4.0 Ranger

[tneibling]

My buddy's 96 Ranger with 4.0 v6 with 160k does strange things when he starts it up. He'll start it and it used to rev up a little bit until it was warmed up then slow back down. Now he'll start it and it will try to die then he'll give it lil gas and then it will straighten up and run just fine. Any ideas?

[symbols]

IAC most likely. Replaced hundreds of them

[tneibling]

Thanks, we'll check it out

[tneibling]

I found an write up on an explorer forum about how to clean the IAC. Could we get by with this?
IAC valve cleaning thread (w/pics) - Ford Explorer Ranger Enthusiasts "Serious Explorations"®

[symbols]

You can try it but in my experience that never worked. It was always the motor that was bad. You can pull it off and start the truck or just turn the key on and off and if it doesn't move in and out very quickly it's not working and cleaning most likely won't help.

[tneibling]

Alrighty, we'll try it and see what happens then go from there. Thanks

[Evil Eye]

Check the IAC; if it's good, replace the MAF sensor.

[tneibling]

Thanks, We'll check it out. Btw it's not throwing a CEL so

[symbols]

They don't always throw a code for the IAC

[tneibling]

That's good to know. We're gonna work on it after he gets out of class here pretty soon.