FixVault
Home
›
GMC
›
1999
›
Forward Control 7.4 B
›
Repair and Diagnosis
›
Heating, Ventilation & A/C (HVAC)
›
HVAC Control Systems
›
HVAC System
HVAC System
Expand All (for easy ctrl-f)
Collapse All
Specifications
Description
Operation
A/C-Heater Control Panel
Temperature Control Lever
Mode Selector Lever
Fan Blower Switch
Auxiliary Engine Coolant Fan A/C Pressure Switch
P32 Series & P42 Diesel
A/C Compressor High Pressure Cut-Off Switch
A/C Compressor Refrigerant Pressure Switch
Trouble Shooting
A/C Compressor Clutch Does Not Engage
P32 & P42 Gasoline Engines
Diagnostic Aids
P32 & P42 Diesel Engines (With Electronic Fuel Injection)
P42 Diesel Engines (With Mechanical Fuel Injection)
A/C Compressor Clutch Will Not Disengage
P32 & P42 Gasoline Engines
P32 & P42 Diesel Engines (With Electronic Fuel Injection)
P42 Diesel Engines (With Mechanical fuel Injection)
Testing
A/C System Performance
Removal & Installation
Accumulator
Removal & Installation
Compressor
Removal & Installation
A/C Condenser
Removal & Installation
Torque Specifications
Wiring Diagrams