[quote:3ad49c914d="rickrob"]I have a 1998 ford ranger, 150,000 miles, put in new clutch, trowout bearing, pressure plate myself, now car is idleing high when warm, but idles down once you stop.[/quote:3ad49c914d]
Too fast an idle speed.
If an engine with computerized idle speed control is idling too fast and refuses to come down to a normal idle speed despite your best efforts to in adjusting air bypass adjustment screw. Air is getting past the throttle somewhere. Common leak paths include the throttle body gaskets, intake manifold gaskets, and of course, any of the engine's vacuum fittings, hoses and accessories. It is even possible that leaky O-rings around the fuel injectors are allowing air to leak past the seals. Another overlooked item can be a worn throttle shaft
Could also be the idle speed control and throttle speed sensor-
Sep 16, 2007 at 1:13 PM
