Rear Wiper Issues

Slow_S10 · 02-20-2009, 11:38 AM

Ok I have searched and all I can find are old ass posts from people who's rear wipers don't work... Well I don't have that problem...

The rear wiper on my wife's 98 Bravada likes to turn on completely at random. Sometimes it will go off when I am driving or if I am just parked and pushing other switches and I just noticed today that it will even do it when the truck is off and nobody is around it. But it also still works with the dash switch like normal.

I have no idea where to start with this issue. I would like to keep it but I am seriously thinking about just removing it all together. My wife keeps saying its just her trucks tail, and it's wagging it because it's happy.

right...

But any suggestions or help would be greatly appreciated.

87c10slammer · 02-20-2009, 02:16 PM

just unplug it untill you can get it shaved.. there completly pointless anyways.. but the problem could be in the switch although i dont know how it would turn on when the truck is off since there isnt any power going to it when the key is in the off position

Slow_S10 · 02-20-2009, 02:23 PM

Quote: Originally Posted by 87c10slammer

just unplug it untill you can get it shaved.. there completly pointless anyways.. but the problem could be in the switch although i dont know how it would turn on when the truck is off since there isnt any power going to it when the key is in the off position

Like I was saying before I would really prefer to keep it, but I have no idea what could cause it to act like this. It has actually come in handy a few times, but I could live without it if there was no other choice.

Oh and I have aonther dash switch that I am going to try installing to see if that makes a diffrence, but I honestly doubt that it will. It seriously seems like something weird is goign on with it... Maybe the relay is shorting out or something.

ZQ8 Blazer · 02-20-2009, 02:49 PM

I unplugged mine from the switch and from the fuse box. All they do is smooth the back glass out in that area so when dust or rain gets back there it just surrounds the outer area of the smooth glass, you don't need it.

Slow_S10 · 02-20-2009, 03:04 PM

Thanks... I guess.

ZQ8 Blazer · 02-20-2009, 03:06 PM

Hey.....................your welcome.....I guess.

Slow_S10 · 02-20-2009, 03:54 PM

Just sayin... I'm looking for help on fixing it not advice on unplugging it.

Like I have said a few times now. I would really like to get it to work properly because it has come in handy on ocasion. If I just didn't need it at all, I would have unplugged it when it first started giving me issues.

ZQ8 Blazer · 02-20-2009, 03:55 PM

Try waxing the back window. I do that on my front and back ones, makes the water run right off it and the dust not accumulate as quickly

Slow_S10 · 02-20-2009, 03:58 PM

Thank you, that is a good idea if I can not get it fixed. As of right now it still works it's just weird to walk up to the truck with the rear wiper going for no apparent reason... Maybe it is happy to see me... I don't know.

95blazerks · 02-20-2009, 07:11 PM

it could be a loose wire did u check to make sure all connections where good on the motor if not there id say check the switch next

customchevys · 02-20-2009, 07:13 PM

I see alot of blazers and such having that problem with the rear wiper, and just seen them with no wiper, they kind of look like a junk wiper to me.

Zeeke98 · 02-20-2009, 11:28 PM

I don't get how it is running with the truck off. The power should be cut once it is turned off. I have issues with mine randomly sticking in the middle of a wipe cycle straight up and down. I haven't had a chance to pull the panel on the inside and see if it's corroded or anything.

For those that think it's useless, apparently don't drive in much heavy rain or in winter. I use mine a lot.

87c10slammer · 02-21-2009, 05:58 PM

i just dont look out the back window much... i use the side mirrors more then the middle... but i would deifinly pull the back panel and check it out back there... i think there is always power running to it but the switch is on the ground side... so if the ground wire is chaffed and it makes contact then thats where the waggig tail comes in... does it do it if you open and close the hatch? i would think you would be better off going to the junkyard and pulling a motor asembly this was if its not the prolem your not out that much money... 10 buks at most... electrical problems are a pain to trouble shoot over the internet.. the only thing you can do is tear it apart and se whats what for yourself

ZQ8 Blazer · 02-21-2009, 09:35 PM

oh yeah another good way to fix this would be to do what I said above and also take the back glass completely out, this way you'd always have a clear view of whats behind you.

NotaDime · 02-22-2009, 08:42 PM

if it turns on all by itself it has to be the switch.

