'91 3.0 rough idle?
my '91 3.0 when warmed up idles kinda rough around 600-650rpm, and as expected in the cold 1000-1500. but today i took a 100 mile trip and let the truck sit ten min. i go to start it, fired up quick and then died. did this a few times, then put it in neutral (auto trans by the way),then i gave it throttle once it started n it wanted to idle 500 rpm and wanted to go lower. put in park about 600-700. this is the first time this happened. ideas??
i was told puting in a thermostat may help with rough idle?
thanks much for the comments!
1991 Ranger 3.0 XLT