1994 PSD no start - need help ASAP
I have a 1994 F-SuperDuty with a 7.3 PSD (turbo) with 201K miles on it. I recently replace the low pressure cut-off switch on the A/C, Started the motor and let it idle for about 10-15 minutes to see if the A/C was working properly (it was) and I shut the engine off. About an hour later I started the engine normally to leave. It started fine and I backed out of my driveway. About as soon as I started forward, the engine just died - shut off completely! I tried restarting it several times but it would crank but not fire. I tried a small shot of a starting fluid and it would "pop off" for a short time. This led me to think that it was a fuel problem. I checked the fuel filter and found that it was starting to get plugged so I replaced it. Still would not start. I also knew that the fuel pump was slowly leaking from the weep hole and decided that this was a good time to replace it too. Still would not start. I talked to the Mech at the local Ford garage and he thought it was possibly the Cam Position Sensor. Replaced that too and still will not start. I cracked the banjo bolt on the fuel pump outlet while a friend cranked it over and it seemed to have good flow. tightened the banjo bolt and cracked the line at the back of the heads while it was being cranked over. Fuel ran out in a stream a little larged than a pencil lead but no gush or spray. (I do not know if that is normal). I pulled the allen plug on the high oil pressure resevoir and it was low and I filled it, tried to start it (no start) checked the resevoir again and it was still full. I replace both batteries with ones out of my other truck - both new and it crank over just as fast, if not faster than it ever has but the tach during cranking is only about 400rpm. Oil pressure never comes off of 0 psi. I even tried grounding the wire from the sending unit to "fool" the system but, even with the wire grounded the needle only went to the "R" on the normal and it still will not start. The volts read about 9 after the glow plugs initially trip off with the "wait to start" light which is about normal for my truck until it starts. I have had 4 (yes four) code readers on my truck with NO codes showing up. I am running out of Ideas and would GREATLY APPRECIATE any and all help that anyone could give me. Sorry for being such a lengthy post but, I was trying to give as much info as possible right away. Again, thanks in advance for any help.