Ignition System: Service Precautions

DURASPARK III

The Duraspark ignition modules are not electrically interchangeable. Duraspark III can be distinguished by having a brown wiring grommet.

The DURASPARK III is similar in operation to the Duraspark II. The only operational difference is that in place of the distributor stator assembly signal causing the ignition module to interrupt primary circuit current, a signal from the EEC System does this. All other system operations are the same.


Before proceeding with system diagnosis, ensure battery is fully charged and all accessories are ``Off.'' Inspect all vacuum hoses and spark plug wires for proper routing and secure connections. Inspect engine compartment ignition wiring harness and connectors for signs of insulation damage, burning, overheating and loose or broken connections. Repair as necessary.