Question about GMC Yukon XL
You'll probably have to have someone hook up to the a/c system with the pressure gauges to see what is happening inside the system when it is running and also hook up the OBD II diagnostic connector at the same time to see why it's blinking the light. Often when a compressor has failed it will send a lot of ground up metal into the system which can plug both the condensor core and the expansion valve...both of which will then cause the high side pressure to be far too high and the system will turn off as a result. If it tries to run in this condition for any length of time it will damage the new compressor which then sends even more metal debris into the system as it fails. Good luck, hope this helps a bit!
Posted on Aug 06, 2010
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Posted on Jan 02, 2017
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