Rear Wiper Motor continually burns out

[hellothere]

Hello, I've got a '99 explorer where I'm having issues with the rear wiper motor burning out a few weeks after getting it replaced. The motors have ranged from brand new to re-manufactured and through various manufacturers. All seem to have this issue and I can't seem to find a root cause. Has anyone run into this or have any advice for me? Getting really tired of this issue.

 

[pmonahan]

I would suspect something in the linkage or pivot is binding. Have you checked to insure that the linkage moves freely (first with the motor disconnected) and is well lubricated ?

Could also be a bad ground and the motor is not getting the current that it needs, but my suspicion is that the linkage, bushings, bearing, etc is binding.

 

[koda2000]

there is no linkage associated with the rear wiper motor. all the bearings and/or bushings are part of the motor. replace the motor and they are all replaced. i do concur with the possibility of a bad ground however.