1996 K1500 5.7 liter V8 where is the fuel pump primer connector located?

There isn't a dedicated "fuel pump primer connector" in the traditional sense on a 1996 K1500 with a 5.7L V8. These trucks rely on the fuel pump being primed by the engine's computer during the start sequence. There's no external switch or connector to manually prime the pump like some older vehicles had.

If you're having fuel delivery issues, you shouldn't try to force prime the pump with a bypass. This can damage the pump itself. Instead, focus on troubleshooting the following:

* Fuel pump relay: Check the relay for proper operation. A bad relay prevents the pump from turning on.

* Fuel pump fuse: Inspect the fuse for blowing.

* Fuel pump itself: The pump could be faulty, clogged, or low on fuel pressure. This requires a fuel pressure test with a gauge.

* Wiring: Check for any damaged or corroded wiring leading to the fuel pump.

* Computer (PCM): In rare cases, a malfunctioning PCM could prevent the pump from being activated. This is a more involved diagnostic step.

Before attempting any repairs, disconnect the negative battery terminal to avoid accidental short circuits. If you're not comfortable working on your vehicle's fuel system, it's best to take it to a qualified mechanic.