Preliminary Inspections
WARNING: This page is about a different car, the 2002 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.
Visually inspect Idle Air Control (IAC) valve assembly. Check for mechanical faults: loose, leaking, pinched, kinked or otherwise damaged coolant or air hoses and connections. Check for loose fasteners, hose clamps or White smoke from tail pipe. Check for electrical faults: damaged or loose connections. Repair any faults as necessary. If all visual checks are okay, proceed to TESTING .