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GS300

Hi there. There are a lot of things that can cause the Check Engine Light to be illuminated. A flashing check engine light is a sign of serious trouble. If the light is not flashing, then I would use a...

Trouble code P0120 (https://www.yourmechanic.com/article/p0120-obd-ii-trouble-code-tps-a-circuit-malfunction-by-jay-safford) relates primarily to malfunctions in the throttle position sensor, located in the throttle body, and/or circuitry and wiring to the sensor. Standard practice is to measure the voltage leaving the sensor at various throttle plate angles...

You will need to have the brakes and wheel bearings checked to see what is causing the noise. You may have worn out brake pads and it is scrapping on rotor metal to metal or pad sensor is hitting rotors....

Hello. From the explanation that you are giving me it sounds like you have a catalytic converter that is failing. When this occurs it will give you these codes and will cause a loss of power. You should have this...

The vibration you are feeling while braking may be because of warped brake rotors. Brake rotors can warp when they are overheated from repeated hard stops. The rattling noise during acceleration may be due to a loose panel or heat...

Hi there. There is only an upper ball joint on the 2002 Lexus GS300. The bottom portion of the knuckle to the wheel hub is attached to a frame member with a pressure bolt and bushing and fitted with a...

Billing question for to replace the rear main seal (rear crankshaft seal) on a 2003 Lexus GS300 with a L6-3.0L engine.

The fuel pump on this vehicle has a relay in the engine compartment main fuse box labeled EFI fuse. The fuel pump is controlled by an fuel module in the left rear of trunk and this is powered by this...

Hi there. What prompted you to replace those particular parts? Did testing reveal a fault? This year model, along with its sister IS models, up to 2011 had a service campaign for cylinder misfires. The campaign did not cover the...

Several things could be causing the shake you're experiencing: tires out of balance, defective/worn tires, worn struts, worn control arm bushings, worn tie rods, wheel bearings (https://www.yourmechanic.com/services/wheel-bearings-replacement) starting to fail, the list goes on. Start by having a local service...

The problem you are describing is electrical in nature. When this new type of "electronic" steering system first saw widespread use, there were occasionally problems due to design glitches and unforeseen operating issues. In 2009, there was a Lexus Service...

Sounds like the automatic transmission might be failing. The mileage and age are about right. If there is a dipstick, you can check the fluid yourself, (https://www.yourmechanic.com/article/how-to-check-and-add-fluid-to-an-automatic-transmission) but many cars made after the late 1990,s don't even have a dipstick...

Hello, thank you for writing in. There is not a bleeder valve on the cooling system, as the newer models are designed to "self bleed". Your owner's manual can confirm this, and give you more information on how your specific...

The best way to replace the spark plugs on this vehicle would be to first open up the hood. Since this vehicle has a stright six engine, the spark plugs should be fairly easy to get to and should be...

Maintenance intervals for your vehicle are stated in 5,000 to 10,000 mile intervals. Looking at the just past 120,000 mile schedule for your vehicle, this is what should have been done and if done, you would presently be up to...

Hi there. The rear crankshaft seal is placed along with the transmission; therefore, the process of replacing it requires the removal of transmission, as well as the clutch and flywheel assembly. This is a very involved job that should be...

Hello, thank you for writing in. With the extent of the work you have done already, it leaves very few components left to consider. With that being said, take a few moments to verify that all of the repairs you...

Hello. The best thing to do is visually inspect where the smoke (https://www.yourmechanic.com/services/smoke-from-engine-or-exhaust-inspection) is coming from. Replicate whatever conditions necessary to get the engine to smoke again, and lift the hood to see where it is coming from. Keep in...

Hi there. Check the fuses/relays and replace as necessary. If the fuse is blown and blows again we'll need to investigate what is causing the circuit to overload. If the fuse checks ok, then check for supply voltage at the...

This may be related to a dirty or faulty idle air control valve. This is a unit that reads the air intake as it is mixed with fuel before entering the engine. This information is then relayed to the computer...