Hello, and thank you for taking the time to read this posting. I have a 1972 Mustang fastback that has wipers with an attitude. When activated, the wipers work fine at both speeds. However, they will not stop when turned to the off position. I have tried both a different motor and switch with the same results. I cannot see any burned wires or anything of that nature so I guess I need some help from you more experienced Mustang guys. Has anyone had a similar problem?
Welcome to AFM. I've moved your thread to "Classic Tech". They'll be better able to answer this.
My guess is a wiring issue. They're not delay wipers, are they?
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1992 Deep Emerald Green Mustang GT Hatch, 5 speed, 2.73s, Mac fenderwell cold air intake, '93 Cobra MAF, Mac 70mm throttle body & spacer, Explorer intakes, Mac unequal headers & offroad pipe, Magnaflow catback, Walbro 110lph fuel pump, Jet adjustable FPR, MSD Blaster coil, Accel 8mm wires, FRPP aluminum quadrant, UPR firewall adjuster, stock cable, Granatelli upper control arms.
Waiting to go on: Granatelli lower control arms, and GT40 Iron heads!
Yes, I had a similar problem, just not on a Mustang.
My '87 Caprice had this problem and it was especially worse the colder it got. It was the circuit board for the wipers controlling the time delay as Meangreen said.
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1968 Mustang coupe, Acapulco Blue, 289 2v, C-4, Power Steering.
Hopefully a 1969 convertible or Sportsroof (non Mach or Boss) for next Mustang project
Trying to find my father's 1973 Mustang Grande he bought brand new. 3F04F126773 last known registration and title was in New Jersey, 1982.
Thanks for the replies. I would vote for wiring also I just don't know how to troubleshoot that. The wipers were originally 2-speed that I changed to intermittent. I removed all of the intermittent components when the problem began. But, going back to the original 2-speed setup didn't make a difference...the wipers still keep on truckin in the off position.
Test 'em between the motor and the switch. I would think that the switch interupts the positive side of the circuit, but if it switches the ground side, then I could see a chafed/bare wire causeing that.
Are they on the slow speed when it happens?
Also, is your washer switch part of the wiper switch? Or is it separate?
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1992 Deep Emerald Green Mustang GT Hatch, 5 speed, 2.73s, Mac fenderwell cold air intake, '93 Cobra MAF, Mac 70mm throttle body & spacer, Explorer intakes, Mac unequal headers & offroad pipe, Magnaflow catback, Walbro 110lph fuel pump, Jet adjustable FPR, MSD Blaster coil, Accel 8mm wires, FRPP aluminum quadrant, UPR firewall adjuster, stock cable, Granatelli upper control arms.
Waiting to go on: Granatelli lower control arms, and GT40 Iron heads!
I have a friend who could probably troubleshoot the wiring for me...thanks. The washer is combined with the switch...you push it in to get the squirts.
i have a similar problem on my '64.5 mustang. I would turn the wipers off and they would continue down, when they got to the bottom they would pause for a short time then start going again. Still haven't figured it out...
-Sore
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1964 1/2 Mustang (Teal Green), Ford 302, Bored .030 over, 3/4 cam, Edelbrock Performer 289 Intake Manifold, Edelbrock 650 CFM Carb, Hooker Headers/Collectors, 2 1/2" Exhaust Pipes, H-Pipe, Summit Glasspacks, 15" Magnum 500's, Cooper Cobra 215/65 front - 235/65 back, Summit 3 1/8" Tach w/ Shift light, 105,000 Original Miles On Body, 2500 Miles On Engine, Interior and All Chrome/Decals are Original and in Great Shape!
1972 Mustang Windshield Wiper Help 
