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Old 06-15-2014, 06:02 PM   #1
surferdude166
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Member#: 54970
Join Date: Feb 2004
Chapter/Region: TXIC
Location: Webster, TX
Vehicle:
2014 WRX Hatch
Silver

Default Reverse to First Noise

Ok, so I searched and couldn't find anything... This only happens when it's a cold start, ambient temperature seems to have no effect. When I back out of my driveway and then put the car into first gear, I get a noise much like a can being crushed when the car starts moving forward. This is my third vehicle that is a M/T, and my second WRX, neither of which ever did this. I don't drop the clutch or even engage first until I'm at a complete stop. I have had no other transmission issues, noises or anything. She's a beautiful machine, but this is frustrating! 3700 miles BTW.
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Old 06-15-2014, 06:07 PM   #2
pearl08
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Member#: 282356
Join Date: May 2011
Chapter/Region: Tri-State
Vehicle:
2008 wrx

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Have you checked any mounts?
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Old 06-15-2014, 06:33 PM   #3
JuNe_Yoo
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Member#: 386884
Join Date: Apr 2014
Chapter/Region: TXIC
Location: Houston, TX
Vehicle:
2014 WRX
Ice silver metalic

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Hey. Mine does that too. 14 WRX hatch.
Mine does it when it start moving forward after long Park. (e brake applied)
It does sound like crushing plastic bottle. It does it only once. Not repeating.

Searched but not found answer as well. Mine is brand new. 1k miles now. I don't think any mount/bushings are out.
I assume the e brake is not releasing until I move it it?

Any help would be appreciated.

This was my for first question when I go in for first oil change. I will keep you updated if I I get an answer from dealer.
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Old 06-15-2014, 08:14 PM   #4
Trae32566
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Member#: 353990
Join Date: Apr 2013
Chapter/Region: TXIC
Location: Arlington, Texas
Vehicle:
2013 Impreza WRX 4dr
Black

Default

There are only a few things I can think of that would make that noise.
You probably already know reverse is not a synchronized gear. Basically this means there's no synchro to help match speeds between the gear and the input shaft, so if it's off even a tiny bit it'll grind. In practice this means if you move in any direction while changing gears into reverse (even a hair) it'll grind even with the clutch in.

The other thing it could be is the brakes. I've never gotten a sound like you're describing; however, the newer cars (I have a 2013) have Hill Assist, and if you're on incline it'll kick in and sometimes make awful noises / hold you back if you try to take off immediately. I've stalled a few times when I first got the car because of it. Other than that I have no idea.

Edit: just read the part about the e-brake and you are indeed correct. It will initially hold for a few seconds. You can hear when it lets go (it has a distinct sound, almost like a hard tapping) and it happens on most cars.
Also for future reference, our E-brake actually uses a separate caliper. If you notice on the brake swap threads people have problems due to the different rear rotor hat size (IIRC the STi us 190mm, the WRX 170).

Last edited by Trae32566; 06-15-2014 at 08:21 PM.
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Old 06-15-2014, 08:59 PM   #5
JuNe_Yoo
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Join Date: Apr 2014
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Location: Houston, TX
Vehicle:
2014 WRX
Ice silver metalic

Default

Trea I think it's Hill assist. Should I be worried if it makes noise?
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Old 06-15-2014, 11:36 PM   #6
Trae32566
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Join Date: Apr 2013
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Location: Arlington, Texas
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2013 Impreza WRX 4dr
Black

Default

Quote:
Originally Posted by JuNe_Yoo View Post
Trea I think it's Hill assist. Should I be worried if it makes noise?
Well there's nothing wrong with getting it checked out (or ask another owner in person, take a video, etc) but no it should be fine :-).
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