Zeeke98 · 02-22-2009, 08:51 PM

Quote: Originally Posted by NotaDime

if it turns on all by itself it has to be the switch.

Not if it's a switched ground. A cut ground wire to the switch that's shorting will cause it to come on. I can't believe it would be a switched ground though. I thought only British cars used that type of switching.

87c10slammer · 02-22-2009, 11:03 PM

nah gm uses this design as well... most of the switched options are switched grounds as you put it... it is safer to have a ground wire through the switch then it is a powered wire.. less chance of it going bad and starting a fire...

02-20-2009, 11:38 AM	#1
Slow_S10 I Type Slow Too... Age: 27 Join Date: Jan 2007 Posts: 1,354 Location: Chesapeake, VA User is: OffLine	Rear Wiper Issues Ok I have searched and all I can find are old ass posts from people who's rear wipers don't work... Well I don't have that problem... The rear wiper on my wife's 98 Bravada likes to turn on completely at random. Sometimes it will go off when I am driving or if I am just parked and pushing other switches and I just noticed today that it will even do it when the truck is off and nobody is around it. But it also still works with the dash switch like normal. I have no idea where to start with this issue. I would like to keep it but I am seriously thinking about just removing it all together. My wife keeps saying its just her trucks tail, and it's wagging it because it's happy. right... But any suggestions or help would be greatly appreciated.
	[Reply w/Quote]

02-20-2009, 02:16 PM	#2
87c10slammer Registered User Age: 25 Join Date: Jul 2008 Posts: 391 Location: User is: OffLine	Re: Rear Wiper Issues just unplug it untill you can get it shaved.. there completly pointless anyways.. but the problem could be in the switch although i dont know how it would turn on when the truck is off since there isnt any power going to it when the key is in the off position
	[Reply w/Quote]

02-20-2009, 02:23 PM	#3
Slow_S10 I Type Slow Too... Age: 27 Join Date: Jan 2007 Posts: 1,354 Location: Chesapeake, VA User is: OffLine	Re: Rear Wiper Issues Quote: Originally Posted by 87c10slammer just unplug it untill you can get it shaved.. there completly pointless anyways.. but the problem could be in the switch although i dont know how it would turn on when the truck is off since there isnt any power going to it when the key is in the off position Like I was saying before I would really prefer to keep it, but I have no idea what could cause it to act like this. It has actually come in handy a few times, but I could live without it if there was no other choice. Oh and I have aonther dash switch that I am going to try installing to see if that makes a diffrence, but I honestly doubt that it will. It seriously seems like something weird is goign on with it... Maybe the relay is shorting out or something.
	[Reply w/Quote]

02-20-2009, 02:49 PM	#4
ZQ8 Blazer ZQ8 Blazer Age: 26 Join Date: Jul 2004 Posts: 8,723 Location: Western, Ky User is: OffLine	Re: Rear Wiper Issues I unplugged mine from the switch and from the fuse box. All they do is smooth the back glass out in that area so when dust or rain gets back there it just surrounds the outer area of the smooth glass, you don't need it.
	[Reply w/Quote]

02-20-2009, 03:04 PM	#5
Slow_S10 I Type Slow Too... Age: 27 Join Date: Jan 2007 Posts: 1,354 Location: Chesapeake, VA User is: OffLine	Re: Rear Wiper Issues Thanks... I guess.
	[Reply w/Quote]

02-20-2009, 03:06 PM	#6
ZQ8 Blazer ZQ8 Blazer Age: 26 Join Date: Jul 2004 Posts: 8,723 Location: Western, Ky User is: OffLine	Re: Rear Wiper Issues Hey.....................your welcome.....I guess.
	[Reply w/Quote]

02-20-2009, 03:54 PM	#7
Slow_S10 I Type Slow Too... Age: 27 Join Date: Jan 2007 Posts: 1,354 Location: Chesapeake, VA User is: OffLine	Re: Rear Wiper Issues Just sayin... I'm looking for help on fixing it not advice on unplugging it. Like I have said a few times now. I would really like to get it to work properly because it has come in handy on ocasion. If I just didn't need it at all, I would have unplugged it when it first started giving me issues.
	[Reply w/Quote]

