GM 10308247
A/C Hose

The compressor hose replacement process starts by detaching the negative Battery Cable followed by removing the air cleaner and duct assembly and removing any present cross vehicle brace. First recover refrigerant and afterward remove the compressor hose nut from the condenser before placing the hose aside. The technician disconnects the compressor hose nut from the accumulator before placing the hose to the side. After raising the car for support the technician must remove the lower air deflector. Remove both compressor line and bolt from their positions before you can take out the compressor hose assembly. All discarded used equipment must be replaced with fresh sealing washers and new o-rings. The new compressor hose assembly requires installation by lubricating the new o-ring with mineral base 525 viscosity refrigerant oil before installing it along with new sealing washers. Secure and connect the compressor hose assembly with its bolt at the compressor location while tightening the bolt to 33 n.m (24 lbft). Install the lower air deflector then lower the vehicle before connecting the compressor hose to the accumulator while tightening the compressor hose nut to 16 n.m (12 lb ft). The compressor hose requires connection to the condenser followed by installation of the compressor hose nut while tightening it to 16 n.m (12 lb ft). Evacuate the system while recharging it before inspecting all components for any sign of leakage. Reinstallation includes the cross vehicle brace when present together with air cleaner and duct assembly followed by negative Battery Cable reconnection.

The procedure to replace the compressor hose assembly starts with recovering the refrigerant followed by left front fender upper diagonal brace removal and subsequent air cleaner assembly removal. Remove the a/c compressor hose nut from the hose before detaching it from the condenser unit. You should begin by dislodging the a/c compressor hose nut followed by removing the a/c compressor hose from its connection to the accumulator. Separate the lower air deflector after which take the a/c compressor hose nut off the a/c compressor and detach the a/c compressor hose from the a/c compressor. The replacement process requires disposal of all the decommissioned o-rings and sealing washers. The installation procedure requires mounting new sealing washers to the a/c compressor hose assembly and then fastening the a/c compressor hose to the a/c compressor while tightening the a/c compressor hose nut to 33 n.m (24 lb ft). After installing the lower air deflector the a/c compressor hose assembly needs a new o-ring seal before connecting the hose to the accumulator using an a/c compressor hose nut which should be tightened to 16 n.m (12 lb ft). The a/c compressor hose connects to the condenser by using the a/c compressor hose nut while tightening it to 16 n.m (12 lb ft). The final step includes reinstalling the upper diagonal brace of the left front fender and air cleaner assembly while performing a/c system evacuation and recharging and running a halogen leak detector (J 39400-A) on component fittings.

Staring the replacement of the A/C Compressor hose assembly requires the initial step to recover refrigerant. You must begin by taking off the right front fender upper diagonal brace next to removing the air cleaner assembly. Begin by disconnecting the A/C Compressor hose from the condenser after you have taken off the A/C Compressor hose nut . The A/C Compressor hose requires two nut removals to disconnect the hose from both its condenser and accumulator endpoints. Raise the vehicle until stable and support it while you eliminate the lower air deflector. Then discard used o-rings and sealing washers when you remove the nut from the A/C Compressor hose assembly at the A/C Compressor and separate the hose assembly. Mineral base 525 viscosity refrigerant oil serves to lubricate new o-ring seals before installation of the seal and sealing washers onto the A/C Compressor hose assembly. The hose assembly attachment must secure to the A/C Compressor rear end using the hose assembly nut until it reaches 33 n.m (24 lb ft). Accomplish the lower air deflector reinstallation before you lower the vehicle. Then attach the A/C Compressor hose nut at the accumulator and tighten it to 16 n.m (12 lb ft). Connect the A/C Compressor hose and nut to the condenser using a torque of 16 n.m (12 lb ft) and follow the same procedure for attaching the hose and nut to the condenser tube leading from the condenser to the accumulator. To complete the repair install the right front fender upper diagonal brace followed by the air cleaner assembly while the a/c system requires evacuation and recharging before testing for fittings leaks through the halogen leak detector (J 39400-A).

The first step of condenser tube replacement requires refrigerant recovery and removal of air cleaner assembly and cross vehicle brace as well as vacuum Brake Booster. The procedure requires detachment of the condenser tube from support bracket and radiator air baffle along with the condenser tube nut from the condenser. First disconnect the condenser tube from the condenser, set the vehicle to a lower height, then disconnect the electrical connector from the a/c refrigerant pressure sensor. Proceedure begins with disconnecting the evaporator tube from the condenser tube by loosing the evaporator tube nut. Then remove the condenser tube while disposing of the o-ring. The a/c pressure sensor should be removed from the condenser tube. When installing the new condenser tube secure the a/c pressure sensor while placing a new o-ring between its elements before fastening the tube to the support bracket. After attaching the condenser tube to the evaporator tube tighten the evaporator inlet tube nut to 27 n.m (20 lb ft). Reinstall the a/c refrigerant pressure sensor electrical connector while raising and supporting the vehicle to install the condenser tube by tightening its nut to 27 n.m (20 lb ft). At the end the technician should replace the lower radiator air baffle alongside the vacuum Brake Booster while reinstalling cross vehicle brace and air cleaner assembly before conducting an a/c system leak test with the halogen leak detector (J 39400-A) after evacuation and recharging is performed.

Tighten it to 27 N.m (20 lb ft).

Raise and support the vehicle.

Reinstall the lower air deflector, add a new O-ring seal to the A/C compressor hose assembly, and connect the A/C compressor hose to the accumulator, securing it with the A/C compressor hose nut tightened to 16 N.m (12 lb ft).

Finally, evacuate and recharge the A/C system and perform a leak test on the fittings using the Halogen Leak Detector (J 39400-A).

Attach the A/C pressure sensor to the new condenser tube and install a new O-ring. Secure the condenser tube to the support clip, connect the evaporator tube, and tighten the evaporator tube nut to 27 N.m (20 lb ft).

Remove the left front fender upper diagonal brace and the air cleaner assembly.

Install the new O-ring seals and sealing washers onto the compressor hose assembly, attach the compressor hose assembly to the rear of the compressor, install the compressor hose assembly nut, and tighten it to 33 N.m (24 lb ft).

Reinstall the condenser tube to the support clip, followed by the vacuum brake booster and the air cleaner assembly.

Loosen the condenser tube nut at the condenser and disconnect the condenser tube from the condenser.

Coat the new O-ring seals with mineral base 525 viscosity refrigerant oil before installing them onto the evaporator tube.

Remove the air cleaner assembly, vacuum brake booster, and brake pressure modulator valve bracket.

Remove the left front fender upper diagonal brace, the air cleaner assembly, and the vacuum brake booster.

Install the accumulator tube to the evaporator block fitting.

Evacuate and recharge the A/C system, and perform a leak test on the fittings using the Halogen Leak Detector (J 39400-A).

Raise and support the vehicle, then remove the lower air deflector.

Attach the compressor hose assembly to the rear of the compressor, install and tighten the compressor hose assembly nut to 33 N.m (24 lb ft).

Reinstall the lower air deflector, add a new O-ring seal to the A/C compressor hose assembly, and connect the A/C compressor hose to the accumulator, securing it with the A/C compressor hose nut tightened to 16 N.m (12 lb ft).

Attach the new O-ring seal to the A/C compressor hose assembly, then connect the hose to the accumulator and secure it with the hose nut tightened to 16 N.m (12 lb ft).

Evacuate and recharge the A/C system and perform a leak test on the fittings using the Halogen Leak Detector (J 39400-A).