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Is200 Auto Se 1999 Gearbox Power Problem


mista_khan
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Hi

bought my is200 se auto 1999 on lpg off my family friend in feb, before I bought it he told me the gearbox headgasket etc has bee changed in 2013, but there is a slight kickback of power when you put your foot down in petrol or lpg. Its like at a roundabout you put your foot down , car will move but a second or two delay before the full power comes through and revs start going up, never really bothered me when I bought it as ive been cruising in it, but now I feel like putting the pedal to the floor at times, and don't like waiting for that two second delay lol

he did tell me before I bought it that its the vvti filter or vvti oil control valve that's needs to be changed as when he got the gearbox changed and noticed this issue, he went back to the garage and told him the gearbox is fine, its the vvti filter, what you guys think , is it the vvti filter or something else.

mileage is 96k atm ,

hope that makes sense though,

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hey

in park and neutral powers smooth, but in gear, when I put the foot down it takes about 1 or two seconds for the power to fully surge and come through,

also noticed when I turn my car on although engine is fully warm, it will always struggle going up hill until I turn it off and turn it back on again, not sure if its linked,

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There is always a slight delay. thats why there called slushboxes. The 4 speed box in the 200 is better than average but still not great

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@petayv8

so theres nothing unusual about the gearbox, because according to my friend the previous owner, the car was more faster before and wasn't really a delay in picking up speed before the box got changed?

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Its definitely normal for somewhat of a delay but it shouldnt be more than half a second to a second ide say. Post a video and ill tell you. you can also look at youtube for IS200 Auto acceleration etc. theres plenty.

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  • 4 weeks later...

okay after forgetting about the take off issue, I have noticed something else in past two weeks, normally when warming up when driving when I come to a stop like traffic lights, although the gear is still in D, it goes out of gear, so when I accelerate it jumps back into gear and then moves? that wasn't there before and now im thinking its happening everyday so it isn't going away either, what could be causing this? basically jerks back into gear after putting the pedal down to accelerate?

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you might need to have your gearbox fluid drained and refilled if its not been done in ages the gearbox shifts roughly when the oil is quite old and dirty. I had a similar rough and jerky shifting until I did a drain and refill. Lexus recommends Toyota Type T-IV as apparently any other transmission oil other than this will damage your box.

the slight delay/pause you feel when you put your foot down is just the ECU shifting down from a higher gear e.g. 4th to a lower gear 2nd. automatics tend to shift up to higher gears during cruising when not on WOT in order to return good MPG and the moment you put your foot down, it needs to gather its thoughts to register what the drivers intentions are then drops down to the best lower gear ratio before it takes off hence the slight pause or delay for few seconds... a manual gearbox will have the same effect when say cruising at 40mph in 6th gear and you put your foot down you will notice nothing happens until you manually drop it down to 2nd or 3rd gear then car comes alive again. in a manual you are thinking for the gearbox in terms of what gear ratio to be in, in an auto the ecu needs few seconds to think and make the decision once you go WOT when cruising. tiptronic style auto gearboxes have resolved this by giving the driver the freedom to pick and choose a lower gear when safe to do so. so say you approaching a round about or corner and you want to take that corner in 2nd gear instead of 3rd or 4th gear the tiptronic will allow this and will also hold the gear just like a manual box would. unfortunately IS200 is not a tiptronic auto gearbox so ecu will make the decision instead of the driver..

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that makes a lot of sense noby76, but im not too fussed about the take off as the is200 is just my crusing car anyway,

going back to the oil, how do I check the gearbox oil? is it from inside the car or underneath the car? any instructions to do so? previous owner had gearbox changed around 1.5 years ago so I assume they fill it with new gearbox oil?

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Have a read through the post below explains how to check levels and what to look for regarding fluid condition, one post does mention the problem you are having due to the incorrect fluid being used :)

http://www.lexusownersclub.co.uk/forum/topic/54550-is200-automatic-gearbox-maintenance/

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Hi flush the gearbox oil and change the filter before you do anything else this will make sure you have the correct oil and a new filter before trying to diagnose anything else with the box this is what I would advise my customers to do

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Okay finally got the dipstick out and checked oil, hell it aint pink, looks damn dark to me, see photo,

also ive noticed when going up hill when the cars warming up and not reached full temp , it gets stuck between 2500 and 3000 revs and jumps between those revs like its stuck and cant make its mind up to gear up or gear down?

cant seem to paste photobucket link????

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quick update, including the above symptoms now ive noticed the gearbox doesn't change up to a smoother gear once cruising and thus the car feels like its struggling as its over 2500 revs when it should be in higher gear sitting around 2000 revs,

the ex owner keeps saying as the gearbox was changed in November 2013 , its most likely the vvti filter but after seeing the black dirty oil in the gearbox dispstick im also certain its the gearbox oil, whats the correct oil name and is It only available from lexus dealers?

and whats the mesh grill in the gearbox that should be changed along with the oil ?

cheerss

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The whole transmission was changed in 2013? dont believe that if the oil is old. It takes years for trany oil to go bad. Use Toyota Type 4 ATF fluid only available at Toyota and Lexus dealers. And i dont even think they sell it in less than 10L anymore either. So may have to be a dealer joby

The filter can simply be cleaned out i believe and replaced.

There are plenty of threads on this like this discussion i had
http://www.lexusownersclub.co.uk/forum/topic/87767-is200-transmission-fluid-oil/

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@petayv8

exactly what I was thinking, but he wouldn't lie to me which means the mechanic used some ****ty ***** oil or maybe put the old one back in? the oil is damn bitch black and smells burnt, ive checked the dipstick again and its the same situation the oil is black.

if I drain the oil out completely from the sump below the dipstick , how much oil will I need in total to refill the oil? and definitely ill be using Toyota type iv and looks cheaper if I import it from usa.

or I might even take it to a specialist gearbox garage to get it changed as I don't want to mess anything up.

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Im wondering also if they used bad or just incorrect oil. TBF garages just dont get enough experience working on these motors to realise. Most ****mobiles out there you can just dump anything in. Deffo get it changed asap.

atfoilis200_zps4c048881.jpg

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sorry to be a noob @petayv8 but am I going to do a dry fill or a drain and refill ?

A drain is like changing your engine oil - you take the plug out and let it out but oil still remains somewhat after it stops draining, moreso with a transmission due to many other moving parts and compartments beyond the pan. This remaining oil will only circulate when your driving and using the tranny. This method is only recommended if your changing the oil regularly AND your using the same oil as over time all the oil is all changed as new mixes with old if that makes sense.

In your situation you deffo need a dry fill/full flush which means all the oil is drained out of all areas off the transmission and as you can see this caters for more than double of the total amount compared to a drain. For this i believe you need a special pump and maybe other specialist tools. I never looked into it personally as my oil was only starting to turn bad and was only planning on a drain but i sold the car before i got around to it. but i think its a pretty standard procedure still

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