No Spray from windshield wiper?

Tiny
GRTBRWN
  • MEMBER
  • 1995 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 175,000 MILES
I am getting no spray from the windshield wiper reservoir. Wipers engage, just no spray? 95 Blazer
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Wednesday, March 9th, 2011 AT 9:23 PM

8 Replies

Tiny
CARADIODOC
  • EXPERT
Do you hear the washer motor running? If not, suspect a defective motor. You can double-check by measuring the voltage between the two wires in the plug while a helper presses the switch. If the motor does run, look for a cracked rubber hose.
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Wednesday, March 9th, 2011 AT 9:35 PM
Tiny
GRTBRWN
  • MEMBER
Yes, replaced that motor. No cracks in the lines. Still nothing.
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Wednesday, March 9th, 2011 AT 9:56 PM
Tiny
CARADIODOC
  • EXPERT
Did you measure if there is voltage going to the motor?
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Wednesday, March 9th, 2011 AT 10:01 PM
Tiny
GRTBRWN
  • MEMBER
There is. (Baffled).
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Wednesday, March 9th, 2011 AT 10:10 PM
Tiny
CARADIODOC
  • EXPERT
How about the ground wire? If you measured with the meter's ground lead on the battery or body, try it in the ground wire of the plug. Also keep in mind a voltmeter draws almost no current to take its reading so you can have a broken wire with just a little carbon track in the break. That will be enough for the meter to pick up but it won't pass enough current to run the motor. In cases like this, a less expensive test light can be more accurate. You can connect any 12 volt bulb such as a brake light bulb to the two wires in the connector. If the bulb lights up, you know it should be running the motor.
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Wednesday, March 9th, 2011 AT 10:26 PM
Tiny
GRTBRWN
  • MEMBER
Thank you! Bad ground wire! Thank you again!
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Thursday, March 10th, 2011 AT 12:00 AM
Tiny
CARADIODOC
  • EXPERT
Awl right. One in a row! Was it corroded where it bolts to the body?
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Thursday, March 10th, 2011 AT 12:12 AM
Tiny
GRTBRWN
  • MEMBER
Yes, it was hard to see. Those little things can get-cha!
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Thursday, March 10th, 2011 AT 12:42 AM

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