K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Air Duct: All Technical Service Bulletins
Intake Air Duct - Reduced Engine Performance
GMC NUMBER:
91-6-44
GROUP:
6 Engine Diagnosis
DATE:
December, 1990
CORPORATE
NUMBER:
066001
SUBJECT:
REDUCED ENGINE PERFORMANCE
MODELS:
1988-91 C/K LIGHT DUTY TRUCKS - ALL ENGINES
Figure 1