At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
I have a 2004 chevy silverado 1500,and when all my switches are all turned off ac heater defroster inside there is hot air still coming out of my vents inside the truck and I have the vents all shut off from the vents part inside what causes hot air to still come through vents
Re: I have a 2004 chevy silverado 1500,and when all my...
There is a diverter door in the heater box that allows outside air to enter the cab this door can stick open when you change from defrost to ac you should hear this door flip directions
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The AC compressor will come on when you turn on the defroster. If you're not getting heat it's most likely that your heater core is going bad. You can flush it out and see if it's getting clogged. Also check your water pump to make sure you have enough flow through the core. The reasoning behind the ac blowing when the defroster is on is that it blows dryer air on the windshield.
Two things come to mind one the flap on the inside of the air duct is not switching over to allow heat to come through. Second your heater core could have a blockage. Go under the hood find both heater hoses run your truck till it reaches normal operating temp then feel both heater hoses one at a time. If one feels very hot and the other feels cold or even luke warm you have a blockage.If they both feel hot then look into the duct works under the dash. There should be a valve that switches the door between your heater duct and your ac duct that may not be operating properly. Some valves are vacume actuated so look for a broken vacume line.
For a 95 Chevy Silverado....I replaced the Blend Door Actuator on the passenger side. Just behind the slide out cup holder. Yo ucan acces easily by removing the ash tray piece and the glove box....Or just the glove box and work like hell to get a socket in a tight place.
There are 2 actuators....one controlling the (Mode and Temp 89018681) and the other the (Air Inlet 89018367). I called the dealer and the parts were 85-125. I got it From TBA Auto (local store) for 39.00. A 20 min job at most.
your speed switch located in heater box usually one wire to it in passenger feet area above "TOES" usually you loose 1 or 2 speeds on fan but it is unplugged or completely cooked good luck!
×