My 2000 jimmy won't start when the key is turned all the way ( it's cranking fine ) but if you back the key off just a touch or don't turn it quite as far it fires right up every time. Any ideas?
I have a 2000 blazer 4.3 and after replacing the intake gaskets it ran horrible, redid the timing and it was better but not perfect. Replaced all the plugs and now it is only missing on #1. ( spark seems good) also just put an ac fuel pump in. Any ideas? Injector?