North American Turbocoupe Organization



Blower motor
qtf545 Offline
Member
#1
I was wondering if anyone else had the problem of the heater/ac blower motor cutting out. Whenever I hit the gas the blower cuts out and as soon as I ease off the gas the blower continues to function properly. I was thinking of changing the resistor on the blower, but I was curious if anyone had the problem before and has a quick fix to it. By the way the vehicle is an 88 TC.

Thanks
1988T-bird Turbo Coupe Medium Red/Porno Red 190K non daily driver,but a work in progress.
1993 GMC Typhoon
2005 Mercedes S55 Sold
2002 GMC Safari Sold
2007 Harley Davidson FXSTB Night Train. Finally got another one. Sold
2013 Ducati Monster
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Ryan H Offline
Posting Freak
#2
Maybe a loose connection somewhere that gets cut off when the wires shift (acceleration)? Just a thought, never heard of this before.
'88 TC Smile Walbro 255HP, Stinger FMIC, PIT BOV, Pro 5.0, Kirban, RR cam, FRPP strut tower brace, T3
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Jeff K Offline
Administrator
#3
Are you sure it is the blower motor cutting out, or is the air being redirected to the defroster where you cant feel it? My guess is the air is being diverted to the defrost outlets due to a loss of vacuum in the control system due to a inop check valve, cracked vac reservoir, etc. If system looses vac, it is designed to default to defrost.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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qtf545 Offline
Member
#4
No defrost at all when the accelaration is going. I think it might be the resistor on the box itself, but I will also have to check the wires along the path. I would like to find the problem actually. Thanks
1988T-bird Turbo Coupe Medium Red/Porno Red 190K non daily driver,but a work in progress.
1993 GMC Typhoon
2005 Mercedes S55 Sold
2002 GMC Safari Sold
2007 Harley Davidson FXSTB Night Train. Finally got another one. Sold
2013 Ducati Monster
Reply

russ c Offline
Senior Member
#5
I thought I had the same problem but it turned out to be a broken vacuum line to the reservior. The broken line caused some very odd behavior from the HVAC system.
86TC Saved from certain death
88TC Gave its life so other TCs could live.
88TC DD.
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qtf545 Offline
Member
#6
cool thank you. I will inspect further.
1988T-bird Turbo Coupe Medium Red/Porno Red 190K non daily driver,but a work in progress.
1993 GMC Typhoon
2005 Mercedes S55 Sold
2002 GMC Safari Sold
2007 Harley Davidson FXSTB Night Train. Finally got another one. Sold
2013 Ducati Monster
Reply





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