Problems when Shutting off engine Pick up

[luvbowties]

Originally Posted by JonCheun

I have a 1968 C10 with a 350 engine. Lately when I turn the pick up off the engine clears its throat. Is this bad for the engine? How do I solve this?

Like another poster said, idle may be too high. If it continues after all parameters are set, try leaving it in gear while you switch it off--if auto trans; if stick shift, ease out on clutch a tad, in gear, and then switch it off.
Sam