Starter Testing

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Having problems with the Starting Motor?

Unusual Noise

Does the starter "zing" briefly after the engine starts? The starter overrun clutch is bad. Replace the starter, or repair it.

Does the starter occasionally "grind" and not spin the engine? The flywheel has a bad spot. Replace the flywheel.

The starter begins to turn the engine, but then goes click-click-click. This multiple click indicates the battery is low. Jump-start your vehicle, then fully charge the battery.

Starter Does Not Spin

First Check

First, check the battery out. Is the top of the battery spotlessly clean? If not, now is the time to clean it. Remove the battery cable and clean them with a wire brush. Do likewise to the round terminals on the battery. You want shiny metal on both parts. Wash them with a solution of water and baking soda (e.g. Arm & Hammer). This will fizz and nuetralize the acid film on the parts.

After thoroughly clean the battery cables, try it again. If it now starts, congratulations.

Systems check. When you turn the key to ON (before you start it), do the expected dash lamps light up? CHG and OIL lights should both come on. If neither light up, it is likely a power issue. Check the Fusible Link. Check the battery -- if it is below 11.5 volts, charge it up using an external charger (or jump start it).

Pull the headlight switch to ON. Check to ensure the headlamps light up. Now turn the key to START. Do the headlamps dim or go out?

• The headlamps dim. There is a heavy load in the starting circuit
• The headlamps go out. There is a bad connection in the main electrical feed
• The headlamps stay bright. You need to troubleshoot the starter.

If these first checks do not uncover the problem, start troubleshooting.

Troubleshooting

If battery and main power checks out, troubleshoot the starting circuit.

• Turn Key to START
  • The starter clicks or turns
    • If the starter turns, it is working correctly.
    • If the starter clicks but does not turn, remove the negative battery cable, tighten all three nuts on the starter wires, and try again. If the problem continues, replace the starter or inspect it.
  • There is no response. No click, no sound, nothing.
    • Pull the START wire off the starter. It is the small B/Y wire. Connect voltmeter to this wire, and other lead of the VM to the battery Negative post. Have an assistant turn key to START and hold it there. What does the VM read?
      • The voltemeter goes from 0 to 12V when key is turned to START. Starter is suspect. Remove the starter for inspection.
      • The voltmeter stays at 0 when key is turned to START. This indicates a wiring problem. Do not replace the starter. Instead, trace the wire using the Wiring Diagram and fully inspect it.