I've replaced the fuel pump, distributor cap, rotor, wires, oil pressure sensor, crank shaft position sensor. Still won't crank over like it should. I just purchased a new coil just hoping that will fix it. Anybody out there know what my real problem is? Once it starts it runs like it should. I had a mechanic tell me it is my fuel injectors and I think that's a load of crap. He is the one that told me I needed a new Fuel pump. Also replaced spark plugs. Truck is 2002 Silverado 4.3 V 6 1500

 

year, engine might be helpful.