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Re: rear wiper hangs loose, wont wipe
Sounds like the spring has broken in the wiper arm. If you pull the cover off of the base of the wiper arm there will be a screw. Remove the screw and pull straight out on the base of the arm. That will release it from the actuator. You should be able to pick one up at a parts house for about $20 to $40 dollars or you could shop a salvage yard for about $10. Hope this helps. Good luck. Please re-post with updates. Thanks cj2176.
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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.
Open the rear window and push the arm past its usual position against the window. It may restore the the tension. However, You likely need a new wiper arm, you could also try lubricating the pivot point.
Since changing the relay once fixed it, perhaps the problem is with the relay socket. Have you tried jiggling the relay to see if they will stop wiping? Perhaps there is a short behind or inside the socket.
Looks like the problem is in the wiper mechanism switch.
Located in the base of your wiper, wires are connected in that area, one contact point might have fused itself to return contact point. Check on that and let us know.
You could check also the rear wiper switch, the contact inside might have fused with "on" contact point.
Hope that stops that reckless wiper!
Thanks for using Fixya!
I have the same problem with my 2000 chevy blazer as skornec had posted. I kinda already figured the hose or spray nozzle was plugged. But the problem with checking those items is that I don't know where the hose is located to the back wiper. And the only thing that could be I see that could be the spray nozzle doesn't even have holes that washer fluid could spray from. So basically I just would LOVE if someone could please inform this lame brain of where to find the spray nozzle on the rear window and where in the interior of my blazer does the washer hose run.
Check for a bent arm, pos. was bent by scruber.
Or was it on during the wash? it may have been stuck at one point and the wiper motor still turning, and is now out of time. Arm position to motor shaft position.