While I was over at the detailers, we noticed these rough spots on the back deck of my 2002 coupe. He says it's a bad fiberglass job by GM. Does anybody know anything about this . It is most diffently under the paint.

 

The is a TSB on bubbling rear deck lids, search for it. Only fix is a new lid, some kind of insulation leached through the substrate and contaiminted the base material.

 

My guy said he can scrape out the bas spot fill with some type of Polycarbonite and repaint. Yes , No??

 

I've noticed this on my 2000 coupe, too. It's so subtle you can only see the textures if the car is clean and you are looking at it in a reflective light on the surface of the deck lid. I wasn't aware of the TSB until just reading this post - anyone know if it ever gets "worse" as in paint peeling off, or if it just stays the way it is now?

 

If you need a copy of the TSB on this problem, PM me your e-mail address.

 

I've got it on mine. Here's The TSB reference:

2001 Chevrolet Corvette Hatchback TSB #10012129
Year:2001
Make:Chevrolet
Model:Corvette
TSB Number:040851003
NHTSA Number:10012129
TSB Date:July 1, 2004
Date Added to File:February 14, 2005
Failing Component:Structure:Body:Hatchback/Liftgate
Summary:Rear hatch surface blistering.

 

A few have tried to repair this only to have it return soon after.
If GM could have repaired this they would not have just replaced the deck lid in the field. GM's fix was a NEW decklid. Once whatever it is contaiminted the deck-you'd have to cut out the spot to really fix it, the problem starts on the backside.

 

Document ID# 1538514
2000 Chevrolet/Geo Corvette
--------------------------------------------------------------------------------

Rear Hatch Surface Blistering (Replace Hatch) #04-08-51-003 - (Jul 20, 2004)
Rear Hatch Surface Blistering (Replace Hatch)
1999-2004 Chevrolet Corvette

Condition

Some customers may comment that the paint is blistering around the rear hatch. Refer to the area shown in the illustration above.

Cause
An insulator material between the inner and outer panel may be leeching through the outer panel causing it to blister.

Correction
Replace the Rear Hatch. Refer to SI Document ID #657265.

Parts Information
Part Number
Description

10374349
Panel Assemble Rear Compartment

Parts are currently available from GMSPO

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

B3710 Lid, Stowage, Replace 0.4 hr

C0660 Glass, Back Window Replace (Fixed Roof) 1.0 hr

A2730 Lid, Rear Compartment -- Refinish/Clear Coat 1.6 GK

Add:

Paint Mix Time 0.3 hr

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

 

Too bad its not a recall. I can't even imagine what it would cost for that. I have an 04 and it has it a little.

 

Mine's been the same for the six years Ive had it (and likely a lot longer) without change. Dont go nuts about it until you have to.

 

Thanks for the information. Maybe I won't bother trying to fix it, without replacing the whole lid.

 

Unfortunately most of us have it. If you look really hard, with a clean and polished car, you will see some irregularities. Sucks, but I guess we just have to deal with it.