My 89 blows out hot air as soon as the coolant is warmed up, regardless of the temperature settings on the digital controller. A/c or vent, doesn't matter: still hot air! Is this a function of the ac/heater programmer, or could it be a stuck air mixer???

89 vettes have a one year only electric actuator that works the door. they are very hard to find. i need one for mine. to check have an expert check output from controller. good luck

Found the problem. It's the ac/heater programmer. Got one on ebay from thepartsladi in Fla. Good price too.

I have ordered from thepartsladi as well...good group..

I have ordered from thepartsladi as well...good group..

A "good group" doesn't advertise false information, and when there is a problem, a "good group" handles it responsibly.

thepartsladi is an online only, no inventory, drop ship from another company's warehouse, with little or no business ethics. Move the part any way you can, and don't bother with description accuracy or mistakes.

Unfortunate they are in the Corvette community.

JMHO after personally dealing with their outright lies, delays and obstructions, as well as reading similar forum posts elsewhere.

Found the problem. It's the ac/heater programmer. Got one on ebay from thepartsladi in Fla. Good price too.

DO you have the phone number to this place perhaps?

You can find her on ebay under parts for corvettes:thumbsup3: