Tranny Problems

[Lexus.]

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?

[99lsguy]

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 ;)

[thels400guy]

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.

[chips229]

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.