Engine/Transmission (1994 - 1998) Idle speed screw question

[Bseg]

My idle dropped recently so I turned it up by adjusting the screw on the linkage. I can't seem to get the idle to the right rpm, it's either a little too high or too low. Right now in gear with a. c. on it reads about an 1/8" above the 800 rpm tick mark. I believe it to be about 850-900 rpm.



Is the idle speed screw a regular screw with a locknut? I would like to remove it and check the threads, I believe that they are stripped in the area that I want to set it.

 

[RBratby]

the factory tach is not the most accurate thing to use. you should use a hand tach. the hand tach is a lot more accurate. that should help you out when you adjust the screw.

 

[Ram Medic]

I have noticed on mine that the top of the screw has a nice grove worn in it. When I adjust it, even a little, the bar that hits the screw is supported by the edge of the groved area making the idle a little high. It should wear down fairly quickly allowing the idle to be in the ideal spot. Hope this helps. My . 02

 

[bmoeller]

Originally posted by Bseg

My idle dropped recently so I turned it up by adjusting the screw on the linkage. I can't seem to get the idle to the right rpm, it's either a little too high or too low. Right now in gear with a. c. on it reads about an 1/8" above the 800 rpm tick mark. I believe it to be about 850-900 rpm.



Is the idle speed screw a regular screw with a locknut? I would like to remove it and check the threads, I believe that they are stripped in the area that I want to set it.

Did you adjust the little bolt, or the linkage itself? Supposed to turn the bolt.



http://www.dodgeram.org/tech/dsl/adjustments/2nd_Gen-Idle.htm



It takes VERY little turning to make a big change.

 

[Neibe]

I've heard that if your idle drops it could mean that your lift pump could be on the way out. Is this true and is it true for 12v or 24v or both? After running 80 miles per hour down the highway for several hours when we pulled over at a rest area my idle seemed a liilte low it has since returned more to the normal range.