Ignition Coil(S) Not Operating Properly
TOOLS REQUIREDJ 39200 Digital Multimeter
1. Turn OFF the ignition switch.
2. Disconnect the distributor lead and wiring from the ignition coil.
NOTE: Do not insert the J 39200 digital multimeter probe into the ignition coil connectors. The female terminals could be deformed, resulting in intermittent operation. Only make contact with the front edge of the terminals.
3. Connect an ohmmeter as shown.
- Use the high scale.
- If the reading is not infinite, replace the coil. Refer to Ignition Coil and ICM Replacement (HVS). Service and Repair
4. Connect an ohmmeter as shown.
- Use the low scale.
- The reading should be 0.1 ohms. If not, replace the coil. Refer to Ignition Coil and ICM Replacement (HVS). Service and Repair
5. Connect an ohmmeter as shown.
- Use the high scale.
- If the reading is not 5-25k ohms, replace the coil. Refer to Ignition Coil and ICM Replacement (HVS). Service and Repair
6. Reconnect the distributor lead and wiring to the coil.