2003 Lexus ES300 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Lexus ES300
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2003 Lexus ES300 Problems
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.
Sludge can build up in the engine because Lexus 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.
2003 Lexus ES300 Questions
2003 Lexus ES300 Reviews
Great car and excellent on gas! I love my Lexus ES 300. :)
AC went our after 52,000 miles