heating-control on 2005 Mercury Grand Marquis

can not change heating temp. changed from 80 degrees to 60 degrees still come out hot

by in Charleston, SC on March 03, 2014
2 answers 3 comments
ANSWER by , March 03, 2014
Temp/blend door actuator would be the most common problem, now changing it another job.
COMMENT by , March 03, 2014
Is that the same as heater control valve
COMMENT by , March 03, 2014
No. It's a small motor in a plastic box that mounts on the top middle of the heater box under the dash that controls or turns the door from the a/c to the heater core. Just changed one last Friday. Have done many over the years.
COMMENT by , March 04, 2014
ANSWER by , March 04, 2014
adv you nave it done as not to break the doors