A/C - Compressor Oil Service Procedures
T-SB-0048-08Rev1
April 24, 2008
HVAC Compressor Oil Service Procedures
Service Category
Vehicle Interior
Section
Heating/Air Conditioning
Market
USA
Applicability
TSB REVISION NOTICE
^ June 4, 2008 Rev1:
^ Applicability has been updated to include 2008 model year vehicles.
^ The Parts Information section has been added.
A Any previous printed versions of this service bulletin should be discarded.
Introduction
When replacing the HVAC compressor for any reason it is critical to adjust the amount of oil in the replacement compressor before installation on the vehicle. Failure to adjust the amount of oil in the compressor can lead to decreased A/C performance. Follow the procedures listed below to set the correct amount of oil in the replacement HVAC compressor.
Parts Information
Warranty Information
Service Procedure
1. Check for debris in the discharge port of the compressor.
^ If NO debris is found only replacement of the compressor is necessary.
^ If debris IS found replacement of the compressor AND cooler dryer is necessary.
2. Inspect and adjust compressor oil.
A. Gradually discharge inert gas (helium) from the service valve of the new replacement compressor.
B. Look at the name plate on the production compressor and refer to Figure 3 and the chart below to determine the amount of oil to drain from the new replacement compressor before installation.