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Old 03-05-2011, 10:33 AM   #1
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wipers don't work

MY99 Boxster,

simply put, my wipers don't work. Fuse is fine. I assume it could be the relay (?).

Everything else works, so I assume the ignition should be OK.

any ideas???


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Old 03-07-2011, 05:33 AM   #2
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Figured out whats wrong: bad wiper motor.

What I did was first check the fuse. In my case, fuse is OK. Its not uncommon for a bad motor to blow fuses.

Then I removed the wiper motor. Simply removing the 13mm nut off the blade assembly, then the remaining 3 10mm nuts on the motor, and the 10mm on the bracket the covers. Remove the wiper motor.

I then put 12 volts to the motor (actually, I already knew it was bad, because it was pretty warm. But 12 volts, no spin.

I then removed the plastic cover to see if it was all gummed up. Sort of gummy, but not bad. So, I pulled out the 'spindle' by tapping down the the washer that holds it in place. Once pushing down on those washer 'tabs', the shaft pulls right out. Then I placed 12 volts again, and after a couple jolts, it did spin. Problem is, wouldn't spin every time. So, I decided what the heck, lets take the motor apart. I found damaged brushes (assuming those are the long thin pieces that cover the windings.

Probably could rebuild the motor, but went ahead and ordered another wiper motor.

Problem solved
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Old 03-07-2011, 06:05 PM   #3
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Good info, thanks for posting the solution, I'm sure someone will run into the same problem and find this post.

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