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HOMESERVICE MANUALSCHEVROLET1998EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMDISTRIBUTORDESCRIPTION AND OPERATION
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN R

Distributor: Description and Operation

1998 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION 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.
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.