Notices
RX - 3rd Gen (2010-2015) Discussion topics related to the 2010 - 2015 RX350 and RX450H models

2013 rx350 awd transmission temperature sensor.

Thread Tools
 
Search this Thread
 
Old Jul 21, 2025 | 08:18 AM
  #1  
Ken527's Avatar
Ken527
Thread Starter
4th Gear
5 Year Member
 
Joined: Jun 2018
Posts: 4
Likes: 0
From: North Carolina
Default 2013 rx350 awd transmission temperature sensor.

Transmission shifts fine no problems but keep getting po713 and 711. Goes away after 3 cold starts or clear the codes but comes back after a few days?
Had the transmission contol module replaced fine for a few days then got the 713 again.
Repair place says the temperature sensor needs to be replaced but transmission has to be removed to do it.
120,000 miles and cost to remove he recommends replacing it with a new one. $4500.00.
2013 runs great shift fine but can't keep driving or sell it with check engine light on.
Question is Lexus says you have to remove the transmission to do it but everything I read says it's on the valve body under the filter/strainer.
May have to remove the valve body to do it.
Any one know if you really have to remove the transmission to replace the fluid temp sensor?
Thanks


Reply
Old Jul 21, 2025 | 08:51 AM
  #2  
Clutchless's Avatar
Clutchless
CL Community Team
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2005
Posts: 7,145
Likes: 1,710
From: VA
Default

Has the ATF fluid ever been changed? If so when?

You need to get a second opinion from another transmission shop or independent Toyota specialist as this guy (is it a Lexus dealer?) appears to just want to make a lot of money from you.
This transmission is the U660E model and is used in a bunch of Toyota and Lexus vehicles.
This article states it is on the valve body. There is a kit with the pressure switches and temperature sensor together.

https://www.transmissiondigest.com/t...switch-issues/

and this
​​​​​​https://d2q1ebiag300ih.cloudfront.ne...60E-ZIP-IN.pdf
Reply
Old Jul 21, 2025 | 09:39 AM
  #3  
RX in NC's Avatar
RX in NC
Racer
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 1,987
Likes: 599
From: NC
Default

^^ What he said. Where in North Carolina are you?

Last edited by RX in NC; Jul 21, 2025 at 09:41 AM.
Reply
Old Jul 21, 2025 | 11:16 AM
  #4  
Ken527's Avatar
Ken527
Thread Starter
4th Gear
5 Year Member
 
Joined: Jun 2018
Posts: 4
Likes: 0
From: North Carolina
Default

Location is Boone North Carolina
Transmission is a U660E
AWD
Northwest Automotive Wilkesboro nc is a independent Toyota lexus repair shop
Lexus cost is $8500.00
fluid, valvoline max life changed 3 times.

Last edited by Ken527; Jul 25, 2025 at 01:15 PM.
Reply
Old Jul 22, 2025 | 01:39 AM
  #5  
carguy75's Avatar
carguy75
Instructor
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2015
Posts: 1,046
Likes: 350
From: Atlanta, Georgia
Default

Originally Posted by Ken527
Transmission shifts fine no problems but keep getting po713 and 711. Goes away after 3 cold starts or clear the codes but comes back after a few days?
Had the transmission contol module replaced fine for a few days then got the 713 again.
Repair place says the temperature sensor needs to be replaced but transmission has to be removed to do it.
120,000 miles and cost to remove he recommends replacing it with a new one. $4500.00.
2013 runs great shift fine but can't keep driving or sell it with check engine light on.
Question is Lexus says you have to remove the transmission to do it but everything I read says it's on the valve body under the filter/strainer.
May have to remove the valve body to do it.
Any one know if you really have to remove the transmission to replace the fluid temp sensor?
Thanks
No you do not have to remove the transmission to access the valve body on the 6-speed transmission; however the engine does need to be jacked up a bit for access to a couple of the bolts covered by the sub-frame. The service manual recommends removal over just jacking up the engine a bit to gain access.

