Starting System: Description and Operation

1991 Jaguar XJ-6 L6-4.0LSECTION Description and Operation

The Starter circuit supplies battery voltage to the starter motor when the ignition switch is set to the START position. The circuit utilizes a starter solenoid and relay.
When energized, the starter relay connects battery power to the starter solenoid containing pull-in and hold-on coils. The pull-in coil is grounded through the starter motor windings and the electrical current passing through the motor is sufficient to turn the armature. When closed, the solenoid contacts connect full battery power to the starter motor and the armature rotates at full power.

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When to See a Mechanic

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

  • You smell fuel, burning insulation, or see smoke.
  • 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.