'92 F250 5.8L, starts and idles fine, give it a quick step on the gas and it will bog and normally stall in Park, as well as all other gears. Slow down to take a corner and it will stall, pull up to a stop and it will normally stall. This just came on today, have had no real problems up to this point. Possibly an IAC problem?? Would the TC cause a problem in Park if it locked up?? I dont know, please loan me your advice!!

 

I had a bad IAC and mine would not hold idle at all. I had to put in neutral and keep my foot on gas at stoplights to get it home.
Ed

 

Whats the fuel pressure?

 

??? Good question!! I have no way to check or any knowledge on how to check!! Searching the forums now!!