OEM 2008 Chevrolet Trailblazer A/C Hose

2008 Chevrolet Trailblazer Parts Questions & Experts Answers

• Q: How to replace the A/C Hose assembly (LL8) on 2008 Chevrolet Trailblazer?

  A: The first step to replace the compressor hose assembly (LL8) consists of recovering refrigerant. The fittings of installed components require leak testing using Halogen Leak Detector J 39400-A. Proceed by undocking the compressor hose assembly nut before eliminating the compressor hose assembly from the compressor unit. The replacement process starts with removing the sealing washers and progressing to take off thenictive hose nut from the accumulator then detach the suction hose from the accumulator. The installation involves removing both the O-ring seal together with the lift bracket bolt and also the engine stud nut. Invoke the following procedure to detach the compressor discharge hose from condenser: first disconnect it from the driver wheel opening and then extract the hose nut and its O-ring seals. All open connections must get capped. When you set up the system begin by adding new O-ring seals after which you should attach the compressor discharge hose to the condenser and fasten it with a hose nut that needs to be tightened to 28 N.m (21 lb ft). Install the compressor hose through the driver wheel opening to its connector by applying 48 N.m (35 lb ft) torque on the nut before connecting the compressor suction hose to the engine stud where the nut achieves 48 N.m (35 lb ft) torque. Fasten the suction hose toward the engine lift bracket followed by securing the bolt at 48 N.m (35 lb ft) tension before connecting the hose to the accumulator using a nut at 48 N.m (35 lb ft). The sealing washers need installation before you attach the compressor hose assembly to the compressor using a retaining nut with a torque setting of 33 N.m (24 lb ft). Evacuation and recharging operations must complete the procedure.