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Noise and slight jerk when downshifting from 2nd to 1st

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XK / XKR ( X150 ) 2006 - 2014

Noise and slight jerk when downshifting from 2nd to 1st

  #21  
Old 01-09-2019, 12:49 PM
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Originally Posted by amcdonal86 View Post
It seems to be a misconception that the car defaults to starting in 2nd gear. I can assure you, at least on my 2007 model, whether in D or S mode, it always starts from 1st at a stop. All you have to do is count the shifts to 6 to realize it!
What I think is being misconstrued here is that with the transmission in MANUAL, the car will shift down to second gear at a stop by itself while also staying in Manual. That's a damage-avoidance thing.

When in Automatic, yes, it goes into first.
 
  #22  
Old 01-09-2019, 01:04 PM
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Originally Posted by Cee Jay View Post
What I think is being misconstrued here is that with the transmission in MANUAL, the car will shift down to second gear at a stop by itself while also staying in Manual. That's a damage-avoidance thing.

When in Automatic, yes, it goes into first.
exactly!
 
  #23  
Old 01-09-2019, 02:16 PM
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Originally Posted by Queen and Country View Post
So yours is not going into 7th gear?

On my 5.0 XKR, always going to 1st would be unpleasant and unnecessary.
I have found it depends on how much throttle I apply. In other words I have to request the 1st gear.
If you use SDD to monitor the current gear like I did on both my '07 and '10 XKR's you will find that they drop in to 1st every time as you come to a halt in auto mode.
 
  #24  
Old 01-09-2019, 02:36 PM
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Originally Posted by u102768 View Post
you will find that they drop in to 1st every time as you come to a halt in auto mode.
How about on acceleration?
 
  #25  
Old 01-09-2019, 03:47 PM
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Originally Posted by Queen and Country View Post
How about on acceleration?
Here is a video I shot when I first got my '10 XKR. It was mainly done to show the opening and closing of the active exhaust valve but has the current gear displayed as well:

 
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  #26  
Old 01-09-2019, 04:07 PM
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Guys... lets be clear... it does go into 1st while in D or DS. Thats not what were discussing. It doesnt go into 1st if you drive in Manual Mode. If youre in D or DS, yes, it will go into 1st. In Manual it will only drop down as far as 2nd. You have to select 1st if you want to The computer is better at selecting 1st and back to 2nd and back to 1st better than you can manually, so in order to avoid user error, it will not drop into 1st unless requested, and if requested, theres a chance that you will shift while at too high speed and you will be in 1st at 5k RPM. So yes, the computer will shift into 1st, but when left to the driver, it wont.
 

Last edited by Brewtech; 01-09-2019 at 04:14 PM.
  #27  
Old 01-10-2019, 04:05 PM
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Originally Posted by Brewtech View Post
Guys... lets be clear... it does go into 1st while in D or DS. Thats not what were discussing.
That is actually what most of this thread is about...
 
  #28  
Old 01-10-2019, 04:22 PM
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Originally Posted by u102768 View Post
That is actually what most of this thread is about...
oh yeah.
 
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