1999 Lexus RX300 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1999 Lexus RX300
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1999 Lexus RX300 ProblemsMisfire and/or Check Engine Light Due to Failed Ignition Coil
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.
Debris can get into the idle air control valve. This will restrict the air flow into the engine, causing idle speed and/or stalling when cold. The valve can be cleaned or replaced to correct this concern.
The Check Engine Light may illuminate because the mass air flow sensor sends incorrect information to the engine control computer. This can cause a loss of power on acceleration. A failed mass air flow sensor will require replacement.
1999 Lexus RX300 QuestionsWon't start without boost but goes back dead after few seconds and won't start again without boost (1 answer)
My taillights, running lights, and brake lights aren't working and I've replaced all of them. The problem with the lights came after a trailer was attached to the vehicle. The rear side lights are not working either.