Archived decreasing idle?

[gbrinlee]

Howdy, has anyone experienced a decreasing idle on the 12 valve engines? I have a 96 with 126k, auto trans and the idle is slowly dropping. It is a real pain when backing up my horse trailer while turning, the truck just stops, although it fires right back up. I had the 970 recall done a while ago and adjusted the idle to specs. This problem seems to be worse the hotter it gets (especially here in vegas). I have a friend with a 97 12valve suffering from the same problem (80k).

any ideas would be appreciated.

 

[Joe G.]

Common problem. Just adjust it up where it should be, at least 700 with AC on in gear. Mine is sat at 750. I have to do mine every so often. However, it's seems to be longer between adjustments the more miles I put on it. 222K so far.

 

[illflem]

The idle adjustment is rather sensitive, just the contact of the adjustment bolt on the arm wears it so the idle decreases over time. Here's how to fix it http://dodgeram.org/tech/dsl/adjustments/2nd_Gen-Idle.htm

 

[gbrinlee]

Idle problem

I adjusted the idle not too long ago, however I will give it another whirl, THANKS!: I will let you know of the results.

 

[Andy Redmond]

Low fuel psi, restriction in the fuel system (ie dirty fuel filter, etc), , leaky (air or fuel) fuel lines, worn throttle linkage (links & ball studs), stretched throttle cable etc. and all of the other things mentioned could be factors.



Good luck.