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SC400

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Question
Car idles high at startup
The idle air control valve on your car may be defective, causing the high idle. A couple of checks would need to be done to determine if this is the case. Your engine needs to be checked for any vacuum...
Question
Rubbing sound upon turning to the left
Hello. The tires may be rubbing against the fender well or a suspension part. There could also be a problem with the axle or the sway bar link on the left side, where the noise is coming from. I would...
Question
Noise at higher speeds, engine revs in park
Hello. The first step would be to have the new tires that you installed inspected for defects and to make sure that they were properly balanced. I would also have the wheel bearings checked as they could be causing the...
Question
Car misfires when the weather is cold and while idling
Hello. Thanks for writing in about your 2000 Lexus SC400. It may be necessary to replace all of the ignition coils in addition to having the ignition coil wiring inspected for damage in order to determine why your engine is...
Question
Q: Need help identifying issue please!
Hello, thank you for writing in. It is possible the leak was starting to form when you were driving around the last couple of days. Automatic transmissions have a complex amount of components, seals, gaskets, and various passages for the...
Question
My Lexus sc 400 only goes in to reverse. Rpms rev up when in neutral or drive gears
What you are describing is often a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer...

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