Rough downshift
Thread Starter
Instructor
Joined: Sep 2013
Posts: 212
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Rough downshift
I have an 09 LS3 automatic. The car has about 30k miles on it. When I have the car in S mode while using the paddles shifters every now and then there is a rough downshift from 2 into 1st. I've never felt it in the other gears. Is this something normal or should I be worried?
Team Owner
Joined: Sep 2000
Posts: 25,019
Likes: 2,713
From: Far NW 'burbs of Chicago
St. Jude Donor '13
Rough like it doesn't rev-match, or Rough like it slams into first, or something else?
We have a similar 2009, Z51 so it has the performance axle ratio. A paddle downshift into first can be a little "rough" because of the huge engine braking we get in first, but the shift itself seems ok.
We have a similar 2009, Z51 so it has the performance axle ratio. A paddle downshift into first can be a little "rough" because of the huge engine braking we get in first, but the shift itself seems ok.
Team Owner
Joined: Sep 2000
Posts: 25,019
Likes: 2,713
From: Far NW 'burbs of Chicago
St. Jude Donor '13
If you don't get any better answer, I'd take it to someone who can scan for stored trouble codes.
I'm told that some of the cheap scanners can only scan for some codes and not all, you might look into that issue before deciding who to take it to.
Keep us posted...
I'm told that some of the cheap scanners can only scan for some codes and not all, you might look into that issue before deciding who to take it to.
Keep us posted...
