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What is the high and low pressure in ac of a 2004 Pontiac grand am?

The exact high and low pressure specifications for the AC system in a 2004 Pontiac Grand Am will vary slightly depending on the specific refrigerant used (R-134a is most likely) and the ambient temperature. You won't find a single definitive answer.

You should not attempt to determine these pressures yourself without proper training and equipment. AC systems operate under high pressure, and improper handling can lead to serious injury.

To find the correct pressure readings, consult your 2004 Pontiac Grand Am's owner's manual. It should specify the ideal high and low pressure ranges for your vehicle's AC system at various temperatures. Alternatively, a qualified automotive technician will have access to service manuals with this information and the proper gauges to measure the pressure safely.

Improper refrigerant charge is a common cause of AC problems. Only a professional should diagnose and repair issues with your car's AC system.

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