![]() When the air going over it slows down, it can’t do its job as well. The cooling fan blows fresh air over the condenser and helps it dissipate heat. Cooling FanĪ defective cooling fan will cause your Trax’s AC to stop working well. Sometimes, it may come off as a fast and lighter clicking sound. Here’s what a bad blend door actuator sounds like: When your Trax’s A/C is blowing WARMER than the outside temperature, it strongly indicates that the blend door actuator is causing the cooling issues. Sometimes, when on an all-day trip, the blend door can freeze up, and it’ll stay in whatever position it was in when frozen. The blend door actuator may be bad or stuck if your AC system is not blowing cold air. Your Trax’s blend door is responsible for adjusting how much air gets in from the A/C system and the heater core. They almost all use blend door actuators. Very few vehicles still use manually controlled blend doors (where there is a wire that connects to the temperature slider). As a result, the system pressure will diminish, and you’ll have to repeat the cycle until you discover WHY the system was leaking and repair it. Having the system recharged can temporarily get your AC system blowing cold again. If the refrigerant leaks out of the system, eventually, there won’t be enough left to cool your Trax. If you add too much coolant to your vehicle, you can cause more leaks in the AC system. The most common reason for your Chevy Trax’s AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged). ![]() If there’s no voltage, test the resistor (YouTube). If voltage goes to the blower motor, it’ll need replacing. A simple test light will usually do the trick. We recommend testing the circuit for voltage at the blower motor first because it’s almost always easier. You can tell if the blower motor resistor has failed by testing for voltage where the harness plugs into the blower motor. Here’s how to test a blower motor with a multimeter (electrouniversity) Blower Motor Resistor Blower motor resistors come in many shapes and sizesĭepending on how your particular model year of Trax’s blower motor resistor question, it will still be able to turn on the blower motor when you turn the speed all the way up. If air starts blowing at full blast, suspect the blower motor resistor. If all the dash lights are on, the climate control system looks like it should be working, and no air moves, you should suspect the blower motor.īefore replacing it, turn the fan up to its highest setting. Bad Blower Motor (Most Likely)īlower motors are known to fail without warning. If you don’t hear any noise coming from the blower motor, the air conditioner not working check these two items. However, there are a few less common reasons as well. When there’s no air flowing through the vehicle’s cabin, a bad blower motor usually causes this scenario. If your Chevy Trax has no air moving through the climate system at all, that’s a lot easier to diagnose than the air that is blowing not being cool enough. AC Blowing No Air at All Usually the culprit There are just too many variables otherwise.ġ.
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