My buddy has an 02 Jeep Grand Cherokee, and his left turn signal does what it wants.. It works when it wants to. Usually it doesn't. Sometimes, if he leaves his 4 ways on for about 5 minutes, then tries his turn signal it will work for a little bit. But always goes back out. I took the switch off, and I traced all the wires I could, and they all look good and connected to everything, but I was just wondering if the switch could be bad? That's my only guess at this point. All the bulbs are working, the fuse is good, and like I said, the 4 ways work fine. It's only the left turn signal. Any other ideas? Any & all help is appreciated... Thanks.