'91 Corvette heater blower keeps running


Old 10-31-04, 09:36 AM
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'91 Corvette heater blower keeps running

I am still struggling with that heater blower which always runs at only one speed and keeps running with the Off button pushed and it even keeps running with the ignition key out. This is an automatic ac and heater system. The blower speed can be adjusted to 10 different speed levels. Now, if set at 1 or 10, the speed remains the same. I had to unplug the motor to stop it.
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Old 10-31-04, 11:55 AM
Join Date: Apr 2002
Location: Pittsburgh,Pa
Posts: 2,417
Remove the hi blower relay and see if it stops running all the time and makes the other speeds work.The relay may be stuck causing it to stay running.You could also have a short but I don't have a 91 vette wiring shematic so I can't say where to look for one.
Old 06-01-07, 04:49 AM
Join Date: May 2007
Posts: 1
'88 corvette heater blower motor keeps running

Having same problem. Was your problem caused by the hi blower relay (where is that located) or by something else? What did you do to repair?

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