Rick's Free Auto Repair Advice

Rear Wiper doesn’t work — Expedition Navigator

Rear Wiper doesn’t work

Owners of 2003-07 Ford Expeditions and Lincoln Navigators may experience a dead battery along with a balky rear wiper. The problem is covered by TSB #07-10-13 and can be diagnosed with the following procedure:

Rear Wiper doesn’t work — Expedition Navigator

If the rear wiper doesn’t work on your Explorer or Navigator, pop the rear window open to make sure the wiper mechanism is disengaged from the motor drive plate. Next, open the beauty cover over the wiper arm attaching nut. Then, connect a dial torque wrench to the nut and rotate the wiper arm across the entire length of travel, keeping the blade touching the glass the entire time. Keep the window open during this test.

The torque measurement must not exceed 49 INCH pounds. If you discover that it is greater than this amount, replace the rear window striker/wiper pivot shaft assembly.

Corrosion on the wiper pivot shaft assembly causes excess torque and prevents the wiper arm from returning to the park position. The wiper system continues to attempt a park maneuver periodically and those continued attempts drain the battery.

Owners of 2003-07 Ford Expeditions and Lincoln Navigators may experience a dead battery along with a balky rear wiper. The problem is covered by TSB #07-10-13 and can be diagnosed with the following procedure:

Pop the rear window open to make sure the wiper mechanism is disengaged from the motor drive plate. Next, open the beauty cover over the wiper arm attaching nut. Then, connect a dial torque wrench to the nut and rotate the wiper arm across the entire length of travel, keeping the blade touching the glass the entire time. Keep the window open during this test.

The torque measurement must not exceed 49 INCH pounds. If you discover that it is greater than this amount, replace the rear window striker/wiper pivot shaft assembly.

Corrosion on the wiper pivot shaft assembly causes excess torque and prevents the wiper arm from returning to the park position. The wiper system continues to attempt a park maneuver periodically and those continued attempts drain the battery.

 

© 2012 Rick Muscoplat

Posted on by Rick Muscoplat


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