Rear Wiper Blade Problems

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Rear Wiper Blade Problems

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Blazer >> Mechanical & Maintenance >> General Tech Help >> 2nd Gen S-series (1995-2005) Tech >> Rear Wiper Blade Problems

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Rear Wiper Blade Problems - 10/17/2007 8:32:24 AM

zerokarma

Posts: 3
Joined: 10/10/2007
Status: offline

I recently bought a 1997 Chevy Blazer LT, everything on it is pretty much mint condition except the Wiper blade which doesn't seem to be working properly. It does move a little but usually gets stuck at some point on the window. If you help it a long a bit while its on it trys to go back and forth on the window but usually just stops or gets stuck at some point.

Is it likely the motor that is bad or something else?

Post #: 1

RE: Rear Wiper Blade Problems - 10/17/2007 8:55:53 AM

BigGreenMonster

Posts: 401
Joined: 8/11/2006
Status: offline

quote:

Is it likely the motor that is bad or something else?

Unless there is something you can see physically that is hanging the blade up while it is in motion, my money is on the motor.

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Don't tase me, bro!!!!!!!!

94 Blazer Tahoe w/ Vortec CPI- Flowmaster 40 series
'97 30th Anniversary Mercury Cougar XR-7
4.6 Modular V8 (no major modifications)

(in reply to zerokarma)

Post #: 2

RE: Rear Wiper Blade Problems - 10/17/2007 9:54:12 AM

junkmonkey

Posts: 174
Joined: 11/30/2006
From: Rochester, NY
Status: offline

Do you hear any clicking sounds? You'd know it if it was. It is possible that the shaft that passes through a sleeve from inside of the vehicle to the outside of the vehicle is hanging up (corrosion, rust). You can take the gear box apart and clean the shaft, relube it and re-assemble it. Not too bad of a job. The motor, too, could be flaky, of course. That's easy enough to test though by removing it and putting power to the contacts. It'll run or not. Good Luck.

Another thing: The plastic gears could be stripped inside the gear box (if it doesn't click).

< Message edited by junkmonkey -- 10/17/2007 9:55:33 AM >

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1996 LT Blazer 4x4 - 112,000 miles and still going
Old enough to know better, but still willing to try!

(in reply to BigGreenMonster)

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RE: Rear Wiper Blade Problems - 10/17/2007 11:42:31 AM

UrbanOffRoader

Posts: 20
Joined: 11/7/2006
Status: offline

I have this same issue...

The shaft tends to rust and cause it to stick, which in turn causes the crappy plastic gear to strip a tooth or two.

Pulling it apart and re-lubing it will help if the gear isn't stripped. If the gear is stripped, you will need a new motor. I haven't seen the $0.27 plastic gear for sale on it's own.

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97 Blazer 4.3 4x4 LT with a mind of it's own

(in reply to junkmonkey)

Post #: 4

RE: Rear Wiper Blade Problems - 10/18/2007 12:44:50 PM

blzR

Posts: 141
Joined: 2/8/2007
Status: offline

Just do what i did,after my wiper "tried" to do it's wiping duties,and stopped midway..replace the entire unit($80)
- lower tailgate,remove 2edge phillipe screws,remove both handle screws, Gentlypull panel off there clips
-remove the 11/12 7mm screws,take off wiper assembly,unbolt 3 10mm wiper housing and assemble in reverse.

(in reply to UrbanOffRoader)

Post #: 5