A4 hissing/grinding noise from shifter - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 07-20-2006, 10:10 AM Thread Starter
 
Join Date: Jun 2006
Posts: 137
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
A4 hissing/grinding noise from shifter

Well I posted this on another gto forum to no avail, maybe you guys can help me out:

OK, so upon medium-hard acceleration I'm getting a "hissing" sound coming from around the shifter box area. This sound isn't from WOT at a stop light, more when I'm cruising and then step on the accelerator and the car downshifts....it happens at shifts in between gears. At first I thought it was the CD player changing tracks/CD's as this is very close to what the sound is, like a slight slight vibration/grinding/hiss. Almost like an air release. I've driven with the windows down and do not hear anything coming from the engine or the transmission (that I know of) there is no decrease in acceleration and performance either. It's a vibration that seems to be coming from deep within the car and going through the A4 shifter. I was thinking of brining it into the dealer for them to check out as I'm still under factory warranty and although the car is running fine I don't want this to be something that gets progressively worse

ANY IDEAS as to what this is/how bad it could be??
On a side note I'm actually getting a brand new shifter from another dealership as the aluminum look trim was bubbling/peeling up. The part is on order
BostonF4$ is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 07-20-2006, 04:39 PM
 
Join Date: Feb 2006
Posts: 337
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have the same problem with my M6, was told it was the resonator below the trans. Dealer stated "that's what happens with a hotrod"(?), yeah right, I'm fixing to hit them for another shifter. Mine vibrates above 4K from 2 to 3 and above 140K in 5th.
aintmisbehavinn is offline  
post #3 of 5 (permalink) Old 07-20-2006, 10:08 PM
Premium Member
 
EEZ GOAT's Avatar
 
Join Date: Jul 2005
Location: Phenix City Alabama
Posts: 2,626
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via Yahoo to EEZ GOAT
EEZ GOAT is offline  
 
post #4 of 5 (permalink) Old 07-20-2006, 11:36 PM
 
Join Date: May 2006
Posts: 388
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by aintmisbehavinn
I have the same problem with my M6, was told it was the resonator below the trans. Dealer stated "that's what happens with a hotrod"(?), yeah right, I'm fixing to hit them for another shifter. Mine vibrates above 4K from 2 to 3 and above 140K in 5th.
I'd guess that you are talking about two different "problems". BostonF4$'s problem sounds like a vacuum tube leak to me, but I own the M6 and am certainly not up on the A4 mechanics.

As far as your problem goes, let me know what you find out. I have a prominent "buzz" in the shifter when I am laying on it between 3-5k RPM. I'm over 7k miles now, and from day one, it felt "normal" to me. It's like I'm feeling all of the cylinders hit through the shifter...and it gives me a woody I've felt similar feedback through other manual trannys, so I haven't thought it was a problem. At a cruise, even up to 100 MPH, it's barely noticeable.

I'm still thinking I need a GMM rip shifter...my only shortcoming in driving this car has revolved around the time it takes me to shift. Not really a problem, but it seems like that's the only time anyone has an advantage on me.

I almost set mine sideways tonight...pulled out from a slight incline to a left turn on asphalt, and nailed it...she broke the tires loose like nothing, and about 30-40 deg left angle I just let the wheel slip in my hand, and she righted herself, and I kept on it so she spun a bit while recovering on the right. Damn...how much fun would it be to run this thing on a closed course???

Last edited by ShoddyHog; 07-20-2006 at 11:38 PM.
ShoddyHog is offline  
post #5 of 5 (permalink) Old 07-21-2006, 08:43 AM Thread Starter
 
Join Date: Jun 2006
Posts: 137
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It is definately 2 different problems. I think mine has something to do w/ the shiftbox internals more than the tranny or engine (I hope). I'd have to say it sounds almost identical to the sound the blaupunkt makes when changing cd's. Only more consistent and higher pitched. I don't know....I'm just going to keep watching it and if it gets worse/different I'll bring it to the dealer. When the new shifter comes in I'll let the dealer know about it and if it doesn't right itself after the new shifter's put in I'll investigate further. I'm nthe no mechanic, but the more I think about it the less it sounds like an "oh $****" problem than a build quality/loose housing part or something. I dunnoo...wish someone else had the same thing so we could compare notes.

Only happens under hard acceleration on the highway when the auto downshifts in between gears it is prominent.
BostonF4$ is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 2004-2006 GTO > Drive train, suspension, alignment and brakes.

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome