Electrical problem on 365BB - help? | FerrariChat
Buy

Electrical problem on 365BB - help?

Discussion in 'Boxers/TR/M' started by NickP, Aug 26, 2009.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. NickP

    NickP Rookie

    Nov 7, 2006
    5
    #1 NickP, Aug 26, 2009
    Has anyone experienced a similar problem? The fuse controlling the dashboard gauges and the radiator fans keeps blowing. The car has had the motor out for some two years (actually it was to fix the dreaded transaxle collapse), but prior to that I experienced no problem with the fuse. Any ideas. I'm desperate to get back on the road!
     
  2. fastradio

    fastradio F1 Rookie
    BANNED Professional Ferrari Technician

    Apr 26, 2006
    3,664
    New England
    Full Name:
    David Feinberg
    #2 fastradio, Aug 26, 2009
    Nick,
    I haven't seen this problem with a BB. If the problem occurs when the fans turn on, I'd verify that both are indeed running. It is possible that one may be seized for sitting...

    Other than that, start disconnecting items from the various circuits...

    Sorry I couldn't be more help.

    Best,
    David
     
  3. petearron

    petearron Formula Junior
    BANNED

    Jul 1, 2009
    687
    Las Vegas
    Full Name:
    jeff
    #3 petearron, Aug 26, 2009
    As David suggested you coulf have a failing fan motor shorting the circuit out or a short in the wire grounding out somewhere.

    Id check that the fuse is snug in its holder and the wires are tight as well concerning the connections, loose wire connections or fuse create problems and can cause a fuse to blow.
     
  4. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,825
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #4 Steve Magnusson, Aug 26, 2009
    Last edited: Aug 26, 2009
    If you mean fuse #3 (8A), your description is a little misleading as this fuse actually controls the relays controlling the radiator fan motors (not the radiator fan motors themselves -- they have their own separate 25A fuses). Fuse #3 also controls the "instruments" (i.e., the relay controlling the windows and the dashboard gauges).

    My advice would be to physically unplug relay H (the windows) and relays L & M (the radiator fan motors), and see if the problem remains (i.e., the trouble is in the wiring or the dashboard gauges) or if the problem goes away (i.e., the trouble is in one of the relays -- which would be very lucky for you; and therefore, probably unlikely ;)). Good Hunting! Give a shout for what result you get, and, if the trouble persists with those relays removed, I'll see if there's something more on the schematic that might help you track down the flaw.
     

Share This Page