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Any way to re-set the park position of windshield wipers?

demonte1997

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demonte1997 Enthusiast

demonte1997

Posted
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My 2002 SD does this weird thing where the wipers go down almost to the cowl and then they bump up about 4 inches to where they rest. To me, it seems like they aren't set in the right position so the parking mechanism is trying to keep them up higher at rest. I honestly don't know much about wiper systems and how they work, but curious if I could loosen the nuts and move the arms to a more ideal spot where the wipers would park in a more ideal spot.

gmtech4 Senior Enthusiast

gmtech4

Posted
Posted

My 2002 SD does this weird thing where the wipers go down almost to the cowl and then they bump up about 4 inches to where they rest. To me, it seems like they aren't set in the right position so the parking mechanism is trying to keep them up higher at rest. I honestly don't know much about wiper systems and how they work, but curious if I could loosen the nuts and move the arms to a more ideal spot where the wipers would park in a more ideal spot.

 

Yes , loose the arms and operate them normally , shut them off and replace the arms parralell to ground obviously .

 

Tighten the nuts good, I hit them with a 3/8 " impact , works great , but use hand tools and you'll be fine .... Drive truck lol

jhm Senior Enthusiast

jhm

Posted
Posted

Yes , loose the arms and operate them normally , shut them off and replace the arms parralell to ground obviously .

 

Tighten the nuts good, I hit them with a 3/8 " impact , works great , but use hand tools and you'll be fine .... Drive truck lol

Will that work if the reason they don't park correctly is due to a bad wiper module?

gmtech4 Senior Enthusiast

gmtech4

Posted
Posted

Will that work if the reason they don't park correctly is due to a bad wiper module?

You can try it or replace the wiper module, I never replaced 1 '02 wiper module

 

Lots of late 90s thou,,

 

Are you guessing the module is done or what?

jhm Senior Enthusiast

jhm

Posted
Posted

You can try it or replace the wiper module, I never replaced 1 '02 wiper module

 

Lots of late 90s thou,,

 

Are you guessing the module is done or what?

a few years ago in heavy downpour I had wipers on full speed. When I shut them off they park 2 inches above cowl plus they are not smooth anymore, a bit of pulsing. This truck is an '01.

demonte1997 Enthusiast

demonte1997

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A tech on another forum suggested that it might be a bad module. To me, that sounds like big $$$. I can at least try to loosen the nuts and re-park them. However, I just had my windshield replaced, so I assume they had already taken the wiper arms off and repositioned them. Thus hinting at bad module. :/

demonte1997 Enthusiast

demonte1997

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So looking up modules... a Dorman one is only $22/sh on Amazon so I'm just going with that. The job looks incredibly easy. Will report back but it seems pretty certain to be that part.

00Silverado4x4 Senior Enthusiast

00Silverado4x4

Posted
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There should be little hash marks on your windshield for where the wipers should be "parked". So I'd take the arms off, run the wipers, turn off and then reattach with the blade placed directly over those little marks.

jhm Senior Enthusiast

jhm

Posted
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There should be little hash marks on your windshield for where the wipers should be "parked". So I'd take the arms off, run the wipers, turn off and then reattach with the blade placed directly over those little marks.

If the board in the module is bad the wipers still wont park correctly next time they are used.

  • 2 weeks later...
demonte1997 Enthusiast

demonte1997

Posted
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As an update:

 

I swapped out the new module and no difference. The wipers still bump up when when they park. I made sure to place them at the hash marks.

 

To rule out my wiper placement, I tried running the system without wipers on the terminals and noticed that they will go through a full cycle and bump back up a little when they park. Maybe that's just the way they are supposed to be... Doesn't seem right tho. Frustrating..

jhm Senior Enthusiast

jhm

Posted
Posted

Possible you got a bad one. For $22 I would not be surprised that they do not test them before packaging. I know the original modules are known for having cold solder joint which sometimes cracks over time. I think that is what happened to mine.

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