Service Procedure

1. Open hood.

Location of Date Code on Distributor:

2. Check the distributor for the manufacturer's date code located just below the distributor cap on rim of base (See Illustration). If date code is 5L27 proceed to Step 3. All others, no repair required, proceed to Step 7.
3. Remove distributor cap. Remove rotor, if necessary, to inspect module. FAIRCHILD modules are identified by brass colored ferrules on attaching screw holes. DELCO modules are identified by steel colored ferrules on attaching screw holes and white dot in center of the module.

4. DELCO modules need not be replaced; reassemble distributor and proceed to Step 7.

5. Replace FAIRCHILD module, with service P/N 1875990, following instructions in the 1986 Chevrolet Chevette Service Manual (ST-389-86) page 6D-24.

6. Check ignition timing; set to specifications if required.

7. Install Campaign completion label and close hood.