1991 Buick Riviera Sunroof will not close

Tiny
BSCHOTT
  • MEMBER
  • 1991 BUICK RIVIERA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
I have never had problems with this sunroof before so this has me befuddled.

I was driving my Riviera recently when the engine just died. I pulled over to the side of the road, put the car in park and tried cranking it over. It would start and randomly cut off the engine. I was able to limp back home at ~5 mile intervals and opened my sunroof during this jaunt back home to stay cool. At one point the engine wouldn't turn over at all so I pulled fuses from the fuse box in the center console seeing if perhaps one of them had been 'tripped'. They all looked fine. Surprisingly, my interior lights which hadn't worked for a year all came on after playing with the fuses. This made me fairly happy but I digress.

Once at home I asked a friend what could be wrong and he suggested I try my spare ignition key, which is pretty much brand new, and low and behold my car ran just fine. I had him follow me around for a hour with no cut out problems.

Well once I got home, I noticed that my sunroof wouldn't close. None of the buttons worked! I have a suspicion that it has something to do with the fuses. Especially after messing with them my interior lights now work.

Steps taken to troubleshoot: I disconnected my battery overnight (+8 hours) to reset my computer per a friends suggestion. This didn't help. Tried pulling all the fuses and inspecting them individually. All look fine.

My question is this: All the fuses look fine. Could it be that I need to insert the fuses in some kind of order? I know that the regular fuses don't have a 'positive/negative' but could a fuse be blown that I missed seeing? Which fuse is for the sunroof on this vehicle? Do I possibly need to take this into a dealership and have them reset the computer?

Thanks for any help,
Frustrated in Fargo
Monday, October 11th, 2010 AT 6:03 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You don't need to go to a dealer any mechanic can fix this. But before you do check for a bad relay or actuator. They are near each otherat the top of the header. These could be the problem. It could also be a bad switch.
Was this
answer
helpful?
Yes
No
Tuesday, October 19th, 2010 AT 6:30 PM

Please login or register to post a reply.

Sponsored links