Section 1A · Pages 30–49 (20 pages)

Heater

From the 1981 Chevrolet Light Duty Truck 10–30 Service Manual

Standard and auxiliary heaters for C-K and G models: airflow schematics, controls and defroster valve, diagnosis charts for problems such as no airflow, on-vehicle service of the blower, resistor and core, and blower motor and fuse specifications.

Read this section free, starting at page 30

What this section covers

  • Standard heater airflow and controls
  • Auxiliary heater
  • Heater diagnosis
  • Blower, resistor and core service
  • Blower motor specifications
Year
1981
Make
Chevrolet
Vehicle
C/K Trucks, G Vans, Light Duty Trucks, P Forward Control, Trucks
Type
Service Manual
Models
C, K, G, P 10–35
Publication
ST-330-81
Pages
1,157

What’s inside

General information

  1. Foreword and Table of ContentsForeword explaining how the manual is organized and which companion books hold overhaul procedures and wiring diagrams, the important safety notice, and the section index for the whole book.pp. 1–4
  2. 0AGeneral Informationpp. 5–9
  3. 0BMaintenance and Lubricationpp. 10–29

Heating and air conditioning

  1. 1AHeaterpp. 30–49
  2. 1BAir Conditioningpp. 50–111

Frame, sheet metal and body

  1. 2AFrame and Body Mountspp. 112–115
  2. 2BBumperspp. 116–119
  3. 2CChassis Sheet Metalpp. 120–131
  4. 2DCab and Bodypp. 132–195

Steering, suspension, wheels and tires

  1. 3AFront Alignmentpp. 196–201
  2. 3B1Steering Linkagepp. 202–211
  3. 3B2Manual Steering Gearpp. 212–219
  4. 3B3Power Steering Systempp. 220–237
  5. 3B4Steering Columnspp. 238–291
  6. 3CFront Suspensionpp. 292–333
  7. 3DRear Suspensionpp. 334–343
  8. 3EWheels and Tirespp. 344–353

Axles and brakes

  1. 4APropeller Shaftpp. 354–365
  2. 4BRear Axlepp. 366–393
  3. 4CFront Wheel Drivepp. 394–397
  4. 5Brakespp. 398–453

Engine

  1. 6Engine: General Information and Diagnosispp. 454–473
  2. 6A1In-Line 6 Enginepp. 474–507
  3. 6A4Small Block V8 Enginepp. 508–543
  4. 6A5Mark IV V8 Enginepp. 544–575
  5. 6A65.7 L Diesel V8 Enginepp. 576–621
  6. 6BEngine Coolingpp. 622–639
  7. 6CEngine Fuelpp. 640–651
  8. 6C1Carburetor Model 1MEpp. 652–667
  9. 6C2Carburetor Model 2SEpp. 668–693
  10. 6C3Carburetor Model M2MEpp. 694–715
  11. 6C4Carburetor Model M4Mpp. 716–743
  12. 6C5Fuel Systempp. 744–761
  13. 6DEngine Electricalpp. 762–829
  14. 6EEngine Emission Controlspp. 830–857
  15. 6FEngine Exhaust Systempp. 858–863
  16. 6GEngine Performance Specificationspp. 864–867

Transmission

  1. 7AAutomatic Transmissionpp. 868–917
  2. 7BManual Transmissionpp. 918–941
  3. 7CClutchpp. 942–955
  4. 7ETransfer Casepp. 956–973

Electrical and accessories

  1. 8AElectrical – Body and Chassis: Lighting Systempp. 974–995
  2. 8BElectrical and Wiringpp. 996–1007
  3. 8CInstrument Panel and Gagespp. 1008–1125
  4. 9Accessoriespp. 1126–1151
  5. 10Metric and Fastener Informationpp. 1152–1157

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