Normal Operation
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Under normal operation, the auxiliary A/C system provides adequate cooling based on the position of the function selector switch.
This pinpoint test is intended to diagnose the following:
- Thermostatic expansion valve (TXV)
- Vacuum hose
- Vacuum control motor
- Stuck or bound linkage or door