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Hard to say what's wrong without testing thing's . Is there B+ voltage to the wiper switch ? B + voltage to the wiper motor ? Do you know how to use a voltmeter ? How to test electrical circuits ?
Here is a factory service manual list of componets involved .
Wiper/Washer System Components
The Wiper/Washer System consists of the following electrical components:
• Accessory relay
• Heated washer nozzles w/XA7
• WASH NOZ 10A fuse
• Windshield washer fluid level switch
• Windshield washer pump motor
• Windshield wiper motor
• Windshield wiper motor module
• Windshield wiper/washer switch
• Wiper/washer switch 10A fuse
• Wiper motor 30A fuse
Your hoses could be frozen if its cold where you are. Check the hoses for cracks. You might find fluid in your engine compartment if you have a broken hose. Listen to hear if the motor is pumping. There should be some sound either a click or a whiz sound when you push the washer button. If you hear no sound then check the wires on the pump. If they look good you probably need to replace the pump.
Is your wiper fluid level good?Look for leaks at pump,it's connected to container,also check your hoses leaving pump to windshield,could be loose or binding.
Sometimes disconnecting the battery does more damage then you want it might have trip a fuse or relay check those if thats not it, maybe wiper motor or transmission went out.
The most common problem I find in this season, is having summer 32 deg. F freezing windshield wiper fluid in the tank rather than -20 deg. F freezing windshield wiper fluid.
Try to warm up the car by parking it in a heated garage until the windshield wiper fluid thaws. Then, try to use it all up, and add the 'winter' vs. the 'summer' formula of windshield wiper fluid.
If this does not solve the problem, the pump might be burnt out, in my experience.
You should hear a humming sound as you depress the button for windshield wiper fluid inside of the car.
1) Fluid resevoir is empty
2) Fluid is frozen
3) Washer fluid hose is disconnected, blocked or kinked
4) Washer switch is faulty
5) Washer pump motor is defective
6) Washer pump fuse is blown
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