Why is my GMC Sierra AC not working?
The most common causes that hinders normal operation of air conditioning system on your GMC Sierra 1500 are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system.
Why is the AC in my truck not working?
The most common causes of broken air conditioning are leaks or compressor issues. If your air is blowing cool but not cold, the problem could be a clogged filter, cooling fan problem, radiator trouble, or it could simply be that you need to recharge your AC.
How do I know if my AC compressor is seized?
The most common symptom of a compressor failure (besides no cooling) is a seized compressor. It won’t turn when the magnetic clutch engages, and you may hear squeals of protest from the drive belt. Or, the belt may have already broken or been thrown off its pulleys.
Can you Unseize a AC compressor?
No you should not. If the pulley is seized it won’t turn at all and the friction of the belt on a frozen pulley would burn the belt to the point of breaking. It also could start a fire under the hood. Call your auto parts store and ask them if they have a belt for your model vehicle without AC.
What happens if AC compressor seized?
If the compressor is seized, the entire clutch assembly will be stationary and the belt will be slipping, squealing, smoking and, in a very short period of time, failing. Because of the need to recharge the system to replace the compressor, leave service to the pros.
Is it bad to drive with a bad air compressor?
You will be fine as long as you don’t need or want AC in your car. Without the AC on the clutch will not engage and the AC compressor will not turn an therefore have no effect on the engine. The compressor is turning off before the preselected temperature.
When should I replace my air conditioner?
If you kept your air conditioner in good condition over its lifetime, expect to need a replacement in about 10-15 years. Keep in mind that as your A/C grows older, its mechanical parts can become unavailable or obsolete over time. If you aren’t able to replace a broken part, you will need to purchase new unit.
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