Transmission Slipping
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Driver School Candidate
Joined: Mar 2011
Posts: 6
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From: Sask
Transmission Slipping
I had a Transmission shop in town drop my pan, clean the screen and replace the 1.9L of displaced ATF in my 1990 LS400 back in May 2011. The shop did not use the recommended Toyota Type 4 ATF - but assured me the "full synthetic" ATF used was fine.
I drove the car all summer (approx 5,000 miles) without any issue, just smooth shifts. Now that winter is settling in here, and the temperature is dipping below freezing point the transmission is acting up. It seems to be slipping and not operating smoothly. However, once it reaches operating temperature it seems fine.
Basically, just wanted some advice...do you think my transmission is done? Should I take it to dealership and get a complete flush with proper Toyota Type 4? Or should I use a Lucas type additive?
Thanks, all comments appreciated.
I drove the car all summer (approx 5,000 miles) without any issue, just smooth shifts. Now that winter is settling in here, and the temperature is dipping below freezing point the transmission is acting up. It seems to be slipping and not operating smoothly. However, once it reaches operating temperature it seems fine.
Basically, just wanted some advice...do you think my transmission is done? Should I take it to dealership and get a complete flush with proper Toyota Type 4? Or should I use a Lucas type additive?
Thanks, all comments appreciated.
Driver School Candidate
Joined: Jul 2011
Posts: 29
Likes: 0
From: AZ
if you take it to a dealer for diagnosis they will hook up a proprietary diagnostic tool, called an ECT analyzer, this is used to manually shift the transmission. This is how they determine if the problem is due to actual transmission damage or a faulty ecu. I would have thought this would only concern shift points but from what the manual says the lockup is also controlled by computer and this relates to slippage.
I would ask the tranny shop which specific fluid they did use, as there is a published spec which will be listed , I think if you search you can find the spec listed on here somewhere.
I would ask the tranny shop which specific fluid they did use, as there is a published spec which will be listed , I think if you search you can find the spec listed on here somewhere.
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sparrowjac
LS - 1st and 2nd Gen (1990-2000)
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Jul 9, 2015 10:23 AM
