"Firewrx234" (firewrx234)
09/11/2014 at 11:10 • Filed to: Oppo Help
0
14|
"Firewrx234" (firewrx234)
09/11/2014 at 11:10 • Filed to: Oppo Help | 0
| 14 |
So, backstory, my Dad bought a 2007 Chevy Avalanche LTZ with all the options. It was nice until just about everything has gone wrong. My Dad still loves the thing, just wishes it wasn't in the shop every month.
The newest problem that I have no idea how to fix is that the sunroof (when the truck is turned off) slightly vents. It used to close anytime the truck turned off but now, something has gotten off and it decided that slightly vented is the new closed. Very irritating and no way to close it and have the vehicle off.
The sunroof does function normally in all other circumstances other than when it's told to close.
Please, help me figure this out so that we don't have to go pull the fuse.
Nibbles
> Firewrx234
09/11/2014 at 11:13 |
|
Likely there's something stuck in the track, keeping it from closing all the way and "defaulting" to a slightly open position to reduce breakage possibility. Check the tracks for errant pebbles, pine needles, etc
C-5M Load Smasher
> Firewrx234
09/11/2014 at 11:14 |
|
Probably a recall you didn't get taken care of. It is a GM after all...
|
Firewrx234
> Nibbles
09/11/2014 at 11:14 |
|
Well, it will close, you just have to catch it by pressing open (which pauses it) before it opens.
|
Nibbles
> Firewrx234
09/11/2014 at 11:15 |
|
So, if you just hit close, it'll close then pop back up just a tad?
|
Firewrx234
> Nibbles
09/11/2014 at 11:17 |
|
Yes, you know how sunroofs go to close then they kind of check to make sure they're seated properly? Well, it does that but doesn't come back down all the way. It leaves enough space that I can see light through the gap.
davedave1111
> Firewrx234
09/11/2014 at 11:21 |
|
Rough guess is there's a sensor which tells it where to stop, and that's got knocked or otherwise slipped so it doesn't quite line up with where it's supposed to be.
|
Nibbles
> Firewrx234
09/11/2014 at 11:23 |
|
Found a TSB for a 2006, would probably be the same (or damn close) to your 2007
In the event that one of the following conditions occur, perform the reinitialization procedure listed below prior to following SI for diagnosis.
The sunroof module has driven the mechanism out of the rear of the assembly preventing the sunroof from closing.
The unit will not close fully.
The sunroof appears to be jammed or cycles forward and then stops early.
Sunroof Motor/Actuator Synchronization Procedure
Synchronization will be necessary any time the sunroof motor is removed from the unit. The sunroof module is synchronized when the motor controller learns the full vent position.
To synchronize the sunroof:
(Please read directions completely prior to beginning the procedure)
Turn ON the ignition with the engine OFF.
. DO NOT OPERATE THE SUNROOF GLASS IN THE OPEN/TILT DOWN DIRECTION UNTIL THE INITIALIZATION PROCEDURE IS COMPLETE OR SERIOUS DAMAGE MAY OCCUR.
Using the close/tilt up portion of the sunroof switch, operate the sunroof glass until it reaches the full vent position. Even if the sunroof stops early, proceed to step 4.
Continue to hold the close/tilt up portion of the sunroof switch for at least 30 seconds or until you hear a slight click from the front of the sunroof mechanism.
The slight clicking noise at the front of the sunroof confirms the initialization is complete.
Verify that the system operates normally.
Once the synchronization is complete, the position of the motor and mechanism is stored in the memory of the sunroof motor controller. The motor controller retains this memory even if power is disconnected to the motor.
If reinitialization does not correct the concern, perform the following steps:
Reference SI and use the R&R procedure for removing the complete sunroof module assembly.
Remove the motor from the unit and force the Pin Guides forward until the hard stop is reached. If water channel guides are out of track, there may resistance to moving pin guides forward. If water channel guides are out of track you will need to feed them through the rear of track. Make sure both sides are in complete forward position. In the event track mechanism components are damaged, use Service Kit P/N 88979948. Reference SI Document ID #1364848 for replacement procedure.
Once the track mechanism is repaired, reattach the motor and follow the reinitialization procedure listed above.
Check for proper operation.
|
Firewrx234
> davedave1111
09/11/2014 at 11:24 |
|
Suggestion on how to fix that? Because that was my first thought as well, I just don't know what I'd be looking for.
|
Firewrx234
> Nibbles
09/11/2014 at 11:27 |
|
Thanks, I'll try that and see what happens.
|
davedave1111
> Firewrx234
09/11/2014 at 11:27 |
|
I don't know exactly what you'd be looking for either, although Google might, but I expect it's a little electronic-y looking bit which doesn't seem to be sitting quite right. If you're lucky it's on the rim of the roof or hole, but it might be part of the mechanism instead.
|
Firewrx234
> davedave1111
09/11/2014 at 11:28 |
|
And that last part is the part I'm concerned about. I'm hoping it's in the tracks and obvious. But so far, when doing my own research, I've not seen anything stick out as obviously the culprit.
FJ80WaitinForaLSV8
> Firewrx234
09/11/2014 at 11:29 |
|
I got tired of my sunroof leaking so I proceeded to do the $5 home depot fix.
|
Firewrx234
> FJ80WaitinForaLSV8
09/11/2014 at 11:30 |
|
I guess if worse goes to worst. Lol
|
davedave1111
> Firewrx234
09/11/2014 at 11:49 |
|
Is there a good model-specific forum for the car? If so, they might have more specific advice.