2003 Mazda Mazda6 Problems

RepairPal has identified the most common problems with the 2003 Mazda Mazda6 as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

A loud ticking noise (hydraulic valve lifter noise) may be heard from the top of the engine, particularly when the engine is still cold. The noise may occur more frequently on higher mileage vehicles; Hydraulic valve lash adjusters may need to be replaced to correct this issue. Following the maintenance schedule for oil changes will also help prevent a recurrence of the noise.

The engine may overheat due to erratic engine cooling fan operation as a result of a faulty cooling fan control module. Replacement of the fan control module would be necessary to correct this condition. Our technicians tell us the Mazda may provide assistance with the cost of this repair.

Some models may have a problem with stalling under light acceleration. Updated software for the powertrain control module (PCM) is available which may help with this concern.

Mazda recalled certain models due a problem that could cause the fog light bulb to fall out of the fog light assembly. The repair involved inspecting the fog lights and installing a spring clip to prevent the light bulb from falling out.