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Shudder when switching from drive to reverse, and vice versa

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Old Aug 12, 2009 | 12:45 PM
  #1  
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Shudder when switching from drive to reverse, and vice versa

Like the title says, sometimes when I switch from drive to reverse or vice versa, the car will shudder when I turn the steering wheel right, usually only lasts about 2-3seconds but it feels like the car is going to stall.

Car is 07 coupe w/ AT.

Any ideas?
 
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Old Aug 12, 2009 | 01:32 PM
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I was wondering the same thing. This is the same thing that happens with my coupe. In reverse...and I put it to drive. As I turn my steering wheel...I feel a weird vibration. But then it goes away. Anybody have any ideas on what could cause this?
 
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Old Aug 12, 2009 | 07:14 PM
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Yes, this is the EXACT same thing happening to me...

Any input would be appreciated.
 
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Old Aug 13, 2009 | 03:08 AM
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I don't know for sure what the problem is, but I can venture a couple of guesses.

First, when you are switching between forward and reverse, the car's not moving. If you're turning the steering wheel at this time, you're working the power steering pump really hard. In my car, I notice RPM's drop from this fact alone, even in neutral.

Second, when switching between gears, the transmission is flipping all sorts of solenoids, rerouting fluid, etc. This also puts a load on the engine.

It sounds like those two things together could be a bit much for the car to handle at idle. Add a tiny bit of gas, see if it makes the shudder go away. I can't test this myself since I have a 6MT.
 
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Old Aug 13, 2009 | 03:21 AM
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I have this same exact issue. The slower I go the less the vibration/shudder is. Any one?
 
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Old Aug 13, 2009 | 09:21 AM
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Ditto, my coupe has been acting wierd when im putting it in gear, i really hard hit
 
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Old Aug 13, 2009 | 09:24 AM
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I think there is a TSB for the rear axle to be tightened. Mine makes a noticeable "shift" and its driving me crazy.
 
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Old Aug 13, 2009 | 08:43 PM
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bump for more input.
 
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Old Aug 14, 2009 | 04:37 PM
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It was my power steering drive belt. It was cracking...

After only 20k km too...
 
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Old Aug 14, 2009 | 06:05 PM
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Originally Posted by PublicEnemy
It was my power steering drive belt. It was cracking...

After only 20k km too...

WTF are you serious!!!?? How did you find out? And do you need to replace immediately?
 
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Old Aug 15, 2009 | 09:31 PM
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Took it to the dealership.

Cost like 80bucks for them to do it, probably like $30 for the drive belt itself.

I would get it taken care of sooner rather than later. Mine was pretty cracked, looked like it was about to come loose resulting in a lot more than $80 bill.
 
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Old Sep 26, 2009 | 06:27 PM
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bump for more input. Mine shudders too, what does this power steering belt look like and where can I find it?
 
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