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A/C Control Unit

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Bolting in a New A/C Control Unit

Imagine driving under a hot summer's day and without air conditioning; you sweat just thinking about it, right? The air conditioner is not just a perk inside the vehicle, but it keeps the passengers comfortable during the whole trip. The A/C control unit is usually electric in the modern time, which involves no mechanical connections. It's very easy to install and would take just a few minutes. Here's a guide to help you mount a new A/C control unit on your GMC.

Required skill level: Novice

List of tools that you'll need:

  • A new A/C control unit
  • 1⁄4 -inch ratchet and socket set
  • The preparation stage

    With your left foot, step down on the emergency brake and lock it in place. The right foot should be on the right pedal. Insert the key into the ignition and twist it to on. Shift the automatic gear shifter to the lowest position. Make sure to tilt the steering column to its lowest position as well.

    Loosen the clips that hold it in place

    Take out the bezel that's around the dashboard to be able to manually remove the clips. Set aside the dash panel. Shift the automobile back in gear, turn off the key, and take your foot from the brake pedal.

    Unbolt and unplug

    Using the1⁄4-inch ratchet and socket, unbolt the old A/C control unit and out of the dashboard. After, unplug the wiring harness out of the control unit and put it aside.

    Out with the old, in with the new

    Take the wiring harness and plug it in to the new A/C control unit. Bolt it in the dashboard by using the 1⁄4-inch ratchet and socket. With your right foot, step on the brake pedal and insert the key back into the ignition and twist it to on. Again, shift the automatic gear shifter into the lowest position, as well as the steering column. Mount back the dashboard bezel and shift the car back into gear. Remove the key from the ignition, your foot from the brake and your job is done!

    A/C Control Unit Articles

    • AC Delco or Programa: Which A/C Control Unit Should You Get?

      The air conditioner inside the vehicle keeps the passengers comfortable as you go on long trips that would take hours before getting there. However, it's also inevitable for the A/C control unit to break down in due time. This is why you need to have it replaced with a new one if you still want to control the coolness it brings inside the automobile. AC Delco and Programa are two of the best-selling brands in the market if you're looking for quality replacement parts. If you're not sure which one to get, we've come up with a guide to help you out.

      Range of products

      Although AC Delco and Programa are two of the greatest brands when it comes to an A/C control unit, these two have different product ranges that might matter to the buyers. AC Delco offers 24 product types to choose from, whereas Programa only offers 9.

      WINNER: AC Delco

      Improved performance

      AC Delco and Programa are made from top-quality materials that will improve your air conditioning. Either of these will also make you control the air conditioner better without hassle. Moreover, Programa is more common among European cars.

      WINNER: AC Delco and Programa


      Often times, people believe that the pricier the product is, the more it is reliable and durable compared to the cheaper ones. However, that's not the case all the time. Some products may be much more affordable and could perform even way better than expensive ones. For the A/C control unit, the AC Delco is priced at $315.54, whereas the Programa at $353.95. Even with the huge dollar difference, it all depends on you which one you're going to get. But these two will definitely be your money's worth.

      WINNER: AC Delco


      Fortunately, both AC Delco and Programa come with a 12-month warranty.

      WINNER: AC Delco and Programa

      The verdict

      Though both brands had a tie in different areas, it's obvious that the AC Delco brand has certain characteristics that the Programa doesn't have. But, all brands in the market have their own set of advantages and disadvantages. It's all a matter of which one will suit your car best.