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Old 09-07-2018, 10:02 PM   #1 (permalink)
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Default Rear Wiper Doesn’t Wipe Full Area / 2011 SX4 Hatchback

My rear window wiper is only partially wiping the window. The top portion of the arc isn’t being touched by the blade.

Replacing the wiper blade with a new one did not solve the problem. In fact, on close inspection, the outside last 3+ inches of the blade do not even touch the window.

I was told by my mechanic that I needed a new wiper arm, that the spring had weakened in the original arm. So, I replaced the arm with a brand new one.

A new blade and a new arm, but no change; I still have the same issue.

Any thoughts or suggestions would be appreciated.
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Old 09-07-2018, 10:09 PM   #2 (permalink)
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have a close look at the wiper arm you have fitted, some won't bend in the correct places to wipe rear windows, I had the same issue on another vehicle and ended up doing some "tweaking" to the arm and blade so it would flex in the correct places to give a full wipe
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Old 09-08-2018, 03:11 PM   #3 (permalink)
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Quote:
Originally Posted by 2013GV View Post
have a close look at the wiper arm you have fitted, some won't bend in the correct places to wipe rear windows, I had the same issue on another vehicle and ended up doing some "tweaking" to the arm and blade so it would flex in the correct places to give a full wipe
I appreciate your suggestion, but how do you suggest I “tweak” this wiper arm. It’s definitely not designed structurally to bend.
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Old 09-08-2018, 03:37 PM   #4 (permalink)
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the wiper arm i have on mine has several pivots along its length to allow it to "bend" to follow window curvature, it didn't require much force to take them to their limit of travel and "just a weebit more" to allow in my case, the last 2" of blade to touch the window. Mine was fine across most but left a patch about 1/3 across for about 4", not a biggie, but it annoyed me.

effectively I made the whole arm curve a bit more and loosened the pivots and blade clips so the blade stayed on the window. Check the blade can move freely in the holding clips on the arm as well, one of the ones on my new one was tight and that stopped the blade from being able to slide in the arm that little bit as the pivots move.
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Mitzi RVR 2.0 (not one of my better buys)
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"Dogs feel very strongly that they should always go with you in the car, in case the need should arise for them to bark violently at nothing right in your ear."
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Old 09-08-2018, 04:58 PM   #5 (permalink)
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Are you talking about the wiper arm (which moves the blade assembly in an arc) or the wiper blade structure that holds the rubber against the glass?

Most wiper arms have a single pivot point at the base where they attach to the gearbox splines to allow the arm to be moved for screen cleaning or blade replacement.

Older style wiper blades have a multi-pivoted structure that applies pressure to the rubber blade at several points to allow it to flex to follow the curve of the glass, newer style "beam" blades typically have a single pivot point where they attach to the arm but are built using a flexible curved frame that allows the blade to flex and apply pressure evenly across the length of the blade.

bsmy84 - are you using a genuine Suzuki blade? It's been my experience with rear screen wipers that many of the aftermarket blades do not flex enough to follow the curve of the glass.
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Old 09-08-2018, 06:54 PM   #6 (permalink)
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Quote:
Originally Posted by fordem View Post

bsmy84 - are you using a genuine Suzuki blade? It's been my experience with rear screen wipers that many of the aftermarket blades do not flex enough to follow the curve of the glass.
I have found this too, is definitely a possible cause but at $5 for an aftermarket vs $60 for a genuine on here, i'll "massage" an aftermarket one to fit.
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1971 V8 HG Holden with 383 stroker 9" torq lok and TH350 trans (the toy)
Mitzi RVR 2.0 (not one of my better buys)
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"Dogs feel very strongly that they should always go with you in the car, in case the need should arise for them to bark violently at nothing right in your ear."
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Old 09-08-2018, 07:29 PM   #7 (permalink)
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Back to the question - are you "massaging" the blade or the arm?
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Old 09-08-2018, 09:23 PM   #8 (permalink)
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Quote:
Originally Posted by fordem View Post
Back to the question - are you "massaging" the blade or the arm?
both, the main arm gets a bit of a bend to improve tension on the arm, and the arm that holds the blade gets curved to fit the screen better
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2015 5 dr Grand Vitara 2.4 (daily driver)
1971 V8 HG Holden with 383 stroker 9" torq lok and TH350 trans (the toy)
Mitzi RVR 2.0 (not one of my better buys)
the 2013 3 dr GV is now the off road only toy

"Dogs feel very strongly that they should always go with you in the car, in case the need should arise for them to bark violently at nothing right in your ear."
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Old 09-08-2018, 11:02 PM   #9 (permalink)
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Quote:
Originally Posted by fordem View Post
Are you talking about the wiper arm (which moves the blade assembly in an arc) or the wiper blade structure that holds the rubber against the glass?

Most wiper arms have a single pivot point at the base where they attach to the gearbox splines to allow the arm to be moved for screen cleaning or blade replacement.

Older style wiper blades have a multi-pivoted structure that applies pressure to the rubber blade at several points to allow it to flex to follow the curve of the glass, newer style "beam" blades typically have a single pivot point where they attach to the arm but are built using a flexible curved frame that allows the blade to flex and apply pressure evenly across the length of the blade.

bsmy84 - are you using a genuine Suzuki blade? It's been my experience with rear screen wipers that many of the aftermarket blades do not flex enough to follow the curve of the glass.
Thank you for the thoughtful and clear response.

In answer to your questions:

I believe my arm is the "beam" type. (I'm a little confused because I think you used "blade" where you meant to use "arm.") That's what the arm looks like on the underside. So, I'm almost positive that if one were to try to bend it, it would break before bending. It also has the newer single pivot point.

Now if you're talking about the wiper blade being a "beam" type, I'd have to take a close look at it to see if I understand what you mean. However, if memory serves me right it has a multi-pivoted structure to where in theory it should press down evenly across the surface of the glass, which it does not the last 3+ inches.

I believe the rear blade is a genuine Suzuki blade, but I can't be positive. I bought this SX4 used (one owner) from a CarFax dealer who claimed the whole rear wiper assembly was the original.

The new arm is aftermarket, but as far as I can tell it's identical to the original which I still have. The arms are pretty simple and straightforward, as you probably already know.

As for using a genuine Suzuki blade, I don't know where I'd find one of those. The former local Suzuki dealership is a dealer for another make or makes.
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Old 09-08-2018, 11:04 PM   #10 (permalink)
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Quote:
Originally Posted by fordem View Post
Back to the question - are you "massaging" the blade or the arm?
What does "massaging" a blade mean, exactly?
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