Occasionally at startup my 87 renix 4.0L idles high at startup and will not kick down. Shut off and restart the motor and it idles correctly. First noticed this high idle when I adjusted the automatic trans. cable adjuster on the throttle, it idled real high, and then I readjusted and it seemed normal again. Since then occasionally starts with fast idle. I am not sure if the auto trans. cable adjuster is working correctly. Or maybe I am adjusting it wrong, followed manual best I could on the adjusting.
Anyone had any experience with this problem?