2003 Lexus ES300 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Lexus ES300

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.

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.

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.


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Front struts which one do I need? Toyota Electronic modulated suspension or regular one? Also is it necessary to replace coil spring?

I have the sludge build up that everyone is talking about. Is there any resolution through Lexus customer service. I took it to an outside garage and had it diagnosed. Used syn oil and had regular oil changes as required. Any help would be appreciated.

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Great car and excellent on gas! I love my Lexus ES 300. :)

AC went our after 52,000 miles


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