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Old 31 Jul 2005, 11:47 pm
Todd K.
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Default Re: 91 Accord Cooling Fan Runs Slow?

Thanks for the tips. Its working now. Here's what I did:

Ran the diags from the service manual. While doing so, I noticed that
the fan would only run if I gave it a little spin. It still ran slow
though. So OK, bad motor. I took it out to try and rebuild the motor
(I did this succesfully on older Honda). Before I was to take the
motor apart, I hooked it up straight to battery just to make sure. It
ran great. Hooked it back up to connector. Ran the diags again.
Everything worked fine. I guess the jiggling to remove the fan freed
up some hung up brushes. I had a similar problem on the alternator
last fall. I removed a couple screws, jiggled the brush holder and
alternator has been fine since. A EE friend of mine says this is
common with small motors as the brushes wear down. They hang up and
the spring can't seat them properly on the commutator. A little jiggle
frees them up and they may run trouble free for a long time after that.

Todd K.

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