C 2500 Suburban 2WD V8-5.7L VIN R (1996)
Evaporator Core: All Technical Service Bulletins
A/C - Insufficient Cooling Diagnosis Table Updated
File In Section: 1 - HVAC
Bulletin No.: 66-12-06
Date: September, 1996
SERVICE MANUAL UPDATE
Subject:
Section 1B - HVAC - Updated CCOT Insufficient Cooling Diagnosis Table
Models:
1991-97 Chevrolet and GMC C/K Models
This bulletin updates Section 1B "Heater, Ventilation, and Air Conditioning" of the 1991-97 C/K Truck Service Manuals.
The current Service Manual air conditioning diagnostic information tables have been updated to better address the possibility of a missing or damaged
orifice tube in the air conditioning system. The revised chart "A" will send the technician to both charts "D" and "E" in the event that the evaporator inlet
and outlet pipes are the same temperature while the air conditioning system is in operation.