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Where is the low pressure valve located on a 1998 Pontiac Transport?
Wiki User
∙ 16y ago
If you are talking about the low pressure side recharge valve for the A/C system it is sort of low along side of the engine next to the radiator. It will be a fitting attached to a steel line that has a plastic cap on it that must be removed in order to put freon into the A/C system. It is called the low pressure side because it means it is on the suction side of the A/C compreesor (there fore low pressure) you never add freon to the high pressure (discharge side) of the system. This recharging is supposed to be done by service people with the correct knowledge and the equipment to prevent leakage of freon( one of the ozon depleating gases) to the atmosphere.
Wiki User
∙ 16y ago
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