[mr.eddie]

i have a 94 big body ac blows cold air but when i switch to heat no heat y, could it b the blend door actuator , need help

 

[kadillak_driver]

Yeah most likely is the actuator. Its made of plastic gears inside and they break. Dorman sells a direct replacement. Its about 60 to 100 bucks depending where you get it. Its behind the glove box its a 15 minute repair.

 

[mr.eddie]

how can i tell if its a bad blend door actuator, wats the easy way to find out

 

[BRADFORD]

Are both heater hoses equally hot? If not the heater core is plugged up and needs to be backflushed. If not that then it's either the blend door, door actuator or switch

 

[mr.eddie]

both hoses getting hot, n which switch bro need all the help i can get

 

[BRADFORD]

You gotta find that actuator an see if it's workin when u hit the switch for the heat. Not the blower speed switch. Google search is ur friend here

 

[BRADFORD]

Try this http://www.cadillacforums.com/forum...including-1985/193333-94-deville-no-heat.html

 

[mr.eddie]

thanks bro

 

[scooby]

I'll pm you...easy fix...very common on big bodies