My 2006 Uplander has turn signals that will stop and start working at any given time. Bulbs are not burned out. Sockets have been replaced. At this time I'm wondering if it's a loose ground, and I'm in need of the ground location(s). I'm not a mechanic but just interested in trying to see if I can fix this problem. Any help is greatly appreciated.

 

Which side? Mine does the same thing drivers front. I think it's a poor connection somewhere. I haven't tackled it yet, but probably best to clean connections, maybe wiggle the wire to see if the voltage comes back in a certain position.

 

Drivers side mostly. I bought a service manual from ebay, then found out it was digital. The manual says the grounds are on the upper radiator support. Going to see if I can find those next.