Question about 2004 Chevrolet Silverado

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2004 Silverado climate control system does'nt function.

I have a 2004 Silverado that does'nt have any climate control whatsoever...the blower does'nt operate and you can't hear the doors operating when you move the mode knob to redirect the air. The A/C button and recirculate button still illuminate when you push them however. I have power at the fuse under the hood for the HVAC but the fuses in the dashboard on the driver's side for the HVAC don't have any power...they were replaced just to be sure but still no power there...any ideas? Thanks!

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  • Chevrolet Master
  • 2,112 Answers

If it is as you say, I should check the body harnesses.
When your Silverado was assembled at the factory, the wire harnesses began and ended at the firewall, among many other places.
Each of those locations had a male & a female plug or socket.
If the Silverado ever had a stress in the area of the harness plugs, they could be loose.
Could also get corrosion if there was road salt if you live up north. A car wreck could cause this, or if someone removed and installed the engine.
Lots of reasons.
God bless your efforts.

Posted on May 26, 2017

6 Suggested Answers

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SOURCE: Climate contol does not light up.

Unfortunately the bulbs that light up your climate control are not replaceable and in order to get it to light back up again you need to replace the climate control unit.

Posted on Mar 15, 2009

  • 104 Answers

SOURCE: dashboard lights do not illuminate Toyota Lucida

Check the dimmer wheel or knob. I do not have the specifics for this model just a general idea. Check fuses first with a test light. Let me know if I can help more. Thanks.

Posted on Jun 11, 2009

  • 400 Answers

SOURCE: 2004 impala a/c blower not working

No it can not.
You have a couple of actuators that have gone out. The driver temp control. And the air inlet actuator.
And I don't fallow your statment of "my a/c blower went completely out. I tested the blower and it works fine".

If the blower went out, then what do you mean it works fine? Are you talking about air delivery or it just quits blowing all together?

Posted on Jul 01, 2009

  • 3 Answers

SOURCE: Can't move the climate control knob to hot

There is a technical service bulletin for this problem.(tsb# 05-55-003) The blend door inside the heater box is binding and needs to be replaced. Unfortunately, the dash has to be removed and the a.c. refrigerant removed in order to remove the heater box.
I already have purchased the blend door and the linkage for my son,s 2003 Lancer. I will be doing the job in about a week.
I am a professional auto repair tech with 38 years experience. I would not recommend doing this job yourself unless you are pretty good with auto repair work.

Posted on Nov 22, 2009

  • 63 Answers

SOURCE: 2003 Trailblazer No air from front face vents

first check to see if you have power going to the actuators when you switch the switch to it location if no power replace controller if you have power and no movement from actuators replace actuator. if actuators move remove hvac box and check for broken blend doors.

Posted on Jan 22, 2010

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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