A/C causing stall

Tiny
SAMSON30314
  • MEMBER
  • 2003 CHEVROLET TRAILBLAZER
  • 6 CYL
  • RWD
  • AUTOMATIC
  • 200,000 MILES
My wife recently told me that when she turned her defogger on which I know activates the air conditioning compressor her car stalled out when she was sitting at idle this is not so much a question as to answer to anyone that might read this I recharged the air conditioning unit in this seem to solve the issue now it idles without sputtering with the air conditioner on full throttle
Thursday, December 31st, 2015 AT 12:27 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
Arbitrarily adding refrigerant is a very bad idea. These systems require a very specific weight charge and either too much or too little can do a lot of damage. What you need to do is have the system completely evacuated and recharged with the exact weighed charge. At that point the pressures will paint a picture of what is happening in the system. None of the pressure information can be trusted until you know it has the exact correct charge.
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Thursday, December 31st, 2015 AT 1:22 PM

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