andrzejbardowski Posted December 10, 2014 Share Posted December 10, 2014 Hi I am a owner of rx400h (XII 2005 production) first registration 2006 , Due to the fact that lexus is my wife car I am driving that car from time to time What i noticed that during acceleration (normal ) changing from battery transmision to petrol is not as smooth as was some time ago. The moment when engine starts and take control over transmission seems to be more "brutal" that previosuly Any idea what could be a reason. what need to be verified according to your expierience and knowledge Car is now 190 000 km odo , oils including transmision have been changed up to owners manual timing (and good practice) always dedicated to lexus. thx for any hints Quote Link to comment Share on other sites More sharing options...
lenore Posted December 10, 2014 Share Posted December 10, 2014 Could be engine mounts, in particular the torsion mount on the top of engine by the brake fluid reservoir. When you say the transmission fluids have been changed, when exactly was the last time mileage wise.? Those are the two things I would think contribute to rough engine starts.... Quote Link to comment Share on other sites More sharing options...
andrzejbardowski Posted December 11, 2014 Author Share Posted December 11, 2014 Thx i will check it... regarding AT fluid , I have changed it at ca 180 tys km odo... using toyota dedicated at fluid both in gearbox and read diff plus new bolts up to service manual (static change means without any "compresion" machine plus additional level check after some km), since then tranny works great smooth acceleration etc... no leakages ... Quote Link to comment Share on other sites More sharing options...
andrzejbardowski Posted December 16, 2014 Author Share Posted December 16, 2014 Any idea how to check those engine mounts... one is crearly visible from engine bay , Steping on the brake and accelerating won't work with eCVT transmision probably rgds Quote Link to comment Share on other sites More sharing options...
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