with electrical tape. Cut the burnt wire off and replace it with one the same size,making sure you tape up the splice, and run it back to the engine where it started.
If it goes back to a fuse or switch check them out to make sure they are good. A fuse could have burned out when the wire overheated or a switch could be bad and made it burn. Hope this helps.
The fuel pump is located under the back seat on the passenger side. You will find an access cover and will need to remove the screws. You should be able to listen for the pump while someone cranks the car. Also I believe there is a large green w/ blue trace wire and an equally large brown wire at the connector. Check for battery voltage across the two wires. The fuse for the pump should be in the fuse panel under the hood.
fuel filter? how about power to the fuel pump,loose ground wire to chasis? wiring harness? terminals clean at point of connection?did you check the fuel pump relay? Relay is located in electrical center under the hood on the driver side.relay and fuse legend will be on bottom side of cover, you sould be able to switch with another relay that you know works, ie: switch horn relay with fuel pump relay, honk horn to insure both relays are working when either relay is inserted into horn slot. Do you by chance have the electrical schematic drawing for the fuel pump?
Lift the hood. Just below the screen, opposite side from battery, you'll see a plastic cover shielding the engine management, abs control box etc. If you search around there after removing the shield/ cover you will find a relay with a fuse plugged into the top of it. This is the pump / system relay.