Lexus. Posted July 20, 2004 Share Posted July 20, 2004 My 95 LS400 tranny feels very harsh when shifting 2nd to 3rd gear. It feels like its having a spasm and doesnt feel smooth like Lexus should be. I recently had a complete flush with Toyota type 4 from Brakes Plus. The problem was even worse before the flush. Otherwise the car runs excellent with 110K miles. What could be the culprit of this problem? Do I need a new tranny? Would adding some liquids like dura-lube or stuff from Lucas to tranny help? Quote Link to comment Share on other sites More sharing options...
99lsguy Posted July 21, 2004 Share Posted July 21, 2004 Check and see if they've overfilled the tranny.......let it get totally warmed up and check it out - too much is a bad thing. IF so, drain from the pan and replace with 1 quart less than what came out to start.......then slowly add to sneak up on it: its a finnicky fill ;) Quote Link to comment Share on other sites More sharing options...
thels400guy Posted July 21, 2004 Share Posted July 21, 2004 Hopefully they actually used Toyota Type T-IV and not Dexron/Mercon with a Lubeguard friction modifier. In my experience I had overfilled and underfilled the tranny and a draining from the pan should drop 2 quarts and the excess if any. Refill with 2 quarts. Quote Link to comment Share on other sites More sharing options...
chips229 Posted July 21, 2004 Share Posted July 21, 2004 but if you did a ecu reset....take the battery off for say 10 mins... The ecu would learn the shift points again,that might sort it out...worth a go Chips. Quote Link to comment Share on other sites More sharing options...
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