so after the truck warms up when you slow down to a stop eaither in gear or park or neutral the truck starts acting like its cammed starts idling all lopey gets a loud sucking noise thru the throttle body like a loud hissing... now does that sound like a bad iac to anyone? i was thinking if i clean it or get a new one mite take care of it.

 

the IAC would be my first guess.

ive never had the problem of stallin, but ive read countless threads that describe your problem and the answer is 9/10 the IAC

 

kinda what i been thinking

 

doesnt do it when its cold?

if not then yes id say IAC

 

no not that i can say.. i do notice going down the road with cruise on that is seems the rpms flux a lil bit

 

thats while the cruise control is ingaged

 

how bad is the flux?

 

100-200 rpms.. i see it on the rpm gauge wich we know isnt accurate... could have beenthe trans since it did go slipping and such...

 

check the transfluid while running in neutral, and see if its up to par, or smells burnt.

as for that amount of flux, its more of a reason to blame the IAC

 

trans already went in process of getting it rebuilt right now. yes it was burnt... clutches were gona and revers band was broke.