Loud click in reverse

[Rob_R]

Greetings.

I have a 15 SHO w/PP (ngk 1 step colder plugs, 170f tstat, 3bar map, bcb tune). This problem occured before the "stage 1" installation. In reverse, i notice a very loud click that is fairly deep in pitch. It happens inconsistently, and it will happen even with very light throttle. It ususally happens when I stop the vehicle and reverse (backing into a parking space, for example). The vehicle drives normally and does not feel as though it could fail catastrophically. I brought this issue to the dealer last year and complained multiple times but they did not diagnose anything. I am concerned that this could be a PTU, CV or driveshaft issue. I'm not here to find out how I can screw a dealership out of charging me for parts or service, I am here to try and solve this very annoying and possibly very problematic functional issue.

Thank you

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[Greg9933]

My 2015 w/ PP has done this since new. Dealer (months ago ) said normal noise associated with drive train engagement.

No problems, just over 27k.

Greg9933

 

[Rob_R]

My 2015 w/ PP has done this since new. Dealer (months ago ) said normal noise associated with drive train engagement.

No problems, just over 27k.

Greg9933

I just can't come to terms with that. It didn't do that when I bought it at 55 miles. I'm not drag racing in reverse, but it echoes off the buildings louder than my radio and makes me turn my head. I can understand little engagement clicks, but this sounds like a metal ****** snapping in half lol. Do I sound picky? I mean, I've driven several automatics and none of them do anything remotely close to this besides normal engagement noise. I shift to reverse, wait for it to engage, and then start backing up only to hear this absurd noise under minimal torque application lol... I will attempt to document the noise while I'm out this evening.

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[Greg9933]

Ok. That is not what mine does. I get a clicking noise in the cabin upon initial reverse engagement. Not remotely as ypu describe, plus not when the car is moving.

Greg

 

[glockcoma]

Maybe this

http://www.revbase.com/BBBMOTOR/TSb/DownloadPdf?id=187146

 

[Rob_R]

Maybe this

http://www.revbase.com/BBBMOTOR/TSb/DownloadPdf?id=187146

My passenger front halfshaft was replaced at only 12k miles (I am at 46k now). Is this a common issue for SHO owners? I feel that this should not have broken so easily.

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[jfalkingham]

My 2014 has been doing this from day 1. This is the TSB I've been searching for. Thank you!

 

[dajsho]

My 2015 has also been doing this from day 1. Calling the dealer now. Thx.