Could be a worn universal joint. The year, make and model info would help.
Most likely your transmission needs replaced.
If this is an automatic transmission, more than likely the transmission is on it's way to the junkyard. Usually failing transmissions lose reverse first, then the higher forward gears - last will be the lowest forward gears.
The A4LD transmission is the weakest part of the 91-94 explorer. It is likely that your transmission has failed.
Replace the speakers. Adjust the Fade/Balance and listen to find which speaker is popping. The popping noise is most likely from a broken cone in the speaker
The popping sound is most likely caused by a problem with the suspension. The front strut spring is the most likely culprit.
If the fuse was "blown" then that would indicate a short circuit. If the fuse wasn't blown that would indicate an open circuit.The most likely cause in either event is a broken wire. The 2nd most likely reason is the switch on the column that engages when the lever is in the reverse position.I would start by trying to trace the wire starting at the bulb and working forward. You'll likely find the wire is broken very near where it goes into the mount.
The car is not actually in reverse, it only looks so because the linkage between your transmission and the shift lever is broken or stretched. Most likely the tranmission is fine, but the linkage will need to be looked at or replaced.
Have the vehicle placed on an engin analyzer. It will verify that either the ECT ECU or the reverse solenoid is malfunctioning. The results will likely indicate a replacement of the solenoid ius required.
That you need a transmission shop. It is possible but unlikely that your linkage needs adjustment; more likely is that you need a new transmission.
no not really it's most likely saying looking forward seeing you or to see you
Manual or Automatic?? In either case, most likely the linkage. Manual, might be the syncronizer gear or low on lubricant.
Most likely you have a bad "universal joint" or "U-joint". There are two: one on each end of the main driveshaft It could be either one that is causing the symptoms, but if that is the fix, you might as well change both since it is a relatively cheap fix. Don't ignore it too long because as it gets worse, the driveshaft can drop to the ground and you will be stuck. It could also be the "rear end" itself which is much more money to replace.