Blue Demon Owner

Hi, all:

Had the new roof handles installed on Friday and the lube done per the TSB.......NOT A SOUND SINCE!!! Took it out for a run over some bumpy pavement to make sure. The tech was kind enough to give me the rest of the tube of GM Superlube, so I'll be periodically re-lubing the latch pockets and rear pins to keep it this way.

Also had the rear differential fluid changed per that TSB for the "clunk, clunk" sound in the back. All fixed!

Now the Blue Demon is perfect!

Rick
Always Wave!

dvilin

Glad it all worked out for you, now you can fully enjoy your Vette again.

Shortimer

That's good news. My '08 has started to snap, crackle and pop recently so I should look into this.

Blue Demon Owner

Anticipating the questions, here are the two TSB's:

Roof noise:

TSB for Roof Handle Replacement & Lubrication:

Roof panel noises/C6 08.08.67.013A

Subject: Snap, Pop or Rattle Noise From Lift Off Roof Panel While Driving (Replace Front Lift Off Roof Panel Handles and Lube)

Models: 2005-2009 Chevrolet Corvette

with Removable Clear Roof Panel (RPO CC3), Removable Sun Roof Panel (RPO CF7) or Dual Removable Roof Panels (RPO C2L)

Condition
Some customers may comment on a snap, pop or rattle noise coming from the lift off roof panel while driving.

Cause
This condition may be caused by the nylon roller inside the left and/or right front roof panel latching handle becoming loose and causing the roller to move on the pin, creating the noise.

Correction
Replace the left and right front lift off roof panel handles (1) and lube. Refer to Roof Lift Off Panel Front Latch Handle Replacement in SI. The updated handles have a new design ramp insert in place of the nylon roller.

Technicians are to apply GM Super Lube® with PTFE, P/N 12371287 (in Canada, P/N 10953437) to both sides (left and right) at the following areas:

Apply GM Super Lube® around the entire guide pin ball (1) on the roof panel.

Apply GM Super Lube® inside the "pocket" of the stainless steel track (1).

19206591
Handle, Roof Lift Off Panel - Left

19206592
Handle, Roof Lift Off Panel - Right

12371287 (US)
GM Vehicle Care Super Lube® with PTFE


Rear Differential:

Document ID# 2048181
2005 - 2008 Chevrolet Corvette

Subject: Rear Axle Clunk and/or Chatter Type Noise on Turns (Drain/Refill Rear Differential Fluid) #07-04-20-002A - (01/09/2008)

Models: 2004-2008 Cadillac XLR (Including V-Series and Export)

2005-2008 Chevrolet Corvette (Including Z06 and Export)

This bulletin is being revised to change the fluid recommendation and to remove the requirement of adding friction modifier. Please discard Corporate Bulletin Number 07-04-20-002 (Section 04 -- Driveline/Axle).

Condition
Some customers may comment on a clunk and/or chatter type noise from the rear of the vehicle while making turns.

Cause
This condition may be caused by slip/stick of the posi-traction clutch plates due to insufficient limited-slip axle additive. As plates slip and stick, a jumping or jerking feel occurs accompanied by a clunk noise.

Correction
Important: DO NOT remove the differential cover from the rear or the two sides. It is not necessary to flush the old fluid from the differential.

Drain and refill the rear differential fluid using the procedure listed below.

Draining Procedure

Raise and support the vehicle.
Clean any dirt from around the differential drain plug.
If not equipped with a differential cooler, remove the drain plug (1) and washer (2) from the differential.

If equipped with a differential cooler:
4.1. Using a bent tip screwdriver, remove the quick connect fitting retaining ring (3) from the quick connect fitting (4) and discard the retaining ring.

4.2. Remove the differential cooler inlet pipe from the differential nut.

Drain the fluid.
Filling Procedure

If not equipped with a differential cooler, install the drain plug (1) and washer (2) to the differential.
Tighten
Tighten the differential drain plug to 35 N•m (26 lb ft).

If equipped with a differential cooler:
2.1. Install a new retaining ring.

2.2. Connect the differential cooler pump inlet pipe (2) to the differential. A distinct snap should be heard or felt when assembling the cooler pipe to the fitting.

