Chevrolet Workshop Service and Repair Manuals > G 30 1 Ton Van L6-250 4.1L VIN D 2-bbl (1983) > Powertrain Management | Tune-up and Engine Performance Checks | Ignition Timing | Timing Marks and Indicators | System Information | Locations

Spark Plug Wire <--> [Ignition Cable] > < Number 1 Cylinder Location

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TIMING MARK 4.1L (250), 4.8L (292)

Powertrain Management
Tune-up and Engine Performance Checks
Ignition Timing
Timing Marks and Indicators
System Information
Locations

Spark Plug Wire <--> [Ignition Cable] > < Number 1 Cylinder Location