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Anyone ever found a suitable upgrade for the blower motor and wheel used in the underdash A/C unit? I don't know about the diameter, but the more modern motor/wheel units I see in later model vehicles sure look like they'd be compatible.
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1979 Cherokee Chief S, 360, TFI, Part-time conversion, rust
If you go lookin' for rust, you'll find it. -
What is the purpose of trying to upgrade the fan? Do you have issues with speed, air volume? -
ThatComment
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Yeah even with a new motor I'm underwhelmed by how much air it can push.Originally posted by wiley-moeracing1979 Cherokee Chief S, 360, TFI, Part-time conversion, rust
If you go lookin' for rust, you'll find it.Comment
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Check to see that circuit is working properly...as in no resistance dropping voltage etc.Originally posted by elskeptico
EDIT: I used an old ac blower for my DIY heater and it puts out an insane amount of air.
Also all ones I've owned the underdash unit was adequate in airflow, some needed a little work to the decades old wiring & bits.Last edited by babywag; 07-31-2020, 11:04 AM.Tony
88 GW, 67 J3000, 07 Magnum SRT8Comment
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Agree, you need to check for voltage drop at the motor through the circuit, amperage draw, then you may need to clean out the evap unit as it may be plugged up with dirt. bent fins, etc.Comment
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