ICrushedAPrius
Full Access Members
I'm almost positive it is your IDLE AIR CONTROL. It's common for Expy's and especially Excursions to need this replaced. It cost me about 300 bucks to get done.
Your idle air control will vary your RPM's depending on weather (cold/hot) fuel used, etc. By adding/restricting air flow to make the fuel/air mixture leaner or heavier.
Your idle air control will vary your RPM's depending on weather (cold/hot) fuel used, etc. By adding/restricting air flow to make the fuel/air mixture leaner or heavier.