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Subject:Re: Rad Fan
From:Scott DeSanti
Date:Thu, 2 Jul 1998 21:02:00 EDT

In a message dated 98-07-02 20:32:45 EDT, you write:

<<
 Okay...again, you are probably way ahead of me, but FWIW, the following info
 is condensed from my Haynes re locating a ground fault:

 "To check whether a component is properly grounded, disconnect the battery,
 and connect one lead of an ohmmeter to a known good ground point. Connect
 the other lead to the wire or ground being tested. The resistance reading
 should be zero; if not check the connection as follow:

 If a ground connection is thought to be faulty, dismantle the connection,
 and clean back to bare metal both the bodyshell and the wire terminal or the
 component ground connection mating surface. Be careful to remove all traces
 of dirt and corrosion, then use a knife to trim away any paint, so that a
 clean metal to metal joint is made. On reassembly, tighten the joint
 fasteners securely."

 Of course this doesn't help if the ground problem is somewhere along the hot
 lead but at least this can help the deductive process.

 Maybe I couldn't help you but I learned from you the trick of using the A/C
 to actuate the rad fan!  Thanks!    8~)
  >>
Thanks again Kit,
      But, you're right...I was ahead of you.... turns out the ground off the
fan motor had degraded to 6 kohms.  I cleaned the ground terminals behind the
fuse box where it's supposed to connect but no dice.  Apparently, corrosion
inside the ground wire itself has caused this increase in resistance.  I was
able to regain full function by installing a second ground wire of equal guage
to a ground point under the gear shift.  Trimmed and treated the metal for
good contact and covered with protectant.  She works good now.  Thermotime and
resistor both check good.  Thanks for all the info....from everyone.  It was
great help.... and saved me a bunch of bucks.'

Scott De Santi

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