Seafoam! Awesome product indeed
I only used the 1/3 pint recommented but did get a considerable amount of smoke
(run the 1/3 pint through the brake booster vac - rest of the can into the gas tank).
The Seafoam did help alot. The engine is now quieter and is running smoother. The first thing I noticed is the brake pedal firmness is back.
I used $35 of good money to troubleshoot the TPS... that old one is good hehe. I re-gapped the spark plugs to .56 (instead of .52).
Next is to replace the plug wires - Last night when I pulled into the drive I could hear a 'ticking' sound coming from the engine (like an ingition arc), but when I looked under a dark hood I could not see any signs... the sound of the engine muffles it out when your looking under the hood, but when you stand beside the truck and its running the ticking is more pronounced.
The stumble on medium to heavy acceleration is still there though
... maybe the plug wires will help this... Although its not certain. I say this cause I CND when the engine is 'cooler'... only when its hot outside and the engine is at full running temp. The wires heating up and failing perhaps?
Saefoam is your friend! All the other injector cleaners, etc are teh suck.