It will be a bit of work such as if performing an transmission filter replacement to replace that sensor, but not require an engine/transmission removal.

The 8 speed is a different story as it is very hard to remove that front mounted transmission pan due to limited space in which jacking up the engine does not work. One of the reasons I did not pick up an 2013-2015 F-sport model with that 8-speed transmission.

Last edited by carguy75; Jul 22, 2025 at 01:41 AM.
Reply
Old Jul 22, 2025 | 05:02 AM
  #6  
Clutchless's Avatar
Clutchless
CL Community Team
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2005
Posts: 7,145
Likes: 1,710
From: VA
Default

May as well replace this while they are taking the pan out: Cost is about $100. It fits both the U760E and U660E
https://transgo.com/product-details/u760e-shift-kit/

​​​​​​The U760E is a variation of the U660E, are you sure that is correct? It is usually used with the 4 cylinder motor.
AI wrote this:
The main difference between the U660E and U760E transmissions is that the U660E is designed for larger, V6 engines, while the U760E is typically used with smaller, inline-4 engines. Both are 6-speed automatic transmissions used in Toyota and Lexus vehicles, but the U660E generally has a higher torque capacity.
Here's a more detailed breakdown:
U660E:
This transmission was first introduced in 2007 for the Lexus ES350 and Toyota Camry with the 3.5L V6 engine. It's a front-wheel-drive transmission and is also found in other Toyota and Lexus models with V6 engines.
U760E:
Introduced in 2008, the U760E is designed for smaller, four-cylinder engines. It's also a front-wheel-drive transmission and is used in vehicles like the Camry and RAV4 with 2.5L and 2.7L engines.
Key Differences:
Engine Size:
The U660E is paired with V6 engines, while the U760E is paired with four-cylinder engines.
Torque Capacity:
The U660E generally has a higher torque capacity due to its application with larger engines.
Applications:
The U660E is more commonly found in larger vehicles and those with V6 engines, while the U760E is more common in smaller, four-cylinder vehicles.

FYI there are plenty of good used transmissions available for a lot less than a new or rebuilt one.

Last edited by Clutchless; Jul 22, 2025 at 05:06 AM.
Reply
Old Jul 22, 2025 | 08:25 AM
  #7  
carguy75's Avatar
carguy75
Instructor
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2015
Posts: 1,046
Likes: 350
From: Atlanta, Georgia
Default

The temperature sensor is pretty easy to remove if you can remove the transmission filter.

Just skip to step 4.


Reply
Old Jul 23, 2025 | 02:26 PM
  #8  
Ken527's Avatar
Ken527
Thread Starter
4th Gear
5 Year Member
 
Joined: Jun 2018
Posts: 4
Likes: 0
From: North Carolina
Default

Originally Posted by Clutchless
May as well replace this while they are taking the pan out: Cost is about $100. It fits both the U760E and U660E
https://transgo.com/product-details/u760e-shift-kit/

​​​​​​The U760E is a variation of the U660E, are you sure that is correct? It is usually used with the 4 cylinder motor.
AI wrote this:
The main difference between the U660E and U760E transmissions is that the U660E is designed for larger, V6 engines, while the U760E is typically used with smaller, inline-4 engines. Both are 6-speed automatic transmissions used in Toyota and Lexus vehicles, but the U660E generally has a higher torque capacity.
Here's a more detailed breakdown:
U660E:
This transmission was first introduced in 2007 for the Lexus ES350 and Toyota Camry with the 3.5L V6 engine. It's a front-wheel-drive transmission and is also found in other Toyota and Lexus models with V6 engines.
U760E:
Introduced in 2008, the U760E is designed for smaller, four-cylinder engines. It's also a front-wheel-drive transmission and is used in vehicles like the Camry and RAV4 with 2.5L and 2.7L engines.
Key Differences:
Engine Size:
The U660E is paired with V6 engines, while the U760E is paired with four-cylinder engines.
Torque Capacity:
The U660E generally has a higher torque capacity due to its application with larger engines.
Applications:
The U660E is more commonly found in larger vehicles and those with V6 engines, while the U760E is more common in smaller, four-cylinder vehicles.
I was wrong u660e is correct I thought U760E was AWD

