1999 Lexus GS300 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 Lexus GS300

The Check Engine Light may illuminate due to an O2 sensor heater fault. Most commonly the affected O2 sensor will need to be replaced to correct this concern.

Clunking noises from the front suspension may be caused by the top front shock mount, which has been redesigned.

The Check Engine Light may illuminate due to an EVAP system fault. These faults are commonly EVAP canister or gas cap related. Our technicians recommend diagnosing the stored fault codes before replacing any components.

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I don't think the problem is my battery because when I turn my key, my dashboard lights, and radio comes on. That would also mean that my alternator is charging the battery ok. And my car doesn't make any kind of clicking noise when I turn my key so I don't think its my starter. Wh...

Have a 12.5 volt draw with key off and altranator not hooked up

Altrnator is not hooked up

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I have an 1999 gs300 with 139000 miles, the car is smooth and drive great but, i have a noise inside the dashboard. I already check under the car, the engine, transmission but, i can't hear nothing inside. This noise is driving me crazy and it just sound when i stop the car in traffic light or when i set my car in parkin. What can I do?

This is the best car i ever had !! the better outta 12 ...its fast ,its a very sexy car and hugs the road like a new mother holds her baby... i had this car for 2 years already and i will keep it forever !!

Love the the car i drove the car to east coat with 144000 miles on it with 80-85 mph not even a single problem

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