Progress Made
Got my truck in the shop here at school today.
First off I checked my Fuel Pressure.
Pump Running, Engine off-53 PSI
Pump Running, Engine Idling- 50 PSI
Pump Running, Throttle cracked open- 60+ PSI
From that I judge the pump is good, and flowing what it should.
Next, I hooked up the school's Snap-On scan tool, and checked my Cam Retard, and the spec on it.
Spec was +/-2*
Scanner showed -11*
eek
Rotated the dizzy (which is where the cam sensor is) until the reading was in spec.
Truck runs and drives much nicer from what i could tell cruising around town here. I never did get it up on any big roads, but i did find that the stumble has changed a bit. Now, rather than it stumbling while cruising, it does it now accelerating from a dead stop. Once its rolling, it clears up and runs great. It's like a carbureted engine hesitating off idle.
I had one instructor tell me it could be a crack in the pickup magnet in the dizzy, and another tell me it could be the coil
, but I'll check both, and probably replace the coil anyway. Engine has roughly 75,000 on it, but the rest of the truck has 346,*** miles, and God only knows how long that coil's been on there.
Bottom line (as of now) is that the Big Blue Bomb runs better than it did when I drove it last.