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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Heater/blower motor?

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Old Dec 24, 2009 | 10:44 PM
  #1  
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Jrock909
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Heater/blower motor?

My heater/blower motors seems really weak, the fan speeds adjust accordingly to the speed settings, but the blower doesn't seem to put out much power, could it be because of the age of the blower motor, would a newer blower motor fix my issue.....
 
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Old Dec 25, 2009 | 06:17 AM
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fmr9
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You don't mention what you are working on, so this is just some guessing. It is possible your AC coil is parialy plugged. Might have a few leaves or pine needles, or a mouse nest. Doesn't take a lot to partially plug the coil.
This check and fix is really easy, and quick, like maybe 20 minutes tops. Pull the blower motor from the engine compartment side of the firewall. Reach in with your hand and bend a few inches toward the center of the truck. Should be able to feel the coil for the AC. Remove any thing you can, by hand. Then using a shop vac, try removing even more. Be careful, the fins on the coil are easy to bend, and poking a hole in the coil will cause the system to lose the freon. Assuming you find some debris in the area, after cleaning as much as possible, you could use a garden hose on the coil. This will probably put water inside the cab, so not much water or just skip this.
If it helps increase the air flow, fine, if it doesn't help, at least you have not spent any money and very little time ruling out a plugged coil.
Good Luck Frank
 
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