LEMON Manuals
: Even more car manuals for everyone
Home
>>
GMC
>>
1992
>>
Magnavan 6.2 J
>>
Repair and Diagnosis
>>
Engine Performance
>>
Engine Controls - Adjustments
Engine Controls - Adjustments
Expand All (for easy ctrl-f)
Collapse All
Engine Mechanical
Valve Clearance
Ignition Timing (Gasoline)
4-Cylinder Ignition Timing
2.5L (VIN E)
V6 Ignition Timing
All Models (Except 3.8L VIN L)
V8 Ignition Timing
All Models (Except Diesel)
Injection Pump Timing (Diesel)
6.2L & 6.5L
Idle Speed & Mixture
Idle Speed & Mixture (Gasoline)
Notes
Controlled Idle Speed Check
Minimum Idle Speed Adjustment (7.4L Only)
Idle Speed (Diesel)
Curb Idle
Fast Idle
Throttle Position Sensor (TPS)
TPS Adjustment ( Gasoline)
Notes
2.8L (VIN R)
TPS Adjustment (Diesel)
6.2L Light Duty (VIN C)
6.2L Heavy Duty (VIN J)
WASTEGATE Actuator Adjustment (Turbo)
Notes
Engine Controls - Adjustments
4.3L PFI (VIN Z)