Rough downshifting
03-22-2011, 01:50 PM
#1
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Rough downshifting
I purchased a 2008 Acura TL this weekend with 21k miles. I am noticing rough shifting...I am not sure if this is normal or not. But when shifting its not smooth like my others cars its rough.
I was in behind a car today that was slowing down making a turn so I slowed down then the car sped up so I sped up and my transmission did a horrible downshift felt like someone rear ended me.
. Sometimes my BMW does this but is this normal for the TL? I also have a clunk when shifting into R. I am going to test drive some TL's at my local dealership this weekend to compare.
It seems as the previous owner drove the car rough I am getting 14MPG and the brakes are loose. How can I reset the cars transmission?
I was in behind a car today that was slowing down making a turn so I slowed down then the car sped up so I sped up and my transmission did a horrible downshift felt like someone rear ended me.
. Sometimes my BMW does this but is this normal for the TL? I also have a clunk when shifting into R. I am going to test drive some TL's at my local dealership this weekend to compare. It seems as the previous owner drove the car rough I am getting 14MPG and the brakes are loose. How can I reset the cars transmission?
Last edited by Aretardedorange; 03-22-2011 at 02:02 PM.
03-22-2011, 02:36 PM
#2
winner
im the only owner of my 08 and when i downshift it does shift pretty erratically as well.
took it to the dealer two times, including a 3 day stay and they found no abnormal issues.
i still don't believe that it should be normal and will pursue another dealer or acura care when i get some more time.
that is a great idea that you test drive some tl's to see if it's the same.
i might do that too!
took it to the dealer two times, including a 3 day stay and they found no abnormal issues.
i still don't believe that it should be normal and will pursue another dealer or acura care when i get some more time.
that is a great idea that you test drive some tl's to see if it's the same.
i might do that too!
03-22-2011, 02:54 PM
#4
Team Owner
Search is your friend...
03-22-2011, 02:56 PM
#5
winner
i searched initially when i first found out about the issue but found a lot of threads about 04-06 tl's and their transmission 3/4th gear switches and known issues and using redline.
i didn't see very much about 07-08 tl's and no tsb about it either.
i've heard that the 07/08 auto transmissions are a bit different than 04-06's so i didn't want to gather any conclusions about my transmission using the other threads
if you have a link ihc, that would be awesome!
i didn't see very much about 07-08 tl's and no tsb about it either.
i've heard that the 07/08 auto transmissions are a bit different than 04-06's so i didn't want to gather any conclusions about my transmission using the other threads
if you have a link ihc, that would be awesome!
03-22-2011, 07:26 PM
#6
[x] FWCC [x]
At what speed would you say you go when you're downshifting? I made a 48miles trip over the weekend and i didn't notice any changes of a rough shifting unless you were going a bit over 80mph and downshifting at that high speed.
03-22-2011, 07:34 PM
#7
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i searched initially when i first found out about the issue but found a lot of threads about 04-06 tl's and their transmission 3/4th gear switches and known issues and using redline.
i didn't see very much about 07-08 tl's and no tsb about it either.
i've heard that the 07/08 auto transmissions are a bit different than 04-06's so i didn't want to gather any conclusions about my transmission using the other threads
if you have a link ihc, that would be awesome!
i didn't see very much about 07-08 tl's and no tsb about it either.
i've heard that the 07/08 auto transmissions are a bit different than 04-06's so i didn't want to gather any conclusions about my transmission using the other threads
if you have a link ihc, that would be awesome!
The 3rd and 4th gear pressure switches greatly influence the downshift harshness. This was the biggest improvement I felt when I replaced them. The Type F will help a little also. The TL is supposed to downshift automatically when you hit the brakes but over time it can go from barely noticable to harsh and most of it is due to the switches. I'm assuming the later TLs only rev match in manual mode....
Last edited by I hate cars; 03-22-2011 at 07:46 PM.
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03-22-2011, 08:11 PM
#8
[x] FWCC [x]
The 3rd and 4th gear pressure switches greatly influence the downshift harshness. This was the biggest improvement I felt when I replaced them. The Type F will help a little also. The TL is supposed to downshift automatically when you hit the brakes but over time it can go from barely noticable to harsh and most of it is due to the switches. I'm assuming the later TLs only rev match in manual mode....
03-25-2011, 03:12 PM
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I have the same issue. Downshifting is rough.....sometimes....actually...most of the time. I have a 07 TL w/ 40k miles. I own also a '93 Ford Probe GT with 157k miles and it shifts smoother than my TL. I already went at the dealer 2 times and they said that everything is up to specs!!!! I made another appointment for Monday morning....to try again to convince them that something is not right with the tranny. If not i will try to change the pressure switches. I already went to Redline D4 at 30k miles, i did the 3X3. My best friend has an 06 TL and the shifts are so smooth that you can't feel anything when the car is shifting gears up or down. I don't know what to say.....it's very frustrating.
