Procedure For Detection Of Refrigerant Leaks (ITB96-041)

Publication date: 1996-09-11
Reference number: ITB96-041
Supersedes refnos: ITB95-004

PROCEDURE FOR DETECTION OF REFRIGERANT LEAKS

TECHNICAL SERVICE BULLETIN

Reference Number(s): ITB95-004, Date of Issue: September 11, 1996

REVISED PROCEDURE FOR DETECTION OF REFRIGERANT LEAKS

Model(s): All Infiniti Models

Classification: HA96-004

Section: Heater & Air Conditioner

Bulletin No.: ITB96-041

Date: September 11, 1996

NOTE: This bulletin supersedes ITB95-004/HA95-001, dated March 10, 1995.

SERVICE INFORMATION

An updated refrigerant leak detection procedure is now included in all service manuals beginning with the 1997 model year.

The revised procedure is applicable to all models and includes the following changes or additions:

A minimum charge specification prior to conducting the leak check.
The recommended minimum ambient temperature for effective leak detection.
Recommended probe tip moving speed and position away from the point to be checked.
Proper cleaning of A/C components and fittings prior to leak checking.
Rechecking a suspected leak.
Checking procedures for specific A/C components such as the compressor, liquid tank, service valves and cooling unit.
Elimination of soap and water as a secondary check method.

In some cases you may not detect a leak readily if both the high and low side pressures are equalized. The revised procedure introduces a second test condition that can possibly detect a leak (or leaks) that the first test condition could not.

The service manuals listed below will contain the updated leak detection procedures:

1997 I30
1998 J30
1997 Q45

Please reference service procedures under Contents at the beginning of the HA section. Within this section refer to "Checking Refrigerant Leaks" to find the leak detection procedures.

NOTE: For models with service manuals not yet published or received, please refer to another model that is released because the procedure is the same for all models.