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Windshield wipers

IHateMyJob2004

IHateMyJob2004

Lifer
Why don't window wipers finish last wipe when car is turned off?

They stay in the position they were in when the car was turned off.

Widnows still work, radio stays on. Widnshield wipers get stuck in strange position.
 
Because wipers are generally not wired into the accessory circuit like the windows and the radio since there's no reason why they can't be left mid-swipe with the car off.

ZV
 
Mine park themselves when I cut power. They also turn off if they're frozen in place in the winter soothe motor doesn't burn out
 
LTC8K6 said:
Mine flip out to change them, so it's easy to do when they are parked.
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I can change mine when in the park position.

I haven't had a car in years that had the wipers park below the hood, those would have to be changed with the arms on the windshield. Are there any cars that park the wipers under the hood anymore? In the 70's there were a number like that.
 
dawp said:
Zenmervolt said:
Because wipers are generally not wired into the accessory circuit like the windows and the radio since there's no reason why they can't be left mid-swipe with the car off.

ZV
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except during the winter.
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That is the best time to leave them up; Place a large towel under them to keep windshield clean of any accumulation
 
dawp said:
except during the winter.
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Wipers ice up whether parked or mid-swipe. Though I can see not wanting them to try to park when they're iced up and you start the car.

Still, I've literally never shut off the car with my wipers still on. It's automatic to hit the wiper stalk before switching off the ignition.

ZV
 
Forget that. I want to know why they start wiping before water starts spraying, causing dry dirt to be scraped across the surface of your windshield leaving scratches.
 
Throckmorton said:
Forget that. I want to know why they start wiping before water starts spraying, causing dry dirt to be scraped across the surface of your windshield leaving scratches.
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Mine don't do that. I have rain sensing wipers, so they don't move until enough washer fluid hits the windshield to trigger them.
 
Zenmervolt said:
Wipers ice up whether parked or mid-swipe. Though I can see not wanting them to try to park when they're iced up and you start the car.

Still, I've literally never shut off the car with my wipers still on. It's automatic to hit the wiper stalk before switching off the ignition.

ZV
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I think that's the key the OP is missing it doesn't matter if the car parks them or left it mid swipe. If it freezes up and you left the wipers on its still going to try to move the wipers while frozen. Guess the one advantage is that it gives you a chance before starting the car to turn the wipers off if you forgot and they are already parked. If they stay mid swipe your SOL no matter what.

Better to turn them off as your parking before you turn off the ignition.
 
Topweasel said:
I think that's the key the OP is missing it doesn't matter if the car parks them or left it mid swipe. If it freezes up and you left the wipers on its still going to try to move the wipers while frozen. Guess the one advantage is that it gives you a chance before starting the car to turn the wipers off if you forgot and they are already parked. If they stay mid swipe your SOL no matter what.

Better to turn them off as your parking before you turn off the ignition.
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And that would be exactly what I already said.

ZV
 
LTC8K6 said:
EagleKeeper said:
dawp said:
Zenmervolt said:
Because wipers are generally not wired into the accessory circuit like the windows and the radio since there's no reason why they can't be left mid-swipe with the car off.

ZV
Click to expand...

except during the winter.
Click to expand...

That is the best time to leave them up; Place a large towel under them to keep windshield clean of any accumulation
Click to expand...

Tend to get ice here. That would be a disaster under 1/4" of ice.
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Ice never gets to windshield. When I travel to winter climates, I take a hand towel of hotel and wrap the blades. Then a large bath towel on the glass.

Come AM, peel off towels, toss in bathtub, get my coffee and head out. Vehicle us warm, windshield clear and wipers clean.

Disclaimer:
Vehicle sits in an attached garage with vented warm air when home in Colorado winter
 
Throckmorton said:
Forget that. I want to know why they start wiping before water starts spraying, causing dry dirt to be scraped across the surface of your windshield leaving scratches.
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Washer and wiper motors are on same power circuit. Delay is in building pressure in fluid lines.
 
LTC8K6 said:
Mine don't do that. I have rain sensing wipers, so they don't move until enough washer fluid hits the windshield to trigger them.
Click to expand...

Well that sounds like a stupid design. It links a standard function to a luxury item. If the rain sensing function goes out, I doubt it's smart enough to detect it and change its behavior. You'd have to fumble with a two-step operation of triggering the fluid and turning on the wipers.
 
Topweasel said:
No you implied that. There is a difference.
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No, when I said, "I can see not wanting them to try to park when they're iced up and you start the car," I said it. That's not implying, that's stating outright that the issue is the motor automatically trying to park the wipers as soon as you start the car.

ZV
 
Zenmervolt said:
No, when I said, "I can see not wanting them to try to park when they're iced up and you start the car," I said it. That's not implying, that's stating outright that the issue is the motor automatically trying to park the wipers as soon as you start the car.

ZV
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Ok then we are saying something completely different. I said it doesn't really matter if its parked or not because if you left the wipers on your in the same boat (with the rare exception of someone realizing that they left the wipers on prior to starting the car). I thought you were implying that it doesn't make a difference either way, so I expanded and said it didn't. But yes if you want to take it the way you said it, then you are right on your last post, but completely wrong on your first one. I didn't parrot you either way.
 
DominionSeraph said:
Well that sounds like a stupid design. It links a standard function to a luxury item. If the rain sensing function goes out, I doubt it's smart enough to detect it and change its behavior. You'd have to fumble with a two-step operation of triggering the fluid and turning on the wipers.
Click to expand...

I can turn the rain-sense off in such a case, and then they revert to regular dumb operation. :biggrin:
 
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