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When recharging a Pontiac Aztek's AC system with R134a is it necessary to have a gauge to meter the lbs?
Wiki User
∙ 17y ago
You CAN just add a little at a time until the AC runs without cycling on and off, but don't add too much or you can destroy the seals of the compressor. That process is not recommended, especially since gauges are relatively inexpensive. To accurately charge the system, yes a meter is required.
Wiki User
∙ 17y ago
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