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Old 12-17-2010, 06:35 AM
ranger pete ranger pete is offline
Ford Motor Company
 
Join Date: Oct 2010
Posts: 125
Default resistor pack troubleshooting.

My blower works only on the 2 highest speeds. I pulled the pack, expecting to see a "pack" of resistors, but, what I see is a resistor and, well, a pack of springs.

I am curious about how this device works. Does it have some way of measuring the airflow past it?

Is there a way of troubleshooting beyond just cleaning it and it's connections?
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97 Ranger XLT extended cab 3.0 5 speed
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Old 12-17-2010, 04:32 PM
mdblitz mdblitz is offline
Ford Pickup
 
Join Date: Aug 2010
Posts: 107
Default Re: resistor pack troubleshooting.

Replaced mine a few months ago. Those springs are resistors in series directing current to the blower motor through all, incrementally fewer or none depending on switch position. Think of toaster elements. Not high-tech but functional. Not expensive to replace if you have it out already.

Last edited by mdblitz; 12-17-2010 at 05:15 PM. Reason: Researched correction.
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