Topic: Message #895950

[red450r]

IAC! I had the same prob, they carbon up and stick open and allow too much "un-metered" air past the throttle plate. I swapped a new Idle Air Control Valve in and BAM! No more revving up and down with my foot on the brake pedal. I also dont have A/C so I bet thats what you've got going on. As long as your Brake Booster supply line doesnt have a leak then I almost guarantee its your IAC! Just my past experience

where did you pick up your new iac and how much it hit you for
Happy Thanksgiving!