1997 GMC Forward Turn Signals wont work. Front signals will work with head lights turned on and manually operating turn signal up and down. Emergency flashers work fine.. please help..

Marvin

• 85242 Answers
• Posted on Aug 26, 2008

SOURCE: 1997 sonoma turn signal flasher

it is inside, under dash, on left side is a plastic sound protector, mine had 3 screws holding it up, drop this down and straight in you will see a 1" round thing - this is the flasher, pull it out and replace with new one (there are two flat prongs that plug in). It appears this is a well guarded secret!

SOURCE: 1997 sonoma turn signal flasher

The flashers are located behind the instrument panel trim, roughly between the base of the steering wheel and the ashtray, just to the left of the car lighter. To access the flashers, you need to at least loosen the lower instrument panel trim. Just under the steering column there are two screws with star heads. One to the left of the column and one to the right. You need to remove both of these screws. You will need to remove your ashtray. On the upper left corner of the hole left by removing the ashtray is a 9/32 hex head screw. You need to remove it. Once these three screws are removed you should be able to pull down on this portion of trim under your instrument cluster. When you do this it may cause trim around your instrument cluster to loosen that you can just pop back into place with your hand. You won't need to pull down to far on this trim piece as there are still some screws holding the bottom. You should be able to pull it down far enough to see the flasher units behind and just to the left of the cigarette lighter. There are two flasher units and I found that the one on the right is for the turn signals.On the left the other is for the hazard flashers. It may be a hand scraping experience to replace the flasher but it beats paying someone to do it for you. They are easy to recognize because the are silver and round metallic plug ins. The flasher unit on the left is for the emergency flashers and the one on the right is for turn signals. You can place the emergency flasher unit into the slot the turn signal unit belongs until you get a replacement. These flasher units are pretty cheap.

SOURCE: 1997 Chevy Tahoe both turn signals stopped working

Sounds like the flasher unit to me. Normally the emergency flasher and turn signal are separate.