[SOLVED] Sun roof repair - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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  #1  
Old 08-19-2010, 11:18 PM
hatchet669's Avatar
hatchet669 hatchet669 is offline
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2003 Chevy TrailBlazer LT
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Sun roof repair

How to repair sunroof.

Vehicle used for documentary: 2003 Chevy Trailblazer LT (other vehicles may have slight difference's)

Symptoms:
loud snap or bang while opening or closing sunroof
unable to close or open sun roof

How to prevent:
clean and grease track regularly, grease that came with repair kit looked like axle grease

Parts needed:
ordered repair kit from http://www.sunroofdoctor.com at time of writing cost is $119.00 (no part number must search by vehicle)


copyright stock image from www.sunroofdoctor.com of said repair kit

Tools needed:

Socket set
Torx set
Pliers
Flat head screwdriver
Rivet Gun
Towels
A friend is recommended for some parts

OPTIONAL STEPStep 0: Remove glass
I found it easier to take the assembly in and out easier with the glass removed.

To remove glass: 2 small torx screws on each side of sun roof opening from inside of vehicle. Picture is of driver side screws.



Step 1: Drop head liner processes vary vehicle to vehicle
To drop the head liner, following items need to be removed:
A pillar
B pillar
c & D pillar
Coat hanger hooks in trunk roof
Trunk light cover
2 plastic pull clip next to trunk light
4 over door grab handles and light covers
2 sun visors (was a huge pain for me)
Center roof console

After all that is removed the head liner can come down. It is attached to roof with velcro in some areas. the head liner MUST come straight down and sit on top of the seats. There are electrical wires hot glued to the roof liner with no disconnects. So pulling the head liner out all together would require alot more work.

Step 2: Removing Sun roof assembly
This is when the extra hands come into play. As its a bulky item trying to carry out over the head liner. From front to back in the photos.

2 small bolts at front of sun roof near winshield


Disconnect plug to electrical motor as shown in 3rd picture below. It is located at the rear of the assembly.
There are 2 drains per side to disconnect. 1 in front and 1 in back, they just pull off, no mechanical fasteners.
Remember how the plastic pin is positioned, as i found this helpful for re-aligning the frame when ready to install back in.
There are 4 bolts on each side as circled below that need to be removed.




Step 3: Dis-assembly of motor
The motor needs to be removed in order to complete repair.

Assembly on table. Unit is upside in picture.


As with any project, do one side at a time.

First part is to remove the bolt circled near the rivets. With that bolt removed the galvanized channel can swing out of your way.

Second Part is to remove 3 rivets located at rear of assembly. They need to be drilled out. Drill size is specified in directions that come with repair kit.



With rivets removed, carefully release the plastic cover that was attached with the rivets. There is some caulk? material holding it down. Again be careful as to not damage this part.



Third part is to remove the motor. 3 torx screws hold it on.


With motor removed.


Step 4: Removing damaged parts

The unit will need to be flipped over. Now the rear drip tray needs to be removed. I believe there is 1 screw on each side to remove it.


Next part is to remove the traveler (pictured below). It will be easier to remove with the motor no long attached.


As you pull the traveler out you will see this coming out of a black tube on the other side. Do not be alarmed, it is just the extra cable from the traveler.


In order to get that parts off you will need to push down a little nub in the track designed to stop the parts. I used a hammer and a screw driver to push it down enough to slide the parts over. YOU MIGHT NEED TO DO THIS STEP BEFORE PULLING OUT THE TRAVELER I dont remember


Now for the damaged parts. BEFORE OR AS YOU PULL THEM OUT REMEMBER HOW IT GOES AND MATCH IT TO THE NEW PART TO INSURE IT GOES BACK TOGETHER RIGHT The pictures here cant show you perfectly how it goes.

But here is what i saw on my passenger side. Clearly damaged.


Slide the parts off once your sure of how it goes together.
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  #2  
Old 08-19-2010, 11:18 PM
hatchet669's Avatar
hatchet669 hatchet669 is offline
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2003 Chevy TrailBlazer LT
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Step 4a: the parts

Here are pics of the new parts next to the old.



And the culprit of it all. Broke into 3 or 4 pieces.



CLEAN AND REGREASE TRACK

New parts installed. Reverse of tear down.





Step 5: Aligning the brackets to proper position.

The directions go over this with you also. You use a 1/8" drill bit(?) and slide it through a hole in the 2 parts below to place the brackets in the proper closed position. I recommend checking this a few times including before you put it back in the truck.



Step 6: Repeat on other side

Step 7: Reinstall motor
Reinstall rivets removed earlier.
Reverse of removal.

Step 8: Install assembly
Reinstall assembly into vehicle.
Reinstall glass.
Follow memory relearn procedure and test a few times.

Step 9: Put vehicle together



Extra notes
Motor Information






Many thanks to Tyler (Chevy-TB-lover) for his help on the tear down and reinstall, the pictures, and the use of his shop.
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  #3  
Old 08-20-2010, 09:32 AM
10856 10856 is offline
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2003 Chevy TrailBlazer LT EXT
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great job, I will subscibe to this thread for future reference, as the dealer had to change mine twice......the rivits you removed, did you replace them with bolts and nuts?
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  #4  
Old 08-20-2010, 10:39 AM
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hatchet669 hatchet669 is offline
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Quote:
Originally Posted by 10856 View Post
great job, I will subscibe to this thread for future reference, as the dealer had to change mine twice......the rivits you removed, did you replace them with bolts and nuts?
no.. the repair kit comes with new rivets... so i put the new rivets in...

the kit comes with the 6 parts, the rivets, directions, 2 swabs, and a container of grease... by far the best complete kit ive ordered to repair something...
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  #5  
Old 08-20-2010, 10:43 AM
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liquidtherapy liquidtherapy is offline
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Thread is now Stuck Nice write-up!
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  #6  
Old 08-20-2010, 11:09 AM
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hatchet669 hatchet669 is offline
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Quote:
Originally Posted by liquidtherapy View Post
Thread is now Stuck Nice write-up!
whats it stuck in?

thanks... just hope it helps someone... my first sticky...
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  #7  
Old 09-16-2010, 01:37 AM
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1builder 1builder is offline
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holy geeze complicated but thanks to these pics im gonna give it a go. here goes nothing.
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  #8  
Old 10-29-2010, 02:24 PM
RDRMKR RDRMKR is offline
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Post Sun roof module programming

For reprograming of the module perform the following procedure:

1) Put the sunroof in the fully closed position
2) Press the open and hold the button until you hear the motor make a sound (this takes 30-60 seconds)
3) Then you should be reprogrammed and roof should operate normally

This procedure is what worked best for me I hope it helps
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  #9  
Old 10-29-2010, 02:40 PM
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loveless loveless is offline
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Awesome write up!!! You just reminded me I have to clean and grease my track before winter.

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  #10  
Old 10-29-2010, 07:09 PM
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hatchet669 hatchet669 is offline
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Quote:
Originally Posted by loveless View Post
Awesome write up!!! You just reminded me I have to clean and grease my track before winter.

highly recommend that... and if open during fall remove leaves...
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