A/C - Poor Cooling in High Humidity Conditions: Overview
Bulletin No.: 03-01-39-003ADate: June 09, 2003
TECHNICAL
Subject:
Insufficient A/C Cooling During Periods of High Humidity (Replace A/C Compressor Hose)
Models:
2002 & 2003 Saturn VUEs
Attention:
Fixed Operations Manager, Parts Manager, and Technician
Supercede:
This bulletin is being revised to update the models affected. Please discard Corporate Bulletin Number 03-01-39-003 (Section 01 - HVAC).
Vehicles Built Up To and Including the VIN Breakpoints shown.
Vehicles built after the above VIN breakpoints have the new A/C compressor hose installed.
Condition
Some customers may comment on insufficient cooling during periods of high humidity with the A/C on.
Cause
Insufficient cooling may be the result of a low refrigerant charge caused by a condition known as "liquid slugging". This condition may occur after the vehicle sits for an extended period of time which may allow liquid refrigerant to migrate to the low point of the A/C system or the A/C compressor. During engine start-up and/or during compressor engagement at high speeds, the compressor is unable to compress the liquid refrigerant and forces the liquid refrigerant out through the A/C system pressure relief valve (PRV).
Correction
Replace A/C compressor hose using the procedure in this bulletin.
Parts Information
Claim Information:
To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System for D3082 (Compressor discharge hose and/or line replace)
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