the signal lights on my niece's 1990 sundance quit working,we have replaced every bulb and the flasher but stiil they don't blink,the four ways work and all lights work on signals when you move lever up an down or turn on lights they just won't blink even tried diff flasher thinking this one might be faulty Any ideas????

 

even a remote possibilty idea would be appreciated

 

Electrical troubleshooting isn't my strong suit, but electrical problems are often due to a faulty ground, so I would ensure that all the bulb sockets are free of rust/corrosion/crud and that they provide a good ground (remove bulb and meter from the side of the socket to bare metal on the frame/chasis).

 

Is it possible you have 2 flasher relays? 1 for 4 way and 1 for turns?

 

Don't think its a ground prob both sides quit at the same time,2 flashers ? where would second flashed be located? I looked and couldn't find

 

Go to:
http://www.autozone.com/az/cds/en_us/0900823d/80/08/db/dd/0900823d8008dbdd/repairInfoPages.htm
There are two flasher relays (according to the Autozone site above diagram) for the turn signals: one for 4-ways and one for the turn signals.
Good luck!