What to do if your Yukon air conditioner is not working?
If the air conditioning unit is not responding as it should, it is easy to diagnose the problem. Turn the Yukon on and turn the air conditioning unit on. If the compressor works, move on to Step 2. If the compressor does not turn on, it will need to be replaced. This is a repair that should be handled by a professional technician.
What’s the PSI on the Yukon air conditioner?
Open the service valve on the recharge can to shoot the recharge vapor into the Yukon’s air conditioning unit. Stop when the hose gauge reads between 25 and 40 psi.
Why is my 1999 Yukon running out of coolant?
If the air stays cool for the entire time while the air conditioning unit is running, you more than likely just ran out of coolant. Monitor the air conditioning on the 1999 Yukon for the next few months. If the air conditioning unit stops releasing cold air after only a few weeks or months of use, there is a leak.
Where is the air conditioning valve on a Yukon?
Open the Yukon’s hood and turn the Yukon on. Put the air conditioning on “High” or “Max.” Connect the recharge hose to the Yukon’s air conditioning valve. The valve is found on the rear wall of the engine compartment. The valve cap will be blue.
Why is my AC compressor not coming on?
Compressor not coming on As the pressure switches control the on/off function of the AC compressor, a switch failure can prevent the AC compressor from functioning at all. The compressor is what pumps refrigerant through the entire system. If it is not functioning, then the system can not operate, and will be unable to produce cold air.
What does low side pressure on compressor mean?
Static low side pressure won’t give you any idea of system charge. You could have a low side target range of 50-psi and see that static pressure on your gauge. All that tells you is that there is some refrigerant in the system. But 1 ounce of refrigerant will provide a 50-psi reading the same as a full system.
What happens when a pressure switch fails on an AC compressor?
3. Compressor not coming on. As the pressure switches control the on/off function of the AC compressor, a switch failure can prevent the AC compressor from functioning at all. The compressor is what pumps refrigerant through the entire system. If it is not functioning, then the system can not operate, and will be unable to produce cold air.
Why is my AC high side pressure not correct?
The correct reading will display once the clutch engages and the gauge stops cycling. If there are readings on both the high and low sides but they are not the correct specified pressures, it means that certain parts of the AC system are not functioning properly, such as the expansion valve, compressor, and clutch.