84 yota dude

Hey everyone I have a question about my 1987 4runner. It is an sr5 with power everything and when you press the washer fluid spray button, the wipers do not turn on. The sprayer works fine but I could have sworn that when I first bought my 4runner the wipers turned on when the spray button was pressed. I switched out the pump because the old one did not work with a pickup pump but I think the pumps are the same and are not related to the wipers.
My question is do your windshield wipers turn on when you press the spray button?

Thanks,
Chris

RAD4Runner

Yes, on my 86 4Runner, dlx, 22R-E, 4WD 5-Speed Manual the wipers come on a for a few wipes.

old87yota

You must have the fancy intermittent wipers. I should up grade mine!

The base model version only squirts the washer fluid when you press the button. Then you have to push the stalk up to get the wipers to move.

Or at least mine works like that. It sure beats having to dump a bucket of water on the windshield and moving each wiper arm individually with a handle.

wallytoo

iTrader: (1)

not my '87. when the spray button is pushed, the wipers do NOT operate. the wiper stalk must be shifted to int or low/hi to operate the wipers. otherwise, the washers just spray the fluid without wiper action.

84 yota dude

Hmm ok thanks for the replies. Is there any way to make the wipers come on? I'll see if there is anything in the FSM.

dropzone

iTrader: (6)

One way is to just turn them on as you push the fluid washer..

tacomanut

interesting

84 yota dude

Haha @dropzone that's what I do! I just want them to come on automatically. Call me picky haha

wallytoo

iTrader: (1)

you'd need to do some rewiring, and perhaps use a different wiper stalk. they don't operate that way from the factory.

mchapter

I actually dislike this, because usually the timing is such that the wipers aren't wet and they judder for the first swipe, and then I end up manually operating them anyways.

So on the second gen, probably a totally different system, but a quick press will just spray, and a long press willl spray + wipe.

RAD4Runner

Either the 1987 has a different control system from the 1986 OR there's something wrong with the controls...
My 1986 basic, stripped-down DLX sprays then wipes.

You Tube

ewong

My 1989 DLX has the "fancier" wiper module (variable, intermittent)

Its NEVER done a "wipe" when the button is pressed (I bought the truck new in 1989)
I've just gotten into the habit of clicking the stalk to get it to wipe.

old87yota

Interesting. You have the fancy intermittent time delay wiper system. My basic wiper stalk only has MIST, OFF, LO, and HI settings. With this simple setup, you need to push the button to squirt the washer fluid, and then push the stalk up to the "MIST" or to the "LO" setting to move the wipers.

I bet the difference between these two setups is the wiper time delay control box. The basic wiper setup does not have this box. I would assume 84 yota dude probably has the same wiper system as you, being that he has power everything, but you never know.

I seem to remember Terrys87 had a post in one of his threads about the wiper control box. Found it: https://www.yotatech.com/forums/f199...l#post52203180

It is hard to read the wiring diagram in my Factory Service Manual.

old87yota

Maybe RAD4Runner installed a mod none of us know about... or he got lucky and got the extra fancy system..... hummmmm........ strange......

RAD4Runner

LOL! I'm selling my mod write-up for that - LOL!

Oh...
So many vehicle-model-year-trim-variants out there. Confusing.
Could very well be that you have the most basic one; basicER than on a DLX.
Either live with what you have or find similar wiper control module / system as 1986DLX and rewire if necessary.

wallytoo

iTrader: (1)

it isn't merely related to having variable-delay intermittent wipers. my '87 has variable intermittent wipers, low, high. no mist position, and no wiper action with the wash button pressed.

old87yota

OK, of the people who have intermittent wipers:

No wiper when washer button is pressed:

• 84 yota dude [Thread Starter] (Assuming he has intermittent wipers)
• Wallytoo
• Ewong

Has wiper action when washer button is pressed:

• RAD4Runner

I wonder if there is a way to determine if a wiper system will wipe when the button is depressed. It would be cool to know when I eventually add this option to my truck.

I know my system is the most basic version so I wouldn't expect mine to wash and wipe with one button.

84 yota dude

Wow didn't know so many people would be talking about this! Haha I brought it up in the first place because it is annoying to have to move the lever down when you use the spray.
@Rad4runner thanks for the vid, that's exactly what I am talking about. I will look at mine and take some pics and play with it. I have the intermittent wiper control btw.
Anyways here is what the FSM says. Anyone know where this switch it? Behind the steering wheel? Also FYI this is a 1988 FSM but I believe the info can't change that much through the years.

JNorton

88 SR5. Wipers do not come on. IDK, I just always figured it was a little too old for that fancy stuff. I do have the intermittent wipers.

GeoRoss

I'm in the same boat as Rad. 1986 DLX package with intermittent wipers that turn on and wipe for a few seconds when I hit the washer.