2000 ford expedition brake lights dont work sometimes , when you pump the brakes hard they come on

I don't I have ever replaced an ABS fuse. Most likely you have a bad wheel sensor. Have the codes read. You will still have brakes until you get it repaired. Just not anti lock brakes. Meaning that the wheels will stop turning if you hit the brakes hard enough.

does it have a trailer connector installed by uhaul or anything if it does possible corrosion in wires or a bad ground at rear of vehicle

Did you check the power is coming to brake light at the socket?

I had this same problem (brake lights won't come on when pushing on brake) I found that the brake light sending unit had come out of adjustment.Look under the dash by the brake pedal.There is a plastic threaded unit that needs to be pushed back towards the brake pedal lever.Careful not to push it to far or the brake lights will stay on. Hope this helps

Have you checked the brake switch itself? Sometimes they twist off when working under the dashboard. if you have a tester or voltmeter, try checking for power on the green or green with red wire at the brake switch plug. If voltage is present when the brake is depressed, you might have a broken wire going to the back lights somewhere along the harness. Let me know.

the reason the shifter is stuck in park is because the brake lights dont work.check ALL fuses if fuses ok then check brake light switch

Check the fuse for the brake lights, it may have the system where you can only select if the brake pedal is depressed. First get someone to check if the brake lights work, if they dont, then check the fuse or connections to the pedal switch.
Hope this helps

I would suggest changing the fuse anyway....sometimes they look good, but are faulty. Had the same problem with my vehicle....oh and check your brake lights...i drove around for 3 days and nights with no brake lights.....

check the connector at the brake switch located on the brake pedal lever arm if it is ok it is most likely a faulty switch

I have the same problem and after a year of trouble shooting I have figured out that my third brake light the one on the top of the tail gate, the lens cover has a couple of cracks and water seeps in and my brake lights work, when it dries out they stop working because the water bridges the power to all the plugs.

So in order to fix this problem I ordered a new 3rd brake light from the ford dealer for about $180.00 as I was not able to find one at a junk yard or online, now my brake work. Also the new light comes with new plugs, lens cover and base so I guess it's worth it.

Check yours for a crack then uninstall it so you could see the melted plugs.

Good luck.