1991 GMC Sonoma Q&A
1991 GMC Sonoma Question: Turn signals
Sounds like you need to check your fuses. It sounds like one of them is out. Check the owners manual or a Haynes Repair manual for the proper type and size of amp needed for this. - wbelisle
There are two fuses related to these functions. One will be located on the driver side fuse box panel located on the dash behind the drive side door. (This is not the fuse related to you problem). The other fuse will take a bit of labor to get to. This one is located to the left of the ash tray underneath the dash. You will need to remove the bolts and screws along the bottom of the dashboard to get to this. It will be a silvery cylinder shaped fuse. Chances are you'll see two and the one on the left controls the flashing attributes of your blinker and hazards. Replacing this should solve your issue. - Visitor
I had a problem with my 2000 Sonoma when the right parking light's would not work. It turned out after chasing wires that it was a bad ground. You should check all of your wiring since you never know what is rusted out to the point of no return. NCS - normsylvester25
well heres my problem and im stumped,last night while i was driveing home my turn signals quit working cause the fuse blew,i changed the fuse today and turned on the left signal and it...
Both my turn signal lights on my dash are on, outside the truck the rear blinks fine but in the front both signals are on. Checked all fuses and wiggled a few wires under the hood but cant fins dec...
I can't seem to find a short, the fuse is fine, both headlights are fairly new, the switch seems to have power and works, the dash lights work fine, dome light works good, tail lights/signals/brake...
problem has been consistent for about a week without any warning lights coming on. only way light goes out is if i pull the brake fuse.
i have rear tail light no brake no left turn signal looking for possible fuse prob check all rest right turn brake work