A/C - System Visual Inspection During PDI
Classification: HA94-OO6Models: See Below
Reference: TECHNICAL BULLETIN NTB94-102
Date: November 29, 1994
NON FACTORY INSTALLED A/C SYSTEM QUALITY
APPLIED MODELS:
U13 Altima, B13 Sentra, Truck/Pathfinder
SERVICE INFORMATION
There are three important areas of A/C quality that should be inspected during vehicle PDI. During installation or when performing PDI, your attention in the listed areas will further ensure continued customer satisfaction.
1. Drain hose and Bracket (Truck and Pathfinder only)
With the introduction of the 1994, V6 Pathfinder and Truck, the spot welded bracket which retained the drain hose was removed. For dealer/port A/C kit installation, a bolt-on bracket was added to the kit.
The new bolt-on bracket serves two functions: 1 allows adjustment of drain hose away from other components such as the exhaust system, 2 directs condensate from evaporator to exit at a desired location.
1. Position the drain hose straight down. The white dot should be on top.
2. Install the drain hose so it completely covers the nipple on the evaporator case.
3. Remove the two reusable bolts on the floor pan.
4. Install the drain hose retaining bracket (DO NOT over-tighten bolts).
Place drain hose into retaining bracket.
2. Tube, Hose, and clip installation
All liquid and suction tubes are made from aluminum. They could be damaged (for example, hole punctures) if improperly installed.
Remember to maintain a minimum 1/2" space between all tubes and other components. Always use retaining devices to properly secure the tubes and hoses.
In addition, the suction tube is insulated with a foam material. This foam reduces the amount of engine heat transfer to the refrigerant. Do not remove the foam from the hose
3. Air Guides, Foam, and Rubber Seal Installation
Air guides are important for a properly working A/C system. They can lower the evaporator outlet temperature up to 5~ F. The air guides also assist in maintaining engine temperatures within the design range. Therefore, remember to properly install all foam, plastic, and rubber air guides to maximize A/C system performance.