Trooper LS V6-3.5L (1998)
4. Connect the high pressure charging hose of the manifold gauge to the high pressure side service valve of the vehicle.
5. Place the refrigerant container up right on a weight scale.
Note the total weight before charging the refrigerant.
a. Open refrigerant container valve.
b. Open low side valve on the manifold gauge set. Refer to the manufacturer's instruction's for a weight scale charging station.
6. Perform system leak test.
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Charge the system with approx. 200 g (0.44 lbs) of HFC-134a.
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Make sure the high pressure valve of the manifold gauge is closed.
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Check to ensure that the degree of pressure does not change.
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Check for refrigerant leaks by using a HFC134a leak detector.
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If a leak occurs, recover the refrigerant. Repair the leak, and start all over again from the first step of evacuation.
7. If no leaks are found, continue charging refrigerant to the air conditioning system.
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Charge the refrigerant until the scale reading decreases by the amount of the charge specified.
Specified amount g (lbs.) = 750 (1.65)
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If charging the system becomes difficult:
1. Run the engine at idle and close all the vehicle doors.
2. Turn A/C switch "ON".
