After-Market
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Mountain Pass
Joined: Nov 2019
Posts: 216
Likes: 0
After-Market
Does anyone know if there is an after-market wiper motor and switch that will drive the wipers in my '90 F150 4.9L Ext. Cab?
That is the only thing I don't like about my old girl. We don't get a lot of rain but when we do it is frequently just enough to cloud the windshield. I hate to run the slow speed wipers when there is little water on the window.
Along the same lines, I'm old and arthritic and can't get in and out as easily as I used to. Is there an after-market granny bar that can be added to the driver's door?
I don't even know where to look for such things.
That is the only thing I don't like about my old girl. We don't get a lot of rain but when we do it is frequently just enough to cloud the windshield. I hate to run the slow speed wipers when there is little water on the window.
Along the same lines, I'm old and arthritic and can't get in and out as easily as I used to. Is there an after-market granny bar that can be added to the driver's door?
I don't even know where to look for such things.
Hotshot
Joined: Jun 2015
Posts: 12,836
Likes: 2,437
For what reason? In 1990 the wiper switch is on the dash.
rabbit-hutch,
I guess you are aware that if you have intermittent wipers , that function is accessed by turning the **** counterclockwise.
rabbit-hutch,
I guess you are aware that if you have intermittent wipers , that function is accessed by turning the **** counterclockwise.
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Cargo Master
Joined: Oct 2016
Posts: 2,738
Likes: 217
From: Northern VA
The intermittent switch (if you don't already have one, as above) can be sourced from a 80-91 (if I recall) F-series or bronco, just find one and swap out.
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Lead Driver
Joined: Feb 2002
Posts: 7,961
Likes: 594
From: Greater Austin, Texas
Mine has intermittent wipers, but still, there are times when you want just one swipe. GM used to have this option on some cars in the 60s, before intermittent wipers were offered by GM. It was labeled "Mist".
I added a "Mist" button to mine. That may suffice for you. It's been so long ago that I added this, I don't remember which wire, but if you remove the wiper switch (leaving the plug attached), and with the key on, touch each wire with a test light with the other end of the test light grounded, you will hit a wire that will make the wipers swipe. Just add a little momentary-contact button (mine is in the right hand lower corner of the square that surrounds the wiper switch) and then splice it to this wire on the switch and then the other contact to ground, you can then press the button momentarily and get one swipe of the wipers.
I added a "Mist" button to mine. That may suffice for you. It's been so long ago that I added this, I don't remember which wire, but if you remove the wiper switch (leaving the plug attached), and with the key on, touch each wire with a test light with the other end of the test light grounded, you will hit a wire that will make the wipers swipe. Just add a little momentary-contact button (mine is in the right hand lower corner of the square that surrounds the wiper switch) and then splice it to this wire on the switch and then the other contact to ground, you can then press the button momentarily and get one swipe of the wipers.
Mountain Pass
Joined: Sep 2009
Posts: 238
Likes: 14
Does anyone know if there is an after-market wiper motor and switch that will drive the wipers in my '90 F150 4.9L Ext. Cab?
That is the only thing I don't like about my old girl. We don't get a lot of rain but when we do it is frequently just enough to cloud the windshield. I hate to run the slow speed wipers when there is little water on the window.
Along the same lines, I'm old and arthritic and can't get in and out as easily as I used to. Is there an after-market granny bar that can be added to the driver's door?
I don't even know where to look for such things.
That is the only thing I don't like about my old girl. We don't get a lot of rain but when we do it is frequently just enough to cloud the windshield. I hate to run the slow speed wipers when there is little water on the window.
Along the same lines, I'm old and arthritic and can't get in and out as easily as I used to. Is there an after-market granny bar that can be added to the driver's door?
I don't even know where to look for such things.
FTE Chapter Leader
Joined: May 2006
Posts: 12,338
Likes: 1,314
From: Central Mississippi
Don't know if this will show, but I see at least 4 intermittent wiper switches at Rock:
https://www.rockauto.com/en/catalog/...er+switch,4856
At least 2 types motors, don't know which is intermittent:
https://www.rockauto.com/en/catalog/...per+motor,8824
Somebody here bolted up a Escape grab handle above their door, maybe somebody can link the thread if they know where to find it.
Good luck, we're all getting old.
More Turbo
Joined: Dec 2003
Posts: 616
Likes: 5
From: Missouri - Lake of the Oz
"i can see clearly now"
The wiper motors are the same for intermittent or standard. The switch is different, but it and its companion harness & the box containing the timing circuitry will plug directly into your dash harness. Other potential donors include a number of 1970s cars including T-Birds, Cougars, etc. Although those are about as rare now in the yards as poultry's enamel covered instruments of mastication. [Hen's teeth] Parenthetically, there is a now older movie about the gentleman who invented the intermittent wiper & how Ford kind of did him wrong regarding the intellectual property. It is titled, "Flash of Genius".
Last edited by donnor; Nov 13, 2019 at 08:40 AM. Reason: additional info