Replaced fuel pump in a Chevy 1999 K1500 pickup (extended cab), still won't start. Ground appears good doesn't fire. Has anybody come across this, and how do you fix it?

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I had two of the five lines done so I used my simple markings to determine the other three lines and just today (July 23) completed the work.

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fuel pump IS NOT in the tank, it is between the turbo & the filter housing in the valley

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I have worked on quite a few chevys and can tell you what I've found to work with this type of problem. When you replaced the starter, did you tug on the fusable links that connect to the solenoid to see if one of them was burned and loosing power? There are two or three short pieces of fusable link attached to wires that power the fuse block and other electrical circuits at the solenoid / battery cable connection that will stretch when you pull on them if they are bad. If they are, then you won't have power for the fuel pump, relays and other circuits to make the truck start.
If one is bad, cut the wire behind the link connection and put a **** splice and piece of wire on it with a ring terminal,and connect it to the solenoid. Turn on the ignition and listen for the fuel pump to buzz. The fuel pump is controled by the ECM and makes the pump turn on for 3 seconds to prime the system with fuel before starting the engine. One of the wires on the solenoid with a fusable link does this. If this works, your done.
If the truck won't crank when you try to start it, check the "S" terminal for power with a test light while someone turns the key. The "S" terminal on the solenoid comes from the ignition switch, to the neutral/backup / clutch switch to the starter. You'll have to check every point in between these for power to locate the problem. One bad connection or part will keep the starter from getting power to the "S" terminal. You can use a screw driver to test if the starter is working by touching the two terminals together.
While your under the truck, look at all the wires in the harness for any chafing or rubing, I once found a wire that rubbed through and was causing the problem.
Hope this helps, Craig

William Robinson

• 1547 Answers
• Posted on Dec 20, 2010

SOURCE: My son has a 1996

have you checked for spark with vehicle off take a plug out leave it in plug wire but remove it from engine have another person turn key you should see spark from plug on valve cover hold plug close to valve cover dont hold plug hold wire part of it if you dont have spark replace coil pack or distribrator did you bleed fuel line to get air out also before you do this try replaceing fuel pump relay fuse its under hood in the fuse box it might be blown but since you said its getting fuel to rail thats not it but since you said starting fluid starts it its got to do with the fuel because its not fire because it started up so its in the fuel part replace fuel pump relay its easy to do its under hood its marked on the inside cover which one it is did yous bleed the fuel lines if not its also easy on your fuel rail underhood have another turn key but not start truck as they turn key you open bleeder screw then close screw have them turn key off have them do this a few times until you have a steady stream of fuel good luck if this helps give me a good rating if you need any more info just write me back