Question about 2000 Chevrolet Silverado
The A/C will not blow cold air after a loud squeeling noise under the hood stopped! I think my a/c compressor went out! I need help on how to change the compressor! This is on a 2000 Chevrolet silverado z71 ext cab with a 5.3.
Look way down on the engine front area passenger side for the compressor.
Is the belt gone?
Check the belt tensioner pulley....can you turn it?....is it seized?
If it is OK then try and turn the compressor.......and the idler part of the compressor.
If the compressor is seized.....why?
Usually lack of oil in the system,or an overcharged system.
Once you have removed the 134a gas from the A/C system before removing the compressor and before installing the new compressor make sure you add the correct amount and type of oil into the system to prevent another seized compressor after you have flushed the system to remove contaminates such as old compressor grindings......if the compressor was seized.
You will also need a new receiver/dryer once you open the system to the moisture in the air.
Do not expose the new receiver/dryer to air....install last.
Vacuum the system well before refilling with the correct amount of 134a.
At 70 to 80 degrees outside temp........a vent temp at medium fan speed of 48 to 45 degrees should be a full charge .......use this reading if you do not have a electronic scale and/or A/C machine.
DO NOT OVERFILL THE SYSTEM.
Posted on Sep 08, 2009
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Posted on Jan 02, 2017
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