Turn signals stopped working

There is a flasher mounted by the steering column, but under the dash. Lower the under dash panel and look up in their. It's round and silver and has yellow stripes around it. I would just go buy one and you'll know what it looks like. Replace it that should fix your problem. We can start here.

Hi:
If they are not working at all, it could be a fuse. Check fuse 3 in the under hood fuse box. See pic 1. If they are turning on but not flashing, replace the flasher relay (see pic 2 for location). If there is power and the flasher is good, then suspect it is the switch.

Here are a few links for testing the fuses and general electrical components.

https://www.2carpros.com/articles/how-a-car-fuse-works

https://www.2carpros.com/articles/how-to-check-a-car-fuse

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

______________________________________________

If you determine it is the switch, here are the directions for replacement.
______________________________________________

1987 Dodge or Ram Truck B350 1 Ton Van V8-360 5.9L VIN 1
Procedures
Vehicle Sensors and Switches Sensors and Switches - Lighting and Horns Turn Signal Switch Service and Repair Procedures
PROCEDURES
Turn Signal/Hazard Warning Switch

Turn signal switch retainer removal. Standard columns

Pic 3

Lock plate retaining ring removal

pic 4

Turn signal switch removal. Tilt columns

pic 5

Taping turn signal connector and wires

pic 6

1. Disconnect battery ground cable.
2. On 1983-87 models, remove lower bezel from instrument panel.
3. On all models, remove horn sounder and steering wheel. Refer to ``Horn Sounder & Steering Wheel, Replace'' procedure.
4. On standard columns proceed as follows:
a. Remove turn signal lever to switch attaching screw, then the lever. If equipped with speed control, allow lever to hang free.
b. Remove switch retainer attaching screws, then the retainer.
5. On tilt columns, proceed as follows:
a. Remove plastic cover from lock plate, if equipped.
b. Depress lock plate using tool C-4156 or equivalent, then pry retaining ring out of groove using screwdriver. The full load of the cancelling cam spring should not be relieved. If full load is relieved, retaining ring will turn too easily, making removal more difficult.
c. Remove lock plate, cancelling cam and spring, then place turn signal lever in right turn position.
d. Remove turn signal lever to switch attaching screw, then the lever.If equipped with speed control, allow lever to hang free.
e. Remove hazard warning switch knob attaching screw, then the turn signal switch attaching screws.
6. On tilt columns, position steering wheel in midpoint position.
7. On models equipped with column shift, place selector lever in first or third gear position.
8. On all models, remove wire cover attaching clips, then the cover if equipped.
9. Disconnect turn signal electrical connector. Wrap a piece of tape around the connector and wire to prevent snagging during switch removal.
10. Remove turn signal/hazard warning switch assembly by pulling switch up from column while straightening and guiding wires up through column opening.
11. Reverse procedure to install.

______________________________________

Let me know if this helps or if you have other questions.

Take care,
Joe