Section 10 · Pages 231–240 (10 pages)

Automatic and Manual Transmission Controls

From the 1988 GMC Light Duty Truck Fuel, Emissions and Driveability Manual

ECM-controlled transmission functions: the transmission converter clutch (TCC) system, the downshift control system, and the manual transmission shift light system on 2.5L and 2.8L engines, with diagnosis and the shift light check.

Read this section free, starting at page 231

What this section covers

  • Transmission converter clutch (TCC)
  • Downshift control system
  • Shift light system
  • Diagnosis
Year
1988
Make
GMC
Vehicle
C/K Trucks, G Vans, Light Duty Trucks, M Vans (Astro/Safari), P Forward Control, R/V Trucks, S/T Trucks, Trucks
Type
Fuel & Emissions, Supplement
Models
R/V, G, P, S/T, M, C/K 10–30
Publication
X-8836
Pages
290

What’s inside

Front matter

  1. Foreword and ContentsForeword listing the engines covered and the service manuals this book supplements, metric fastener cautions, the action symbols used in the procedures, and the table of contents.pp. 3–6

Manual

  1. 1General Informationpp. 7–24
  2. 2Driveability Symptomspp. 25–30
  3. 3Computer Command Control (Using Scan Tool Diagnosis)pp. 31–148
  4. 4Fuel Control Systempp. 149–192
  5. 5Evaporative Emission Control System (EECS)pp. 193–198
  6. 6Ignition System/ESTpp. 199–206
  7. 7Electronic Spark Control (ESC)pp. 207–210
  8. 8Air Management Systempp. 211–220
  9. 9Exhaust Gas Recirculation (EGR) Systempp. 221–230
  10. 10Automatic and Manual Transmission Controlspp. 231–240
  11. 11Positive Crankcase Ventilation (PCV)pp. 241–244
  12. 12Thermostatic Air Cleaner (THERMAC)pp. 245–250
  13. 13Special Toolspp. 251–258
  14. 14Abbreviations and Glossary of Termspp. 259–262
  15. 15Computer Command Control (Without Using Scan Tool Diagnosis)pp. 263–290

Other manuals for this vehicle