So just like any other day I was waiting for the light to turn green when all of a sudden the truck feels like its missfire'n and the D is rumbling?
No lights, and I took it in and hooked it up with no codes at all...
Truck has 154K on it, oil needs to be changed in mabey 500 miles. Takes off no problem its only when she is warmed up and sitting.
Could this be the IAC or what ever that thing is in the back of the TB?

 

Battery first

 

You think it could be the battery?
I should get it tested, it is an older battry...

 

I would just replace it if its a older battery.... i have seen to many times a battery test good at a auto store and really be bad.

 

+2
it sounds like it could be a bad battery or bad battery connections. clean the terminals and posts really good with a wire brush and if that doesn't work the battery may be the issue

 

Damn...Yea first thing was a wire brush with cleaner with no luck...guess its off to get a new one here. Oh well needed to be done sooner or later. Hope it fixes it. Sounds like crap when I am just sitting.