Section 1 · Pages 7–24 (18 pages)

General Information

From the 1991 GMC Light Duty Truck Fuel, Emissions and Driveability Manual

How the manual is used for diagnosis, the visual and physical underhood inspection, and engine component location views for every engine and series: 2.5L and 2.8L S Series, 4.3L in S/T, C/K, G, M/L and P Series, 5.0L and 5.7L C/K, 5.7L G, R/V and P, and 7.4L C/K, R/V, G and P.

Read this section free, starting at page 7

What this section covers

  • Visual and physical underhood inspection
  • Component locations, 2.5L and 2.8L S Series
  • Component locations, 4.3L by series
  • Component locations, 5.0L and 5.7L
  • Component locations, 7.4L
Year
1991
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
C/K, R/V, P, G, S/T, M 10–30
Publication
X-9136
Pages
406

What’s inside

Fuel and emissions manual

  1. 1General Informationpp. 7–24
  2. 2Driveability Symptomspp. 25–44
  3. 3Computer Command Control (Scan Tool Diagnosis)pp. 45–254
  4. 4Fuel Control System (TBI 220 and 700)pp. 255–300
  5. 5Evaporative Emission Control System (EECS)pp. 301–308
  6. 6Ignition System and ESTpp. 309–318
  7. 7Electronic Spark Control (ESC)pp. 319–326
  8. 8Air Management Systempp. 327–336
  9. 9Exhaust Gas Recirculation (EGR) Systempp. 337–352
  10. 10Automatic and Manual Transmission Controlspp. 353–360
  11. 11Positive Crankcase Ventilation (PCV)pp. 361–366
  12. 12Thermostatic Air Cleaner (THERMAC)pp. 367–372
  13. 13Special Toolspp. 373–380
  14. 14Abbreviations and Glossary of Termspp. 381–384
  15. IndexAlphabetical index of subjects with section and page references.pp. 385–406

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