I bought my TL back in early month of 2012 and notice very hard shifting from 3rd to 4th gear (3rd being near reline and shifting into 4th), the shift is hard similar to inexperience driver driving MT car during 1st and 2nd gear engagement. I read the article here on AZ about the switches and how the new switches helps with smoother shifting so I decided to do a following procedure.

1. AZ recommended 3x3, I actually did 5x3 (dealer performed 3 times and DIY by me 2 times with 5k miles interval for the first 3 and 10k miles after that). When I got the car Honda dealer already did drain and fill for the 60k miles service, I checked and confirm that the new fluid present on the car.

2. After 3x3 I see improvement in the shifting, grade logic isn't so noticeable as once was, however the car rarely does hard shift from 3rd to 4th or versa. I decided to do the final item on the list.

3. 3rd and 4th pressure switches is done during my TB/WP services and now the hard shifting is gone and I did notice the response every time I press the accelerator.


The dealer asking me "if it's not broken why do you want us to replaced?" he just curious and I told him "sensor over time had drifted out of calibration on pressure" but I got no real number to back up this claim except for what we all experience before and after. So I decide to dig a little further for research and come up with this, hoping to share with every body. This apply for most Honda AT including the older model with data provided explain why Honda AT prone to failure.


Pressure


Looks inside of a pressure switch.

PressGraph


Trans cooler

TransCooler



Mod please feel free to move this into appropriate section of the forums.

 

Good read, thanks for the info.

 

Good read. MT FTW tho.

 

Thanks for the info. Did you 3x3 with OEM fluid or something else?

 

+1 on that, MT are much easier to maintain.

 

And in case you hadn't seen this old and very popular thread:
https://acurazine.com/forums/third-g...der-tl-721508/

 

I always using Honda DW-1 for all the drain and fill.

I did saw the thread that made by I hate cars. But it doesn't tell how much pressure is out of calibration.

 

Well done-nice writeup.

 

This thread remind me to do my daughter's 3rd and 4th switches this Spring. 2006 with 105K miles on the clock. Thanks.

 

I recently had tb/wp and trans service on my 07 type s.Much smoother shifting for sure.What did the dealer charge you for the 3rd and 4th pressure switches installed?

 

2 hours of labor since the one under airbox is pain in the ass, however they gave me a good deal on tv/wp.

 

This is worth reading on the reason to change the pressure switches AT3rdClutch

 

I changed mine earlier this year, no huge changes but 2-3 and 3-4 felt more consistent. FWIW, my 5AT was rebuilt at 159,700 miles by a shop that says they make changes to Honda automatics to fix the known issues with them. Overall it shifts great, full throttle shifts are especially fast but surprisingly not harsh, occasionally have an odd flare that maybe be throttle position sensor related when it downshifts from 5th to 4th, seems very throttle position dependent so I just manually shift it under those conditions.

 

How much were both of the switches? Do you have part number ?

 

28600-RKE-004 (4th Pressure Switch) and 28610-RKE-004 (3rd Pressure Switch)
source: https://acurazine.com/forums/third-g.../#post15577192

When I had them replaced each part was about $37. But I did have a friend who had connection into Honda oem parts at discount. On regular retail market it may be closer to $40 or so. Not bad at all for saving your 5AT.

DIY Guide right here bro:
https://acurazine.com/forums/third-g...2006-a-729149/

Check this thread for all kinds of service/DIY threads: https://acurazine.com/forums/third-g...ewbies-553554/

 

Is this for the 04-06 tl only or for the 07-08 also? I have a tls 5at

 

For the TL-S, you need two of the 28600, and one of the 28610

 

for both 04-06 and 07-08. However 07-08 has one extra switch for 3rd gear meanwhile 04-06 has only two switches.





04-06 pressure switches.-https://acurazine.com/forums/third-g.../#post15577192





07-08 Base + Type S pressure switches-https://acurazine.com/forums/perform...-08-tl-840630/