Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Install new O-ring seals. Refer to O-RING REPLACEMENT .
Install the retaining bracket (6) to the accumulator.
NOTE: Refer to FASTENER NOTICE .
Install the retaining bracket bolt (5).
Tighten

Tighten the bolt to 10 N.m (89 lb in).
Install the accumulator (3).
Install the accumulator bracket nut (4).
Tighten

Tighten the nut to 9 N.m (80 lb in).
Install the nut (2) to the evaporator fitting.
Tighten

Tighten the nut to 16 N.m (12 lb ft).
Install the compressor hose to the accumulator.
Install the compressor hose nut to the accumulator.
Tighten

Tighten the nut to 16 N.m (12 lb ft).
Connect the electrical connector to the A/C low pressure switch.

Fig 1: Install Retaining Bracket, Bolt & Accumulator
Courtesy of GENERAL MOTORS CORP.
Install the nut to the evaporator tube (3).
Tighten

Tighten the nut to 25 N.m (18 lb ft).

Fig 2: Install Nut To Evaporator Tube
Courtesy of GENERAL MOTORS CORP.
Install the evaporator tube to the evaporator.
Install the evaporator tube nut to the evaporator.
Tighten

Tighten the nut to 16 N.m (12 lb ft).
Evacuate and recharge the system. Refer to Refrigerant Recovery and Recharging .
Leak test the fittings of the component using the J 39400-A

Fig 3: Install Evaporator Tube & Nut To Evaporator
Courtesy of GENERAL MOTORS CORP.