Wiper Problems.

[carpart67]

I’ve got a Canadian built 1986 GMC, 1500 4x4. It’s anyone’s guess as to what parts are original lol.

I am having some problems with my wipers. I’ve only got one speed, and they are not automatically returning to the bottom of the window. The markings on the wiper switch have worn off but it looks like the truck originally had intermittent wipers as well, as there are positions before the high and low. (Also has some buttons on the end, perhaps from cruise?) Also when I press the windshield wash button the wipers don’t stop unless I turn them on, and then off again. Seems like the wipers don’t have much power, like they can barley drag themselves across the windshield as well.

Any ideas where I should start looking to troubleshoot these issues? I haven’t done much yet as I was hoping someone may have experience or be able to give me a starting point. Any help would be appreciated.

 

[bucket]

The best place to start is by replacing the wiper motor, since it's very weak. Then see what problems might be left afterward.

 

[towjoe]

The best place to start is by replacing the wiper motor, since it's very weak. Then see what problems might be left afterward.

Where I'd start to

 

[carpart67]

All right, thanks guys. I'll try to find a replacement and try.

 

[towjoe]

about any parts store around 25-35 bucks if I remember right

 

[bucket]

They are a little more now I think, like $40-45 with the washer pump.

 

[towjoe]

his is a 86 so it shouldn't have the built in pump if I remember right. I think in 85 they went to the electric in washer fluid tank pump? I knw I just took one off a 85 and addapted it onto a 81 since I couldn't keep original in wiper one working

 

[bucket]

his is a 86 so it shouldn't have the built in pump if I remember right. I think in 85 they went to the electric in washer fluid tank pump? I knw I just took one off a 85 and addapted it onto a 81 since I couldn't keep original in wiper one working

Your right, I forgot about that.

 

[towjoe]

I know we just put one on a 2005 Ferd and it was only $42. chevy parts are almost always way cheaper, that's why I like my chevys

your right me bad, there in stock at auto zoo here for $47 and $10 core

 

[john55]

i wonder if the motor is the reason my wipers are slow even on the higher speed? does the 77 wipers only have 2 speeds? thanks in advance john

 

[towjoe]

there was a plug in option for delay wipers that was a factory setup. Very possible your wiper motor is getting tired. Have you tried checking all the wiper transmission and adding a few drops of oil?

 

[carpart67]

there was a plug in option for delay wipers that was a factory setup. Very possible your wiper motor is getting tired. Have you tried checking all the wiper transmission and adding a few drops of oil?

I haven't, but I'll give it a try.