02-20-2009, 03:55 PM	#8
ZQ8 Blazer ZQ8 Blazer Age: 26 Join Date: Jul 2004 Posts: 8,723 Location: Western, Ky User is: OffLine	Re: Rear Wiper Issues Try waxing the back window. I do that on my front and back ones, makes the water run right off it and the dust not accumulate as quickly
	[Reply w/Quote]

02-20-2009, 03:58 PM	#9
Slow_S10 I Type Slow Too... Age: 27 Join Date: Jan 2007 Posts: 1,354 Location: Chesapeake, VA User is: OffLine	Re: Rear Wiper Issues Thank you, that is a good idea if I can not get it fixed. As of right now it still works it's just weird to walk up to the truck with the rear wiper going for no apparent reason... Maybe it is happy to see me... I don't know.
	[Reply w/Quote]

02-20-2009, 07:11 PM	#10
95blazerks Registered User Age: 26 Join Date: Jul 2007 Posts: 45 Location: User is: OffLine	Re: Rear Wiper Issues it could be a loose wire did u check to make sure all connections where good on the motor if not there id say check the switch next
	[Reply w/Quote]

02-20-2009, 07:13 PM	#11
customchevys Registered User Join Date: Dec 2007 Posts: 578 Location: Ohio User is: OffLine	Re: Rear Wiper Issues I see alot of blazers and such having that problem with the rear wiper, and just seen them with no wiper, they kind of look like a junk wiper to me.
	[Reply w/Quote]

02-20-2009, 11:28 PM	#12
Zeeke98 Registered User Age: 35 Join Date: Aug 2003 Posts: 3,024 Location: Michigan User is: OffLine	Re: Rear Wiper Issues I don't get how it is running with the truck off. The power should be cut once it is turned off. I have issues with mine randomly sticking in the middle of a wipe cycle straight up and down. I haven't had a chance to pull the panel on the inside and see if it's corroded or anything. For those that think it's useless, apparently don't drive in much heavy rain or in winter. I use mine a lot.
	[Reply w/Quote]

02-21-2009, 05:58 PM	#13
87c10slammer Registered User Age: 25 Join Date: Jul 2008 Posts: 391 Location: User is: OffLine	Re: Rear Wiper Issues i just dont look out the back window much... i use the side mirrors more then the middle... but i would deifinly pull the back panel and check it out back there... i think there is always power running to it but the switch is on the ground side... so if the ground wire is chaffed and it makes contact then thats where the waggig tail comes in... does it do it if you open and close the hatch? i would think you would be better off going to the junkyard and pulling a motor asembly this was if its not the prolem your not out that much money... 10 buks at most... electrical problems are a pain to trouble shoot over the internet.. the only thing you can do is tear it apart and se whats what for yourself
	[Reply w/Quote]

02-21-2009, 09:35 PM	#14
ZQ8 Blazer ZQ8 Blazer Age: 26 Join Date: Jul 2004 Posts: 8,723 Location: Western, Ky User is: OffLine	Re: Rear Wiper Issues oh yeah another good way to fix this would be to do what I said above and also take the back glass completely out, this way you'd always have a clear view of whats behind you.
	[Reply w/Quote]

02-22-2009, 08:42 PM	#15
NotaDime UN-BANNED B!TCHES!!!!! Join Date: Jan 2007 Posts: 5,335 Location: Home. User is: OffLine	Re: Rear Wiper Issues if it turns on all by itself it has to be the switch.
	[Reply w/Quote]

02-22-2009, 08:51 PM	#16
Zeeke98 Registered User Age: 35 Join Date: Aug 2003 Posts: 3,024 Location: Michigan User is: OffLine	Re: Rear Wiper Issues Quote: Originally Posted by NotaDime if it turns on all by itself it has to be the switch. Not if it's a switched ground. A cut ground wire to the switch that's shorting will cause it to come on. I can't believe it would be a switched ground though. I thought only British cars used that type of switching.
	[Reply w/Quote]

02-22-2009, 11:03 PM	#17
87c10slammer Registered User Age: 25 Join Date: Jul 2008 Posts: 391 Location: User is: OffLine	Re: Rear Wiper Issues nah gm uses this design as well... most of the switched options are switched grounds as you put it... it is safer to have a ground wire through the switch then it is a powered wire.. less chance of it going bad and starting a fire...
	[Reply w/Quote]