2.3. To ensure the cooler line is properly installed, give the cooler pipe a gentle pull.

Clean any dirt from around the differential fill plug.
Remove the fill plug and washer from the differential.
Important: DO NOT add any limited-slip additive (friction modifier). With this new fluid (Dexron LS Gear Oil 75W-90) it is no longer required to add friction modifier. If friction modifier is added, it will cause the fluid to lose some of it's friction reducing properties as well as reducing seal life.

Fill the differential with the new DEXRON® LS gear oil, P/N 88862624 (Canadian P/N 88862625). Refer to the table listed below for lubrication specifications.
Check the fluid level to ensure it is even with the bottom of the fill plug hole to no lower than 6 mm (0.25 in) below the opening.
Install the fill plug and washer to the differential.
Tighten
Tighten the differential fill plug to 35 N•m (26 lb ft).

Important: Steps 8-13 are for vehicles equipped with the differential cooling system. For vehicles not equipped with the cooling system, proceed to step 14.

Raise the vehicle so the wheels are about a foot off the floor. Make sure the wheels can spin freely without obstruction from the hoist or any nearby items.
Start the vehicle and put the transmission in second gear. Slowly accelerate to 10 mph and hold this speed for one minute.
Turn the vehicle off .
Raise the vehicle.
Check the fluid level in the differential. Add fluid until the recommended level is reached.
Lower the vehicle.
Once the differential fluid has been changed, the vehicle must be driven in 8-10 tight figure eight maneuvers to heat the fluid and allow the fluid to be worked into the clutch plates.
Lubrication Specifications Application
Quantity

Metric
English

2004-2005 XLR (Including Export) and 2005 Corvette (Non Export)
1.72 liters
1.85 quarts

2006-2008 XLR (Including V-Series and Export) and 2006-2008 Corvette (Non Z06)(Non Export)
2.0 liters
2.11 quarts

2005 Corvette Export
1.88 liters
1.99 quarts

2006-2008 Corvette Export (Non Z06)
2.16 liters
2.28 quarts

2006-2008 Corvette Z06
2.75 liters
2.91 quarts

Parts Information
Part Number
Description

88862624 (US-1 Quart)

88862625 (Canada-1 Liter)
DEXRON® LS Gear Oil

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

F9709*
Drain & Refill Rear Axle Fluid
0.6 hr

* This is a unique labor operation number for bulletin use only. It will not be published in the Labor Time Guide.

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.

Document ID# 2048181
2005 Chevrolet Corvette

So there you go!

Rick
Always Wave!

Shortimer

Great, just the info I need for my service folder. No issues with the rear diff yet but the roof panel noise has begun Thanks for posting!

talon90

Blue Demon Owner

I would be very remiss if I did not acknowledge all of the work on the roof issue that was done by Talon90, including the original posts of the TSB and a number of great photos on where to lube, etc.

Perhaps Talon90 will post the title of his thread here so folks new to the issue can find it. I can't recall the thread title at the moment.

Rick
Always Wave!

danl72

Cool.

JT-C6

Good to know there is actually parts available for a real TSB, thanks.

philip_g

wonder if they're still on backorder, the dealer got one of my handles but not the other two, maybe they'll show up today!

bonnell

Mine came in a couple of weeks ago and I had them installed the next day. There has been no noise since. How fine!

philip_g

I've only been waiting 2 weeks on the BO but it sounds like there's a REALLY good chance they'll be in today.
the only reason I care is that the car is in the shop getting new headlights today under warranty.

IndyPacer

Same story with my dealer, got one , waiting on the other one!

VET4LES

Anyone know the price for those of us out of warranty?

omigosh

97.38 each from Gene.

Blue Demon Owner

This is posted at Post #6 by bub in the thread "My e-clip has failed me":

"Suggest getting your parts under warranty...they are not cheap if bought straight up...

GM PART # 19206591
CATEGORY: Lift off roof window handle
PACK QTY: 1
CORE CHARGE: $0.00
GM LIST: $126.98
OUR PRICE: $77.91 each"

Someone in that thread also suggested checking with Gene.

Rick
Always Wave!

VET4LES

Thanks

Thanks

talon90

Thanks for the kind words Rick. Certainly not necessary but certainly appreciated. Here is a link to the thread on the roof handles that you requested.

http://forums.corvetteforum.com/show...241&highlight=

Paul

wormman1

blue demon, did service dept give you the run around first. how long did it take to install? how long did it take to get the handles, etc before srvc?
thanx
rod

enjoytheview

just to clarify: if we have either of these issues, is this something that will be fixed under warranty at any chevy dealer?