Blower motor issue
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Senior Member

Joined: May 2011
Posts: 855
Likes: 1
From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Blower motor issue
Ok got a question was wondering if there is anyway of making the blower motors on our cars blow faster like newer cars with the ac on full max it just doesnt cool off enough in the car
Supreme Member




Joined: Jan 2000
Posts: 3,178
Likes: 48
From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: Blower motor issue
GM fits taller squirrel cage fans on cars equipped with AC. I don't know if this is because the non-AC cars have shorter boxes or if they want AC equipped cars to move more air through the ducts.
If you already have AC in your car your fan is pretty much moving as much air as it can. I'd check to see if your AC box is full of leaves and other debris.
Inspect the blower motor wiring; make sure there's no sketch or otherwise melted connections. Maybe an upgrade in wiring might help (?)
Take the motor out of a Taurus radiator fan and fit it to the HVAC fan?
If you already have AC in your car your fan is pretty much moving as much air as it can. I'd check to see if your AC box is full of leaves and other debris.
Inspect the blower motor wiring; make sure there's no sketch or otherwise melted connections. Maybe an upgrade in wiring might help (?)
Take the motor out of a Taurus radiator fan and fit it to the HVAC fan?
Thread Starter
Senior Member

Joined: May 2011
Posts: 855
Likes: 1
From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: Blower motor issue
Ac system is all clean and brand new stuff ac condensor dryer evaporator ofirice tube compressor is also brand new all grounds are good getting the 12v right at the blower when its on full blast wondering if i could use one from a forth gen since those came with a higher speed setting
Senior Member




Joined: Jul 2016
Posts: 789
Likes: 208
From: az
Car: 91 WS6 GTA
Engine: 5.3
Transmission: 4l60e
Re: Blower motor issue
I used autozone.com and both blow motors are different, BUT the motors might be similar....maybe can use a later model and swap it to yours. It would require a trip to the parts store to hold both in your hand and see if its doable..
but I'm with you, my 3rd gen doesn't blow hard enough (giggity giggity)
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