It’s always a concern when your car’s engine light comes on unexpectedly.

Next are some common reasons why it may come on:

  • Replace your vehicle’s oxygen sensor(s) – This sensor determines the level of oxygen in the exhaust to assist the engine to run at maximum efficiency.
  • Replace catalytic converter(s) with new OE catalytic converter(s) – this warning is usually seen in older vehicles that have not kept up with regular servicing.
  • Inspect for loose fuel cap and tighten or replace as necessary – Even a loose fuel cap can trigger the engine light. If this is the case, the fuel cap may need to be tightened or replaced.
  • Replace ignition coil(s) and spark plug(s) – these two problems go hand in hand. If a problem occurs with the ignition coil, this can then have an effect on the spark plugs.
  • Replace thermostat – this can be a common problem in high heat regions as the thermostat is a hard-working component within a car’s engine.

If a car engine warning light does appear, call RAC Roadside Assistance on 13 11 11, or make a booking for a free 30 minute car fault diagnosis at one of our nine metropolitan Auto Service
centres.

For more information about RAC’s free fault diagnosis call 1300 134 642.