I've got my idle set for around 850 rpm. As of lately, after I've been driving a while, I'll come to a stop, and the truck will be running around 1100 rpm. If I bog down the engine then get on the clutch, it will come back to the 850 idle. Get going again and push in the clutch and it will be back at 1100. I also noticed the revs don't fall nearly as fast as it used to when getting out of the throttle. Would this be a governor spring issue? I haven't monkied with those yet. I've also noticed that if I hold the rpms around 1200 (when its cold) and the gird heaters and a/c compressor ar cycling on, it will pull it back down to idle. I've seen other trucks that use a stick for their high idle in the cold and I never heard it rise up and down like mine does.

 

Update. I got to work yesterday, let the thing idle. Was running at 1100. So I popped the hood and pressed the throttle linkage back against the idle screw, made no difference. It is also idling up on its own now. I'll get it down to the 850 idle and then it will rise over about 15 seconds to 1100. I let out the clutch in 2nd, and just let idle its way up. It got to around 900 and then it started hunting.

Anyone have the correct procedure for setting the governor springs from scratch? I'm thinking these ones may not be set correctly.

 

Check both bolts marked bolt location below are there and tight