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2002 Toyota Avalon Problems

Check Engine Light Due to Failed Oxygen Sensor

for the Toyota Avalon

The Check Engine Light may illuminate because a component of the oxygen sensor stops working. As a result the engine computer is unable to determine the proper ratio of air to fuel for the engine. Replacing the failed oxygen sensor should correct this concern.

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Misfire and/or Check Engine Light Due to Failed Ignition Coil

for the Toyota Avalon

On higher mileage vehicles, an engine misfire may develop and/or the Check Engine Light may illuminate due to a failed ignition coil. It is not uncommon to replace all the coils when the first one fails in order to prevent return trips to the repair shop.

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Check Engine Light Due to Failed EVAP Purge Control Valve

for the Toyota Avalon

Intermittent failure of a purge control valve in the evaporative emission system can cause the Check Engine Light to illuminate. A failed valve should be replaced to correct this problem.

15 Reports

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Excess Engine Oil Consumption

for the Toyota Avalon

Sludge can build up in the engine because Toyota did not recommend frequent enough oil changes. Lexus will sometimes offer a discount on cleaning the engine if necessary. Owners who changed their oil every 3,000 miles did not experience these problems. This sludge build up can lead to excessive oil consumption.

9 Reports

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