sunman2010 Posted February 22, 2011 Share Posted February 22, 2011 Hello Lexus Clubbies: I have a 99 GS300 with 150K miles, bought it from a Lexus dealer at 147k miles. So far going great. I noticed when I first shift transmission in the morning (cold start) or whenever the car has been sitting for several hours and I start, the transmission makes a slight 'thud' sound when I shift to D mode, or R Mode. This does not happen after the car warms up an hour or so later in driving. Rest of the time, when I shift, I dont feel anything meaning it is quite silent and smooth. Is this normal? Has anyone else experienced this? Your comments and experiences would be much appreciated. Thanks in advance to you all. Sonnyboy Quote Link to comment Share on other sites More sharing options...
Claymore Posted February 27, 2011 Share Posted February 27, 2011 Interesting. Sounds like you should check your U-joints, and/or engine/transmission mounts. I have a different phenomena, gear whine fro the transmission when the car is cold. After it gets good and warmed up the whine goes away. Quote Link to comment Share on other sites More sharing options...
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