C 2500 Truck 2WD V8-5.7L VIN R (1997)
Distributor: Description and Operation
Distributor
DESCRIPTION
The distributor is actually an assembly that contains the Camshaft Position (CMP) sensor, cap, rotor and shaft. The distributor is splined by a
helical gear to the camshaft and provides spark to each spark plug wire. when servicing the distributor, it is critical to ensure proper cap sealing to
the distributor body and correct installation to the camshaft. If the distributor is installed a tooth off in relation to the camshaft, a Diagnostic
Trouble Code (DTC) will set. The distributor is not repairable and must be replaced as an assembly.
OPERATION
The distributor connects the ignition coil and spark plugs through secondary wires. The rotor directs the spark to the appropriate cylinder The
distributor has a hall effect switch that connects to the VCM through the primary engine harness and provides cylinder identification information.
