Question about 1992 Volvo 940
The motor runs when I try to open or close the sunroof, the sunroof even attempts to move. It seems as if it's off track. Can anyone tell me how to remove / repair my sunroof. I handle all my own repairs just need a little guidance on the proper way to remove this sunroof
To find out if it is off its track you can remove the cover between the rearview and the sunroof that is the motor/drive assembly. there is a slotted pin in this assemply that you turn with a screwdriver to move the sunroof manually if it wont move manually then you have a bigger issue. sometimes thie drive assembly screws get loose, i believe there are two screws that hold it up,when those are loose you will get a grinding sound when the gears skip. good luck.
Posted on Mar 21, 2009
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Posted on Jan 02, 2017
It is a rather involved procedure requiring the removal of the headliner and all the related trim work of the interior of your car. If you have never done it before it is quite likely to cost less to take it to a dealership for repair.
Posted on Feb 25, 2009
Tips for a great answer:
To check the condition of your original sunroof guides:
- Gl*** in closed position.
- Locate & remove 3 torx bolts on each side of sunroof glass. Lift glass out of sunroof opening & set aside in a safe place.
- Locate "J" shaped cover plate at front of sunroof track assembly. Remove 2 torx bolts from each cover plate.
- Lift up bracket to remove.
- Inspect the plastic guides on each side. The sunroof cables attach to guides on front outer corner. Inspect this area closely for damage.
- Do not operate the sunroof with the J plates removed.Troubleshooting:If the sunroof guides are not broken & the glass is a uniform height along the rear edge your problem may be a stripped gear inside the motor. The motor has a manual override:
- Get access to the motor by removing the map light/switch console or lowering the front of the headliner.
- Insert a large standard screwdriver into the nylon bushing at the center of the motor hub. Push up & turn the screwdriver to manually move the sunroof glass. If the unit will fully open & close manually, you most likely only need a replacement motor.
If your sunroof is stuck in the open position follow these steps to get it closed:
- Remove the glass.
- Try to close the unit without the glass. Many times one side will still be operational and close correctly.
- Try to slide the inoperable lift arm forward. If it moves, slide it forward until it stops.
- You now need to slide the original plastic guide forward to lower the arm to the closed position. Using a standard screwdriver, push it forward. The lift arm should begin to lower.
- If the lift arm will still not fully lower, remove the J plate as explained above, sometimes the sunroof cable will need to be lifted up to allow the guide to fully slide forward.
- Reinstall glass.
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