I've repaired a few Explorers and F150s with a "high speed only" blower motor problem. It's always been the resistor pack. But on manual control HVAC systems.
I just bought an '03 Expedition EB with auto climate control and the front HVAC fan will only run at maximum speed. I've checked Advance Auto and O'Reilly's and they offer a resistor pack with a big honkin heat sink and transistor pack as the resistor replacement all for $96.00.
If I were replacing a $23.00 resistor I'd just roll the dice and buy, install and hope for the best but at nearly $100.00 I'd like to be a bit more certain about my diagnosis.
So....
My problem is the resistor pack with big heat sink on the front fan housing, right?
Thanks,
Ron S
I just bought an '03 Expedition EB with auto climate control and the front HVAC fan will only run at maximum speed. I've checked Advance Auto and O'Reilly's and they offer a resistor pack with a big honkin heat sink and transistor pack as the resistor replacement all for $96.00.
If I were replacing a $23.00 resistor I'd just roll the dice and buy, install and hope for the best but at nearly $100.00 I'd like to be a bit more certain about my diagnosis.
So....
My problem is the resistor pack with big heat sink on the front fan housing, right?
Thanks,
Ron S