Hombre S Regular Cab 4WD V6-4.3L (1999)
Refrigerant Filter: Technical Service Bulletins
A/C - Suction Line Screen Kit Recommendations
TSB IB04-12-S003
J 44551 A/C Suction Screen Kit Repair Recommendations And Procedures After Compressor Failures
Issue Date: March, 2004
Affected Vehicles
1996-2000 Isuzu Hombre (TH) and 2003-2004 Isuzu Ascender (US).
Service Information
After a compressor failure, it is extremely important to eliminate and/or contain the debris that causes repeat repairs. The debris generated from a
compressor failure is discharged into the compressor suction line, the discharge line, the condenser and the liquid line. The use of the J 44551 Suction
Screen Kit DOES NOT replace the need for liquid line filters as described in the vehicle Service Manual. Liquid line filters should be used whenever
possible (after a catastrophic compressor failure) to protect the expansion device (orifice tube or TXV) from debris.
Analysis of failed replacement compressors show the debris discharged into the INLET side of the compressor (suction line) is often pulled into the
replacement compressor. It is important to keep this debris out of the new compressor to avoid repeat compressor failure. The J 44551 Suction Screen
Kit is designed to help protect the NEW (replacement) compressor from ingesting debris that was sent into the SUCTION side of the system during a
compressor failure.
The J 44551 kit supplies your dealership with the right tools and supplies to cover the Delphi HD6, HU6 and HT6 compressors for most Isuzu
applications. Delphi V5 and V7 compressors already have this screen installed in the suction port of the compressor and do not need an additional screen
installed. Refer to the Service Manual for identification of Delphi compressors.
Service Procedure
Tools Required
J 44551 Suction Screen Kit
The J 44551 Suction Screen Kit contains three different screen sizes. It is important to select the correct size screen that will press fit into the suction
port of the compressor hose assembly. The screen should not be installed loose inside the hose assembly.
Installation Procedure
1.
Evacuate the air conditioning system completely using the applicable recovery equipment.
2.
Remove the bolt that attaches the manifold of the muffler assembly hose to the air conditioning compressor.
3.
Use the Suction Port Sizing Tool in order to determine the appropriate size filter screen (see figure 1).
