Tools - A/C Leak Detector Maintenance Kit Availability: Overview

File In Section: 1 - HVAC
Bulletin No. 43-12-18A
Date: March, 1995

Subject:
J 39400 A/C Leak Detector Maintenance Kit Availability

Models:
1995 and Prior Vehicles with A/C

This bulletin is being reissued to remind dealers to perform maintenance on their A/C leak detector prior to the start of the A/C season. It also includes an update on essential tool status. Please discard Corporate Bulletin Number 431218 (Group Reference 1 - HVAC)

Important:
TUNE UP YOUR LEAK DETECTOR BEFORE A/C SEASON BEGINS!

Buick, Oldsmobile and GM of Canada made the J 39400-TUNE-UP essential last season.

Cadillac made the J 39400-TUNE-UP essential this spring. (Cadillac franchises dualed with Buick and/or Oldsmobile will not receive another J 39400-TUNE-UP).

Remember:
Even if your leak detector was tuned up last season, it may be time for another tune-up!

CONDITION
Inadequate maintenance reduces the performance of the J 39400 A/C leak detector.

CORRECTION

���9Leak Detector:

A new maintenance kit, P/N J 39400-TUNE-UP is available from Kent-Moore Tool, which contains the following:

1. Replacement filters (12) (P/N E7076EX includes air flow balls)
2. Replacement air flow balls (4)
3. Replacement calibrated reference bottle (P/N K9344AH)
4. Replacement sensor (P/N H10N04)
5. Cotton swab cleaning sticks (10)
6. Safety pin
7. Tune-up/maintenance date label reminder
8. Instructions

To guarantee uninterrupted service during peak cooling season, ORDER THE J 39400 TUNE-UP KIT ANNUALLY, just before your busy season. Additional tune-up kits or individual components can be ordered as needed.

The J 39400 Leak Detector was shipped to dealers in the spring of 1992 as an essential tool for use on R12 and R134a vehicles. Currently, the J 39400 is the only leak detector which meets GM requirements. Many detectors capable of detecting R12 leaks are not sensitive enough to leak check R134a A/C systems. Even new leak detectors designed for R134a vehicles may not meet GM's sensitivity specifications.

You can extend the life of the sensor and reduce maintenance costs if you calibrate the J 39400 properly and maintain it properly. The J 39400 is a rugged instrument, but it is not indestructible.