[buck720]

Guys please help I have a problem with my 96 3.4 automatic when I first crank up my truck for the day it will run like a scalded dog after it warms up it acts like the engine is trying to bog when you give it the gas (not the fuel filter). Don't get me wrong it still runs good it just aint right also I have noticed sometimes it idles higher than other times.

 

[hossmaster]

seems like a possible dirty Idle Air Control Valve

 

[Taco1996]

my trucks the exact opposite on cold start. when its cold and i drive it, it wont do anything. its like it dosent have any horsepower i can put the gas half way down and it wont even pick up. then when it warms up its got horsepower