Hello: I did try the fuel pump check twice, and I hear no fuel pump coming on at all when I put the key in the ignition and turn it (not cranking up the truck, of course). Another questions is: Should I at least hear the fuel pump kick in at all? I didn't even hear it, and I am wondering if I could have a blocked fuel filter. But this wouldn't explain all the problems I am having with the truck like the automatic gears shifting real hard (ugh!), and the bad fuel mixture which is making the truck run rich and keeping the Engine light on. I don't know if there is one thing that can determine if the PCM is bad or not though. Just the fuel pump alone can't be the only determining factor. Boy, if anyone is experienced enough, give me a call. I will gladly send a few bucks your way if you can help. Plus, I cannot get this darn thing to the mechanic until Monday, and I desperately need to be places this weekend. I feel like a prisoner!!!!! Steve