Visual Check

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

Perform the following, and make all necessary repairs before continuing with QUICK TEST:

Inspect air cleaner and inlet ducts.
Check all engine vacuum hoses for damage, bends, leaks, cracks, kinks or improper routing.
Inspect system wiring harness for proper connections, bent or broken terminals, corrosion, loose wires and proper routing.
Check Powertrain Control Module (PCM), sensors and actuators for physical damage.
Check engine coolant for proper level and mixture.
Check transmission fluid level and quality.