Transmission Shifting
#1
Three Wheelin'
Thread Starter
Transmission Shifting
Hi,
I have a 2013 TL SH-AWD with 15k on the clock. I recently took a 1500 mile road trip and noticed that afterwards the transmission has been shifting oddly.
1) The upshift from 1 to 2 happens too soon. Before, the car would often shift at 2.5-3k RPM into 2nd, but now it happens at 1500-1800 which is really annoying since the shift is not smooth and is often accompanied by a jerking motion after the shift (and of course i don't have much power in 2nd with those low RPMs after it shifts). In order to get it to shift at a higher RPM, i have to provide a hard throttle initially and then let off the gas at 3k RPM. It shifted fine before the road trip.
2) About 500 miles into the road trip, I was coasting around 20 mph probably in 3rd or 4th gear and when I hit the gas, I heard a metallic clunk (could have been a grind). I could tell the car was in the same gear so it wasn't due to an up/downshift. I was able to repeat it over and over at the time and it sounded like I was driving an old clunker (in fact sounded like my 99 TL which had a busted tranny). Additionally, when I would accelerate, it was very choppy within that gear. Kind of like the gear wasn't fully engaged and it would slip while accelerating (not a complete slip where the RPMs would jump though).
Now that I'm back in NY, I haven't tried to replicate 2, but 1 is really annoying. I wonder if an ECU reset would do anything. Anyone know how to reset it without disconnecting the battery?
Thanks
I have a 2013 TL SH-AWD with 15k on the clock. I recently took a 1500 mile road trip and noticed that afterwards the transmission has been shifting oddly.
1) The upshift from 1 to 2 happens too soon. Before, the car would often shift at 2.5-3k RPM into 2nd, but now it happens at 1500-1800 which is really annoying since the shift is not smooth and is often accompanied by a jerking motion after the shift (and of course i don't have much power in 2nd with those low RPMs after it shifts). In order to get it to shift at a higher RPM, i have to provide a hard throttle initially and then let off the gas at 3k RPM. It shifted fine before the road trip.
2) About 500 miles into the road trip, I was coasting around 20 mph probably in 3rd or 4th gear and when I hit the gas, I heard a metallic clunk (could have been a grind). I could tell the car was in the same gear so it wasn't due to an up/downshift. I was able to repeat it over and over at the time and it sounded like I was driving an old clunker (in fact sounded like my 99 TL which had a busted tranny). Additionally, when I would accelerate, it was very choppy within that gear. Kind of like the gear wasn't fully engaged and it would slip while accelerating (not a complete slip where the RPMs would jump though).
Now that I'm back in NY, I haven't tried to replicate 2, but 1 is really annoying. I wonder if an ECU reset would do anything. Anyone know how to reset it without disconnecting the battery?
Thanks
#2
Burning Brakes
Does your car feel like the "jerkiness" and bucking you see when a person is first learning to drive a standard and hasn't mastered the clutch? You MAY have a problem with the torque converter (two clutches in there) or it MAY be a software issue. If it is reproduceable , your dealer should be able to figure it out. Lots of posts on this forum about similar issues.
#3
Three Wheelin'
Thread Starter
Does your car feel like the "jerkiness" and bucking you see when a person is first learning to drive a standard and hasn't mastered the clutch? You MAY have a problem with the torque converter (two clutches in there) or it MAY be a software issue. If it is reproduceable , your dealer should be able to figure it out. Lots of posts on this forum about similar issues.
I thought I was done with the tranny issues when I moved from the 99 to the 13 (6 speed). Can't believe Acura still has tranny issues after 15 years!
If it is software related, would resetting the ECU help?
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