samspony

Hey guys, I have a 2000 IS 300 that I bought last April. It currently has 85,000 miles. Since the weather has cooled down I am hearing a loud screaming noise. It happens when outside temperature is below 45 degree F and speed is between 20-30 MPG. But once I drive the car for a few minutes, the noise goes away. I normally park the car outside and I start it in the morning and let it worm up. Therefore; whether the engine is cold or warm it does not mater I still hear the noise when the speed reaches 20-30 MPG. It can happen when I speed up or when I slow down. The car drives great, no issue at all. All fluids are in good condition and transmission shifts flawless. Could it be the transmission oil not warming up fast enough? Does anyone have any suggestions? Thanks.

Hello everyone, I am a new member and I have a couple of questions on my 2001 IS 300. I have bought the car from a dealer a year ago and I do not have any service records. The car currently has 80 K miles. 1. If the tranny oil never been replaced, is it OK to replace it now or will it cause issues? 2. The rear suspension made a clunking noise every time I ran over a bump. I had it checked out and they told me that rear struts had leaked out but the mount was OK. I recently install a pair of struts and ride has improved and the noise is almost gone. But I still hear a noise time to time but not as bad as before. The rear suspension does not feel like the front. Can you tell me what else could be potentially wrong? Thanks, Sam