A/C is blowing hot. Have narrowed it down to temperature control. Compressor working. Lines are cold. Seems like the temperature control knob on the dash does not cause any difference in the air temperature coming out of the vents. What should I check now? Thank you!
a/c blowing hot air on 1999 Chevrolet Silverado 1500
by Visitor in Pampa, TX on April 09, 2010
5 answers 2 comments
ANSWER by Oakman on April 09, 2010
The temperature door actuator behind the dash may have failed. If so a fault code should be stored in the a/c control module. Reading, diagnosing , and repairing the cause of any stored fault codes should get your a/c system back to proper operation. If you find yourself in the need of a repair shop please use the following link to find one near you - http://repairpal.com/directory?address=79065&car_brand_names=Chevrolet.
COMMENT by Visitor on June 21, 2010
Thanks a bunch Oakman, I've been trying to resolve this problem for about 4 weeks now and I've replaced the resistor, a/c actuator and I was wondering if I had to replace the temperature control system. My e-mail is email@example.com, so that I can relay the results back to you. Thank you again...
ANSWER by Visitor on June 25, 2010
TRY DISCONNECTING THE NEG. BATTERY CABLE,FOR LIKE 15 MINUTES,,WORKS ON MY FORD TAURAS
COMMENT by Visitor on July 04, 2010
shall i disconnect the neg batt cable while engine is running?
ANSWER by Jmar51 on August 19, 2010
I have a pacifica 2006 dual air right is cold left side is warm flapper on right side opens and closes when i test it left side stays warm my email is Jmar51@hotmail.com
ANSWER by Visitor on October 20, 2010
there a thing under the dash that open and closes a flap its behind a piece of plastic right where the passnger puts there feet it changes it from hot to cold or cold to hot look kinda squre has like threes screws in it that could be bad
ANSWER by Visitor on December 31, 2010
what to do
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored...
Have dual controls. Everything working fine; then all of a sudden my driver's side will blow ou...
was just sitting at a stop light and all the sudden the a/c started blowing hot air on drivers side and cold air on passengers side
Truck just started blowing hot air through the driver vents while the cold air blows through passenger vents when the a/c is on. Why?