03-28-2011, 07:34 PM
#10
[x] FWCC [x]
I have the same issue. Downshifting is rough.....sometimes....actually...most of the time. I have a 07 TL w/ 40k miles. I own also a '93 Ford Probe GT with 157k miles and it shifts smoother than my TL. I already went at the dealer 2 times and they said that everything is up to specs!!!! I made another appointment for Monday morning....to try again to convince them that something is not right with the tranny. If not i will try to change the pressure switches. I already went to Redline D4 at 30k miles, i did the 3X3. My best friend has an 06 TL and the shifts are so smooth that you can't feel anything when the car is shifting gears up or down. I don't know what to say.....it's very frustrating.
03-28-2011, 08:13 PM
#11
Team Owner
I have the same issue. Downshifting is rough.....sometimes....actually...most of the time. I have a 07 TL w/ 40k miles. I own also a '93 Ford Probe GT with 157k miles and it shifts smoother than my TL. I already went at the dealer 2 times and they said that everything is up to specs!!!! I made another appointment for Monday morning....to try again to convince them that something is not right with the tranny. If not i will try to change the pressure switches. I already went to Redline D4 at 30k miles, i did the 3X3. My best friend has an 06 TL and the shifts are so smooth that you can't feel anything when the car is shifting gears up or down. I don't know what to say.....it's very frustrating.
03-28-2011, 10:34 PM
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This morning I went to the dealershit.... 
......of course exactly what i was expecting......nothing! They said that everything is fine. The technician drove the car with me and i was trying to tell him when the car was shifting from the 2nd yo 3rd and 4th that there is a bump, a pull which in my opinion it should not do. He insisted that the tranny is perfect and if it was to go bad there were different signs like sounds and more harsh shifting. Anyways he said that the complain is registred in the file so if something goes wrong i am covered...i do not know what to say about that.
I even asked if it would be good change the switches, i would pay for them, and they said not to waste my money because it will not change a thing. I am still gonna do it anyways. :P
@ tones 160 - I do not hear any sound but there is a bump, lag, like the whole car doesen't move and after a fraction of a secound it pulls harder when it goes to the inferior gear. same thing with shifting up.
......of course exactly what i was expecting......nothing! They said that everything is fine. The technician drove the car with me and i was trying to tell him when the car was shifting from the 2nd yo 3rd and 4th that there is a bump, a pull which in my opinion it should not do. He insisted that the tranny is perfect and if it was to go bad there were different signs like sounds and more harsh shifting. Anyways he said that the complain is registred in the file so if something goes wrong i am covered...i do not know what to say about that.I even asked if it would be good change the switches, i would pay for them, and they said not to waste my money because it will not change a thing. I am still gonna do it anyways. :P
@ tones 160 - I do not hear any sound but there is a bump, lag, like the whole car doesen't move and after a fraction of a secound it pulls harder when it goes to the inferior gear. same thing with shifting up.
03-28-2011, 10:37 PM
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03-28-2011, 10:51 PM
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03-28-2011, 11:11 PM
#15
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No issues at all. Pretty much everything can be mixed with no bad effects. You will love how it feels after the switches and fluid. You'll see that the tech has no idea what he's talking about when you're done.
03-28-2011, 11:21 PM
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Can you please tell me where should I buy those switches or shoul i order them from the dealer.
Thank you.
03-29-2011, 07:33 PM
#17
[x] FWCC [x]
This morning I went to the dealershit.... ......of course exactly what i was expecting......nothing! They said that everything is fine. The technician drove the car with me and i was trying to tell him when the car was shifting from the 2nd yo 3rd and 4th that there is a bump, a pull which in my opinion it should not do. He insisted that the tranny is perfect and if it was to go bad there were different signs like sounds and more harsh shifting. Anyways he said that the complain is registred in the file so if something goes wrong i am covered...i do not know what to say about that.
I even asked if it would be good change the switches, i would pay for them, and they said not to waste my money because it will not change a thing. I am still gonna do it anyways. :P
@ tones 160 - I do not hear any sound but there is a bump, lag, like the whole car doesen't move and after a fraction of a secound it pulls harder when it goes to the inferior gear. same thing with shifting up.
......of course exactly what i was expecting......nothing! They said that everything is fine. The technician drove the car with me and i was trying to tell him when the car was shifting from the 2nd yo 3rd and 4th that there is a bump, a pull which in my opinion it should not do. He insisted that the tranny is perfect and if it was to go bad there were different signs like sounds and more harsh shifting. Anyways he said that the complain is registred in the file so if something goes wrong i am covered...i do not know what to say about that.I even asked if it would be good change the switches, i would pay for them, and they said not to waste my money because it will not change a thing. I am still gonna do it anyways. :P
@ tones 160 - I do not hear any sound but there is a bump, lag, like the whole car doesen't move and after a fraction of a secound it pulls harder when it goes to the inferior gear. same thing with shifting up.
...well good luck in repairing the issue dude, let me know how you did it just in case if that issue comes across. 
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