Dodge Repair: 2001 ram van 2500

Question
interior lights worked intermittently for a short period now wont work at all have checked all fuses cleaned grounds .cleaned battery terminals   any thoughts will be greatly appreciated

Answer
Hi Michael,
I suspect that the fuse for the interior lights has a subtle crack in its wire which means that it will sometimes work and then shut off spontaneously, only to recover when it cools down. I don't know which fuse socket it is located in, so if you can find that out then I would look very carefully at that fuse. It may also be called the ignition off draw fuse (IOD) as those lights function even though the van is not operating.
Roland