Volvo Turn Signal Light Problem

Question

My dad has an old Volvo V70 from 2001.

One of the blinkers (that yellow light that you turn on if you go left or right) is not working properly. Sometimes it works, sometimes it doesn't. We opened the hood and touched some wires etc etc we came to the conclusion that once we tighten the light it starts blinking and when we let go of it, it stops working. Or if we loosen the light as much as possible it starts blinking and once changed it stops.

So I'm wondering what could be the issue here and how can we fix it?

Answer 1

Almost certainly a poor connection within the bulb holder. You might be able to clean up the connections within the holder with a fine bit of sandpaper or "wet and dry", then adjust them with a tiny screwdriver to improve the contact, but it's probably easier to get a new unit...