Durango 4WD V8-5.9L VIN Z (1998)
14.
Disassemble the two bolts attaching the expansion valve to the rearward (shorter) section of the underbody refrigerant lines.
NOTE:
THE REARWARD SECTION OF THE UNDERBODY REFRIGERANT LINES SHOULD BE PLUGGED UNTIL THE NEW EXPANSION
VALVE IS READY TO BE INSTALLED.
15.
Remove the caps, then install the new expansion valve p/n 55055876AB onto the rearward section of the underbody refrigerant line mounting
flange and secure with two screws. Tighten the mounting screws to 11.4 N.m (100 in. lbs.).
16.
Remove the tape or plugs from the forward section of the underbody refrigerant lines. Install new O-rings onto the mounting flange then, align the
expansion valve ports and stud with the block fitting on the forward section of the underbody refrigerant lines. secure the lines with the mounting
bolt.
17.
Install the underbody refrigerant lines. Refer to the 1999 Durango Service Manual (Publication No. 81-370-9116), page 24-44 for information
regarding Underbody Refrigerant Line installation procedures.
18.
Install the liquid refrigerant line that is routed between the filter/drier and the front expansion valve. Refer to the 1999 Durango Service Manual
(Publication No. 81-370-9116), page 24-39 for information regarding Liquid Line - Rear installation procedures.
19.
Follow the Refrigerant Recovery procedures identified in the 1999 Durango Service Manual (Publication No. 81-370-9116), pages 24-28 and
24-29 and evacuate the A/C system.
20.
Weigh all compressor oil that was reclaimed from the A/C refrigerant and/or drained from the A/C components during this repair procedure. Add
this amount of new refrigerant oil (SP-20 PAG oil) p/n 04886129AA to the A/C system.
NOTE:
IF THE RECYCLING STATION IS NOT EQUIPPED WITH A DEVICE TO ADD OIL TO AN EVACUATED SYSTEM, OIL COULD BE
ADDED TO THE A/C SYSTEM BY REMOVING THE SUCTION AND DISCHARGE LINES AT THE COMPRESSOR AND INSTALLING
THE OIL DIRECTLY INTO THE COMPRESSOR.
21.
After the A/C system has been evacuated and tested for leaks, add 32 oz. of R134a refrigerant to the A/C system. A R134a refrigerant
recovery/recycling/charging station that meets SAE Standard J2210 must be used to charge the A/C system. Refer to the operating instructions
supplied by the equipment manufacturer for the proper care and use of this equipment.
22.
Clean all dirt and debris from the A/C underhood label then, install new label p/n 55055728AD over the existing label.
23.
Verify proper operation of the A/C system. If necessary, refer to the 1999 Durango Service Manual (Publication No. 81-370-9116), pages 24-13
through 24-16 for information regarding front A/C performance testing and Technical Service Bulletin 24-16-98 for rear A/C performance testing.
Rear A/C Evaporator Seal
1.
Disconnect the battery negative cable.
2.
Using a small flat-bladed screw driver, carefully pry the trim plugs from the A-Pillar grab handle on the passenger side A-Pillar.
