92 Accord overheats when AC turned off. Honda

Discussion in 'Accord' started by Sam Nickaby, Jul 24, 2005.

  1. Sam Nickaby

    Sam Nickaby Guest

    The car is overheating (needle points to red line) idling in traffic. When I turn on
    the AC, the temp is fine. When I turn ignition off the condenser fan kicks in. I then
    drive home and remove the bleed hole and find no trapped air (temp dial is set to
    HOT.) I then remove the (92-96 C) fan switch. I jump the switch terminals with
    ignition on. The fan runs. I pot boil the switch connected to an ohmmeter. Right before
    the water begins to boil, the switch closes. I reinstall the switch, refill, bleed and
    allow the fan to come on twice, as instructed by the service manual. The car does
    not over heat anymore, confusing. What could cause this random overheating?

    Sam Nickaby, Jul 24, 2005
  2. Sam Nickaby

    motsco_ _ Guest


    Possibly some corrosion on the connectors you dislodged. Good diagnostic
    procedure !

    Keep an eye on the reservoir level.

    motsco_ _, Jul 24, 2005
  3. Sam Nickaby

    Professor Guest

    Sounds like your cooling fans are not coming on at the proper time in
    non-A/C mode intermittently. Remember, when you turn on the A/C... the
    cooling fan(s) come on whenever the compressor is engaged. Maybe the
    switch you boiled is intermittent. I would change that first.

    Professor, Jul 24, 2005
  4. Sam Nickaby

    « Paul » Guest

    I have never worked on a Honda. That being said, most other cars use
    more than one temp sending unit. One for gauge, one for a/c, one
    for each fan, one for each head, etc.
    Perhaps the sending unit for the fan is bad.
    OR, the fan motor is bad and sometimes does not run.
    Take the fan motor apart and look at the brushes.
    « Paul », Jul 24, 2005
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.