3rd & 4th pressure switches, why replace them? Explained.
#1
Suzuka Master
Thread Starter
3rd & 4th pressure switches, why replace them? Explained.
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.
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.
#6
08 MDX, 04 TL (sold)
iTrader: (1)
And in case you hadn't seen this old and very popular thread:
https://acurazine.com/forums/third-g...der-tl-721508/
https://acurazine.com/forums/third-g...der-tl-721508/
#7
Suzuka Master
Thread Starter
Trending Topics
#8
Team Owner
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Well done-nice writeup.
#10
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?
#11
Suzuka Master
Thread Starter
2 hours of labor since the one under airbox is pain in the ass, however they gave me a good deal on tv/wp.
#13
Mr. Detail
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.
#15
Safety Car
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/
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/
#18
Suzuka Master
Thread Starter
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/
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/
Last edited by truonghthe; 11-21-2015 at 09:59 PM.
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