Hello
Between a 1997 4.0 ranger and a 2000 Ford Explorer 4.0 . My hands are full of care items. Well I just experienced that IF one were to keep the throttle bodies clean, wallah , the engines both run supreme. The only setback is, both experience a idle lope at dead stop, nothing severe, but still a loping condition. All vacuum lines changed, gaskets changed, granger has new iac and coils. (217000 m)
Exporter has nothing new except gaskets changed.
If anybody has experienced one or another , could use some shared repair issues. I do my own mechanically repairs.
Thanks
George

 

did you thoroughly clean the idle air port with a pipe cleaner

did you check to see if the idle air controller is working