FYI there are plenty of good used transmissions available for a lot less than a new or rebuilt one.
It is U660E

Last edited by Ken527; Jul 23, 2025 at 02:27 PM.
Reply
Old Jul 31, 2025 | 10:51 PM
  #9  
Carlos0976's Avatar
Carlos0976
8th Gear
 
Joined: Jun 2025
Posts: 8
Likes: 2
Default

Pretty sure you don’t need to pull the whole transmission. The temp sensor sits on the valve body under the pan — you might have to drop the valve body, but it can be done in place.
Reply
Old Aug 3, 2025 | 12:01 PM
  #10  
AlgoTrader's Avatar
AlgoTrader
Pit Crew
5 Year Member
 
Joined: Sep 2019
Posts: 104
Likes: 26
From: TX
Default

Originally Posted by Ken527
Location is Boone North Carolina
Transmission is a U660E
AWD
Northwest Automotive Wilkesboro nc is a independent Toyota lexus repair shop
Lexus cost is $8500.00
fluid, valvoline max life changed 3 times.
The AWD variant of the 6 speed is the U660F, which is identical to the U660E except that it has a "transfer case" attached to the back for the rear drive shaft.


Reply
Old Aug 3, 2025 | 12:06 PM
  #11  
AlgoTrader's Avatar
AlgoTrader
Pit Crew
5 Year Member
 
Joined: Sep 2019
Posts: 104
Likes: 26
From: TX
Default

Originally Posted by Carlos0976
Pretty sure you don’t need to pull the whole transmission. The temp sensor sits on the valve body under the pan — you might have to drop the valve body, but it can be done in place.
Temp sensor looks like it's very accessible by simply dropping the pan. I've never needed to change my temp sensor, but I did drop my pan to change the filter. It's not super hard. I did need to loosen the trans mount to lift my drive train slightly to get at one pan screw, but I didn't have to remove the trans mount.

Frankly, $4500 to replace this is a ripoff. There is NO need to remove the engine/trans cradle to get to this sensor if you have the 6 speed (U660E or u660F). I cannot speak for the U880F (8 speed/AWD), as I haven't worked on one of these.



Last edited by AlgoTrader; Aug 3, 2025 at 12:11 PM.
Reply
Old Aug 3, 2025 | 03:06 PM
  #12  
salimshah's Avatar
salimshah
CL Community Team
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2001
Posts: 16,531
Likes: 1,379
From: Austin, TX
Default

Automotive repair works with "book time" ... labor charge is based on time to perform a repair [as stated in the book], multiplied by the labor rate of the shop.

If it takes more time than the book time the [mechanic/shop/both] eat the cost, if it takes less time [mechanic/shop/both], pocket the excess.

The above is the standard business model as the industry is based on pre-specifying the estimate (and pre-approves the repair) else we get into liens. I know most fair minded folks may not like it, but imagine the scenarios where the shop./mechanic keeps calling the customer for yet additional time [actually it happens but without the estimate and pre-approvals there would be chaos].

Salim

PS: At times one would come across mechanics who own the shop, who would actually charge real hours. But be prepared when you go them and they state, if job goes easy then the estimate is is this and if we run into problems, it can go up. [typical example is O2 sensor in exhaust]. If you know such mechanic/shop, hold on their number and share with friends]

Last edited by salimshah; Aug 3, 2025 at 03:14 PM. Reason: PS
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jdubman
RX - 3rd Gen (2010-2015)
6
May 12, 2022 04:43 AM
99rx
RX - 1st Gen (1999-2003)
9
Aug 7, 2020 09:06 AM
zer0xhdx01
RX - 1st Gen (1999-2003)
3
Nov 5, 2017 08:25 PM
tomtam6
ES - 1st to 6th Gen (1990-2018)
3
Aug 28, 2013 01:31 PM




All times are GMT -7. The time now is 06:35 AM.