Inspect the harness to make sure that it doesn’t have any opens or shorts. Check Your Equinox’s AC Wiring Harnessīeing that the clutch compressor is just a few feet off of the road, it can accrue wiring damage over the years. On the other hand, if it is turning freely, we need to determine why it’s not activating.ģ. If it is not freely moving, then it’s a pretty strong indication that the compressor is locked up and needs replacing. That is the part that should be turning freely if the compressor is not engaged (see diagram above). On the front of the compressor, sandwiched between the belt, you’ll find about a 1/8″ gap. You don’t want to turn the pulley where it is attached to the belt. Even with the key off, treat them like they can still come on. Obviously, you’d want to do this with the vehicle off. Your Equinox’s AC compressor should freely turn by hand when it is not engaged. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. This indicates some form of wiring problem.Ģ. The clutch is not getting a signal to turn on. It could even be missing entirely without you noticing if it is an independent belt.Īfter inspecting the belt, there can only be two things left that could be happening:ġ. It may just be that the belt can’t turn the compressor anymore. Inspect the belt to see if it is cracked or shiny. If there are two belts, they’ll both be attached at the crank pulley. Or, it may be turned by an independent belt. Inspect Your Equinox’s AC/Serpentine BeltĪs stated above, your Equinox’s AC compressor may be turned by the serpentine belt that turns all of the engine accessories. Here’s how to about diagnosing why your AC is not turning on in your Chevy Equinox:ġ. If that’s the case, jump to this article: Chevy Equinox AC Not Blowing Cold. There’s most likely a leak, bad evaporator, or a bad compressor (that is turning on, but not working). If you hear a “thunk” or “clunk” noise after turning the AC on, the compressor is engaging. If this clutch doesn’t grab, the AC compressor will not turn on.īefore opening the hood to see if there is anything wrong with the AC compressor, start the Equinox and turn the AC off and back on a few times. It uses a clutch to grab the pulley and cycle coolant through your Equinox’s AC system. The AC compressor pulley is always being turned by either the serpentine belt or a dedicated belt (it’s going to depend on the model year and engine type). No matter where you live if your Chevy Equinox’s AC compressor is not turning on, it can turn a pleasant commute into a nightmare (particularly if you have kids that are riding with you).
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