Question about 1997 Chevrolet Blazer
The guage on the filler can is the low side, if that is reading in the caution range, you can just about be sure that the high side is too high. You need to get a gauge that reads the high side to verify your reading.
The a/c compressor will always bog the engine down a little, it is a fairly significant load at idle.
As far as needing to purge the system of air, you only need to do that if the system lost its charge.
Posted on Jul 29, 2009
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Posted on Jan 02, 2017
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