Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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RASMATAZ
AUTOMOTIVE REPAIR CONTRIBUTOR
75,992 POSTS
If its making a humming noise when switch is activated it means its working- most likely here is its clogged-up check from the pump motor to spray nozzle on windshield
Jun 23, 2011 at 11:13 PM
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MHPAUTOS
AUTOMOTIVE REPAIR CONTRIBUTOR
31,937 POSTS
clean the nozzles, and use low pressure air to blow back down the lines, often the impeller on these pumps just fail, they are simple to replace, to test, unplug the washer hose at the bonnet and see if you have good flow there.