blower fan speed

[waypen11]

Are there any replacements for the blower fan that have an increased velocity to move more air. The stock unit seems a little anemic on MAX a/c and barely cools the interior during very hot days. A/C is fully charged and working properly.

 

[turbodog]

I'm not aware of a blower motor upgrade. The 'weak A/C' TSB gives 3 upgrades:
1. air deflector under front of truck. Does not apply to SyTy since we have the lower IC in that spot.

2. Insulator for the accumulator. There's a GM part number but I think someone said it's no longer available.

3. vacuum-operated valve to shut off hot water from heater core during 'max A/C' operation. Manual valve will work, too, just less convenient.

HTH.