Tip & How-To about Chevrolet Tahoe
My 2005 tahoe rear wiper was inop. The symptom was a pulsating buzz coming from the wiper motor, but no wiping action. I mistakenly bought a new wiper motor, which was not the cause. It was a bad ground, so instead of hunting the bad ground, I just added another grounding wire to the motor. Maybe my experience can help you. Make sure ignition is off and wiper is off. (As an added safety precaution disconnect the negative battery cable to prevent unexpected wiper action). To get access to wiper motor, open rear window glass to remove upper window trim surround. On either side of the window latch there are two black flat plastic "buttons". Release these by pushing from behind with a flat blade screw driver to pop out the center pin. With the pin extended the whole button can be pulled out. Open the tail gate and gently pry under the upper window trim to release clips from underneath. Remove upper window trim. Now to remove lower tailgate panel, remove bolt holding the pull strap. remove pull strap. As before gently pry lower panel to release clips from underneath. When all are loose, lift panel vertically to remove, by releasing the two "fingers" that fit into slots. Now that the motor is exposed, cut a short length of insulated stranded wire (like lamp wire) and crimp-on some terminal ends(just the stripped bare wire ends will also work). Attach from under a wiper motor frame mounting bolt (do not use either of the rubber insulated bolts) to under a mounting bolt on the window glass latch assy. Or you can also select any motor grounding point to any vehicle chassis grounding point as desired. Op test the wiper. Note: The window glass and tailgate will have to be closed to test. Hopefully it works properly. Put everything back in reverse order. Remember to slide fingers of lower panel into their slots before pushing clips secure. Also after remounting upper glass trim, fully insert the two plastic latch buttons with center pins extended, and then push in center pins.
Posted by John M... on
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