89 ranger

I’ve got an 89 2.9 with auto locking hubs. I have no 4 wheel lights other than to light up the two push buttons. When I press them, nothing happens at all. No relays clicking or anything that I can tell I pushed the test light on the 4x4cm and it just light up for 30 seconds or so the. Went off...

Hey guys, I need some help. Engine runs great for about 15 miles. At highway speeds engine cuts off just like someone flipped a switch. After being towed home 3 separate times, I'm starting to think it may be the DIS module overheating. After fiddling with wires, connectors and disconnecting...