4.3 Vortec W 4wd SLE auto trans.
Will start then die, wont start again for a few minutes. When it does start sometimes it runs good for a while then starts missing and then clears up.
Next day same thing all over again.
Has gotten worse, harder to start and rougher running.
Replaced: Fuel pump, (delco) fuel filter, fuel injection spider assembly,
distributor, cap, rotor, spark plug wires, spark plugs, Coil, ignition module, battery, crankshaft position sensor, throttle position sensor, new air cleaner, cleaned idle air control valve.
Gets fire, gets gas, timing is right, Key on Fuel pressure 66 psi after 5 min of key off 57 psi.
No Codes. no ses light.
Someone please help! I am going nuts trying to get this thing to run.
Goodyguy~