Don't know how to find out if it's the blend door actuator or a wiring problem on my wifes '98 Eddie bauer
Year : 1998Make : FordModel: Eddie Bauer ExplorerEngine: 5.0
Removed the actuator and checked that the blend door was in good working order. Operated the A/C and Htr. EATC controls but the actuator shaft doesn't move. The manual controls are not the same as the automatic and I can't find out what to check at the connection where the actuator plugs in? Thanks
First off make sure you have the correct actuator, see this TSB. If you replace make sure you get the right one.
This TSB article is being republished in its entirety to remove reference to the 1998 Town Car.
Vehicles which are equipped with manual and Electronic Automatic Temperature Control (EATC) use different actuators. The actuators are marked "MAN" for manual and "EATC" or "ATC" for EATC systems. These markings are found on the part number sticker on the actuator.
1998 actuators differ from 1997 actuators on some vehicles (Crown Victoria/Grand Marquis, Continental, Explorer/Mountaineer) and are not interchangeable. Installation of the wrong actuator can cause potentiometer failure on manual systems, and no temperature control for both manual and EATC systems, as well as Diagnostic Trouble Code (DTC) 24 or 25 on EATC systems.
Refer to the Actuator Chart to determine if the correct actuator is installed into the vehicle and service as required.
I appreciate the information confirming that the correct actuator was installed at the factory but it didn't tell me what I need to know. The 8 prong connector going to the actuator actually only has 5 wires. An orange, a black/green, a lite green/orange, an orange/black and a brown/white. I need to know how to check the wiring at the connector to be sure that the actuator is getting the right signals to operate correctly and how to check the actuator to see if it is working properly. Thanks
This should help. Let me know.