Kirby93

Once the truck gets to operating temperature it hesitates and sometimes stalls, the stalling happens mostly in reverse and it only happens in drive if you hit a certain spot in the gas pedal when taking off. The truck starts right back up every time. Once you get past the little hesitation she is smooth as silk. The TPS is new, the IAC valve is new and the MAP sensor is new. The temperature gauge doesn't work the switch might be bad but I think the truck would run like crap all the time if that were the case... It's easy on gas, It doesn't smoke at all, great acceleration, it's just that one spot as soon as I put the weight of my foot on the gas pedal. It's all I've got to drive so I've gotten pretty good a missing that spot, but driving it is only going to make things worse. I read in another forum that the transmission fluid/filter could have something to do with it (something about the filter falling off and laying in the pan?). I know my way around these trucks pretty well and this is the only one if the 12 I have owned that stumped me and im losing sleep over it any input or advice would be greatly appreciated!

Seth95F150

Possibly canister purge solenoid

Steve83

No, the CANP is not a possible cause. Neither is the ATF.

"New" doesn't tell us anything useful about those parts. Why exactly was each one replaced? What test did it fail, and did its replacement pass the same test? What's the replacement's brand, PN, & source? When was each one replaced? This caption explains how to test the TPS, and there are links for the other sensors & actuators:


(phone app link)

Get a Haynes manual & read it:


(phone app link)

Get a digital multimeter and learn how it works so you can use it on the truck:


(phone app link)

Put all the truck's details & history into your signature as this caption explains:


(phone app link)