Originally Posted by NicksterSVT
You also need to remember fuel system. You may have a fuel filter stopping up, fuel pump going out, or you could even have a bad fuel pressure regulator. Could be a vaccum leak, you cant check the MAF with a volt meter... It very well could be a TPS. I have also seen excess buildup on top of the fuel injectors(the screens in the tops) causing insufficient fuel delivery...
I cleaned the IAC valve last night and checked the converter out.
The converter looks good and cleaning the IAC made no difference.
I put a voltmeter on the TPS and the voltage was all over the place, so I believe I found my problem.
I'll swap it out on Friday and put a new fuel filter in the truck for good measure.
I don't believe the truck has a bad fuel pressure regulator because it would be running overly rich. Gas mileage has stayed the same and the exhaust doesn't smell as the engine is running rich. But I'll pull the vacuum line off it and check for gas in the line just to be on the safe side.
If the problem persists I'll check the voltage and amps draw to the fuel pump.
I wouldn't be superised if that were the issue either.
Thanks for your suggestions.
I'll let you guys know how I make out after the weekend.
I have to work on my wife's Explorer tonight- gotta fix a broken sway bar end
link and install a set of Rancho Shocks. Maybe even get the class IV hitch on.