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4.2 Accessories Discuss RAV4.2 accessories, their installation, where to purchase, etc.

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post #11 of 17 (permalink) Old 03-25-2019, 11:29 AM
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Janos, The owner's manual and maintenance guide for your Rav4.2 says to change the automatic transmission fluid only as necessary, unless you drive under one of the following Special Operating Conditions:
Driving on Rough, Muddy or Snow-Melted Roads
Driving on Salt-Covered Roads
Driving on Unpaved or Dusty Roads
Extensive Idling or Low-Speed Driving for Long Distances
Towing a Trailer or Using a Camper or Car-Top Carrier

If driving under any one of these Special Operating Conditions, the recommended automatic transmission fluid change frequency is 60,000 miles or 48 months, whichever comes first. The transmission lubrication system does not have a filter in it. By comparison, the engine oil lubrication system does have a filter. As member Eodgator has pointed out, the tranny oil is typically going to appear dirtier than say the engine oil, yet still be fine.

The owner's manual for your Rav4.2 is at https://www.toyota.com/t3Portal/docu...f/OM42503U.pdf
The Maintenance Guide is at https://www.toyota.com/t3Portal/docu...Y02-MS0003.pdf

Here's a great photo of where the engine serial number should be on certain Rav4.2s:
https://www.rav4world.com/forums/mem...rialnumber.jpg

My 1998 Rav4.1 has a second engine as well. I will be interested to learn what we both find for the engine serial numbers.

1998 Rav4, Manual Transmission, 2WD, JDM engine with 85k miles in early 2019
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post #12 of 17 (permalink) Old 03-25-2019, 07:28 PM Thread Starter
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Since I bought my car I travelled about 14000km (8700miles) only but I have no idea how much the fluid was used. I think I'd better change it.
01front.jpg02back.jpg
Ain't it nice? It was never that clean and shiny since I bought it

It is weird that the fluid changed from nice clean pink to brown and dirty in a short time(8months). I only travelled around 3000km (1800miles) since that check.

It was however a really hot summer and I spent a lot of time in traffic jams = "low speed" - I guess higher temperature wears off the oil faster.

Ok I found the serial number on the transmission.
The starter motor was above it so I had to move it out of the way so I could take a picture. That is the good part.
The bad part is that some numbers are missing/unreadable. But here it is:
AT.jpg

I have no idea what those numbers are.

However talking to a shop today, it turned out that I must have a U140F transmission - can not be anything else - they say. In theory...
They said the offiial toyota part number is "30500 42100 U140F" and the brand is "Aisin".

Omg what did I just notice right now!
Look at the VIN plate, at bottom line:
VIN_Plate.jpg
I always knew about this plate... I knew that cassey number is there. But I didn't know it contains info about the transmission too!

This U140F transmission needs a part number "83181-42010" VSS.
I will try to get a true one (that ebay one is something else) and keep you updated how it all goes.
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post #13 of 17 (permalink) Old 03-25-2019, 09:31 PM Thread Starter
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I have an idea!


Remember the new VSS that I ordered but differs from my old one? I took it apart and I thought I could put its elektronic+magnetic parts into the old one .

These two parts:
ebayVSSapart.jpg


What bad can happen? Fry the whole ECU? Maybe
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post #14 of 17 (permalink) Old 03-25-2019, 09:49 PM
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Janos, unfortunately, I am seeing that part number 83181-42010 does not have 23 teeth. E.g. see the photos at
https://kuante.en.made-in-china.com/...181-12040.html .

Auto Speed Sensor Speedometer Sensor Parts for TOYOTA RAV4 8318142010 83181 of carbodyspareparts [rotate through photos to get the one where you can count the teeth]


Is there any sign of a part number stamped on the old speed sensor?

I like your other plan, of swapping parts from the new sensor to the old, though. First maybe check the ohms across the two sensors' terminals and see if the two sensors' connectors appear to match electrically?

Today because of this thread, I finally located where the engine serial number is stamped on my Rav4. But after googling on the subject, it turns out the engine serial numbers tells me almost nothing.

1998 Rav4, Manual Transmission, 2WD, JDM engine with 85k miles in early 2019
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post #15 of 17 (permalink) Old 03-25-2019, 10:20 PM Thread Starter
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You are right. Then it is possible that I ordered and received a true 83181-42010 indeed.
Then what transmission do I have that uses a 23 teeth VSS? What VSS is it?


My old VSS doesn't have any writings on it.


Now I am really puzzled.
Also I am suspecting something. Look at the line where the motor meets the transmission:
motorMeetTransm.jpg

Is it normal that they don't follow each others profile? The only green arrow shows where their outline matches.

Another pic, from a different angle where it seems that their line hardly ever meet:
motorMeetsTransm2.jpg

On this picture you can see the motor number too. A "1AZFE" motor as it should be. But the transmission? A mystery!
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post #16 of 17 (permalink) Old 03-25-2019, 10:41 PM
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Dunno about the mating surfaces. I do see that the serial number on your tranny is very close to this one on eBay for a
2003 Toyota RAV4 Automatic Transmission 4X4 :
https://www.ebay.com/itm/2003-Toyota...frcectupt=true

The only trannies that would fit your Rav4 are a U140F (awd) and U241E (2wd). The eBay tranny I link here (right above) says it is both U140F and U241E.
Attached Images
File Type: jpg 2019.3.25Rav420034x4trannyNumber.jpg (76.1 KB, 1 views)

1998 Rav4, Manual Transmission, 2WD, JDM engine with 85k miles in early 2019
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post #17 of 17 (permalink) Old 03-26-2019, 11:45 AM Thread Starter
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Yes that is most likely the same A/T that I have. Numbers are same / similar too. I have 4wd so it should be a U104.

However this is how trustworthy ebay item descriptions are: that tranny is either a U104F or a U241, can't be both at the same time .

No worries though, I found success story here, that could solve my problem:
https://www.toyotanation.com/forum/1...placement.html


I will try this cleaning method before the electronics swap. It is even less risky
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