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GMC
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1994
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C3500 HD 7.4 N, Standard
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Adjustment
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Engine Controls - Adjustments - Gasoline
Engine Controls - Adjustments - Gasoline
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Engine Mechanical
Valve Clearance
Ignition Timing
V6 Ignition Timing
V8 Ignition Timing
Idle Speed & Mixture
Idle Speed & Mixture
Notes
Controlled Idle Speed Check
Minimum Idle Speed Adjustment (7.4L)
Throttle Position (TP) Sensor