A/C - Revised Evacuation Procedures

Bulletin Number: 93-1-15
Reference Number: 331205
Publish Date: 3/93

Subject:
SERVICE MANUAL UPDATE - SECTION 1B - A/C SYSTEM EVACUATION USING ACR4

Models Affected:
1993 TRANS SPORT AND FIREBIRD MODELS

This bulletin serves to cancel and supersede the first paragraph of the "Evacuation" procedures under "Refrigerant Recovery and Recycling, Adding Oil, and Evacuation and Recharging Procedures" in Section 1B of all 1993 Trans Sport and Firebird Service Manuals. The first paragraph under "Evacuation" should read as follows:

The ACR4 unit tank must contain sufficient R-134a refrigerant for A/C system charging. Check the amount of refrigerant in the tank by simultaneously pressing "RESET" and "ENTER" on the keypad to enter the diagnostic mode. Once in the diagnostic mode, press "7". When "7" is pressed, the ACR4 unit will display the amount of R-134a refrigerant available in the tank. If less.than 3.6 kg (8 lbs.) is displayed, add new refrigerant to the tank. Refer to the manufacturer's instructions for adding refrigerant.