I searched the archives for this first, but didn't find anything... so...

Anyone experience a shifter rattle under acceleration? I have a 2005 MN6, F55 with 1000 miles on it (if that matters). Reminds me of the same rattle my 1965 vette had 40 years ago. <laughing>

Thanks in advance...

 

My 05 shifter does not rattle but my 65 does!! Some members have reported this previously.

 

Hehe, damn, I can still hear that old shifter rattle in my mind. <laughing>

Funny, but the C6 has the same sort of noise.

 

My Z51 w/9000 miles rattles like crazy from roughly
2500 rpm to 4000 rpm. It's pretty irritating.

Pat

 

That's the one.

 

My 06 Z51 does it too...

 

Mine did for the first 1500 and never since

 

but only in 2nd whilst getting on it ....you?

 

check for this
danny



6 Speed Shifter Rattle Growl Buzz Noise - keywords 5.7 boom clash clutch late lazy lo5 LS1 MM6 MN6 M12 neutral pinion shake vibration #PIP3104B - (Nov 3, 2005)
6-Speed Shifter Rattle Growl Buzz Noise
1997-2006 Chevrolet Corvette

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Condition 1. 1997-2004 Corvette:

Shifter buzz noise at approximately 3000 RPM.

Condition 2. 1997-2006 Corvette:

Gear rattle or buzz noise at low RPM (below 1500 lugging the engine) or during engine shut down. Also neutral gear rattle noise with the transmission in neutral and the clutch engaged. These noises may be worse with the air condition compressor engaged.

Recommendation/Instructions:
Condition 1. 1997-2004 Corvette:

A revised shifter assembly with added isolation bushings is available as part number 10331311. Part numbers are subject to change so please use any updated part numbers if any become available.

Condition 2. 1997-2006 Corvette:

Gear rattle or buzz noise at low RPM (below 1500 lugging the engine), during engine shut down or also neutral gear rattle noise with the transmission in neutral and the clutch engaged are all normal operating characteristics of the 6-speed transmission. No repair attempts should be made on these conditions. Please refer to the latest version of informational service bulletin 03-07-29-004 which discusses normal operating characteristics of manual transmissions.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.



GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION


© Copyright General Motors Corporation. All Rights Reserved.


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Thanks, Danny. I truly appreciate it.
Brad

 

'06 Z51 vert and no rattle...so far (100 miles on it).

 

Same here! Strange. I was just about to take it in when it stopped.

 

same here

 

According to those bulletins, the rattle is perfectly normal in the C6! Mine does it, but it is pretty quiet.

 

Z51 in 2nd Gear also

 

I'm starting to beleive the rattle is actually the **** rattling againt teh top of the shifter. They use cheap plastic threads on the know that eventually, won't hold up.

I'm going to pull mine and coat it with some silicon (the kind used for fishtanks). If it works, I'll report back.

 

I have this shifter rattle (or buzz), most noticeable at around 40 mph in 3rd gear. But, I can also make the shifter rattle while parked, by revving the engine to between 3k and 4k RPM.

Oddly enough, it only rattles once the engine is warm, never cold. I can stop the shifter from rattling by pushing slightly to the left or right, which (I think) puts the shifter rod in contact with the rubber surrounding the hole through which the shifter rod passes.

I'm pretty confident that what we're hearing is the rod vibrating against the shifter ****. I took my **** off, and tried to put a damping material between the **** and rod. The tolerances are super-tight, it's almost impossible to get the **** on when there's something (even something super-thin) between it and the rod.

My car was in the shop several times for this issue, even had the regional rep come out and listen to it. Not fixed, I'm officially on record with Chevy as "dissatisfied."

The TSB speaks of two conditions. One is the shifter rattle; supposedly (I'm told), the C6 comes from the factory with the C5 fix (added bushing isolations) already installed. The second is with respect to gear noises, due to (for example) not having a dual-mass flywheel to dampen the gear noise. Completely separate issue from what we're talking about.

I've just come to live it....Or, I either take the top off or turn the radio up.

 

Yes, please do, I didn't try this approach. I did pull the shift pattern off the top of the ****, and filled the top of the **** with silicone, as I thought perhaps the pattern itself was buzzing. Seemed to help a little, but wasn't a complete cure.

 

The other thing to check is the screw that holds a ring in at the base of the shifter ***. This is what was the story with mine. You can feel the ring though the leather. If you hold that tight does the noise go away?
You can pull down the leather shift boot and check the ring and the screw. In my case and at least a couple of others from this forum the screw was too long and thus couldn't be tightened against the ring.

Worth a check and if so easy to fix.

 

Would this washer be the ring you had in mind? Unfortunately, mine is tight as can be.

Maybe Chevy changed the threaded hole for the screw at some point in production? On my car ('05, #10693), the thread is thru-hole, so it's almost not possible for a screw to be too long---it will just start coming out the other end of the rod until it hits the back side of the shift **** (see bottom pic). But, I can see where if the rod wasn't tapped all the way through (or deep enough), a long screw couldn't be tightened completely.