Question about Ford E-250
The change of the temperature is done by the temperature control The temperature control is a simple variable resistor that sends a signal to the blend door actuator module. If the shaft of the control does not rotate smoothly, then the control is probably bad.
A system which automatically combines cooled air conditioned air and warm heated air in precise amounts is going to be of little use if either the heater or a/c system aren't working properly. Similarly, if vacuum controlled doors inside the heater box aren't working properly with the old manual a/c system, they probably won't work right with the new eatc system.
So before beginning this project, we'll need a baseline to figure out if additional parts need to be ordered:
Posted on Jun 19, 2009
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Posted on Jan 02, 2017
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