No start, manual security reset?
I have a 2001 Blazer xtreme p.o.s. 4.3L v6 2door. December, changed the key cylinder, then the truck wouldn´t start. Found out, there is a manual reset u have to do with shutting and opening the doors several times for the computer to establish communication with the new hardware. Well, everything was running well then. Now this morning, I get to turn the truck on, and it just turns and turns, a couple sputters but no start. Now I am thinking ignition module, switch, what else? When I turn the truck on I hear the pump hummm, then it just turns. No firing, what can cause this!!!