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LH Radiator Fan not working

Discussion in '348/355' started by tashier, Mar 13, 2009.

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  1. tashier

    tashier Formula Junior

    Sep 8, 2008
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    Sean
    #1 tashier, Mar 13, 2009
    Is there a common failure point on these radiator fans? The switch or the motors etc.? LH fan never seems to come on even when temp exceeds 190 which is the point the WSM says it should switch on.
     
  2. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
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    #2 f355spider, Mar 13, 2009
    Last edited: Mar 13, 2009
    Both can fail. Quick test, short the plug to the thermo-switch screwed into the radiator, that should cause the fan to come on if the ignition is "on". Of course this will require you to remove the left wheel and fender liner. If you need the fan, they are inexpensive here: http://www.the-fan-man.com/shop/size-pull-part-2049-p-219.html?osCsid=c5b9027f5137ba744d1d40e666124cd1

    Or here: http://www.srbymichael.com/manufacturers/spal/fans.shtml

    The only difference is you will need to splice on the "ferrari specific" plug from your old fan to the new one.

    Thermo-switch I believe you need to order from Ferrari (or Ricambi ;) ).
     
  3. ferrari.ace

    ferrari.ace Karting

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    #3 ferrari.ace, Mar 13, 2009
    Make sure the return (bleed) hoses to the expansion tank aren't clogged and fill and bleed the cooling system properly before worrying about any thing else.
     
  4. No Doubt

    No Doubt Seven Time F1 World Champ

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    #4 No Doubt, Mar 13, 2009

    Check coolant level, then turn the heater on in your cockpit and bleed the radiators again. An air bubble can easily insulate the sensor, preventing an accurate turn-on, otherwise.
     
  5. elgin328

    elgin328 Formula 3

    Apr 11, 2004
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    #5 elgin328, Mar 13, 2009
    Last edited: Mar 13, 2009
    Check the fuse under passenger side foot rest. Mine did that about 4 years ago replaced fuse that was bad.... still working today with no problems

    I only had 1 Ferrari tech. to tell me to check the fuse, all the rest wanted to change the fan motor @ $600.00 per side.

    parts changers don't ya hatem!
     
  6. tashier

    tashier Formula Junior

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    Sean
    #6 tashier, Mar 13, 2009
    Thanks for all the good info. I will check it out!
     
  7. greyboxer

    greyboxer F1 World Champ

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    #7 greyboxer, Mar 14, 2009
    You don't say if the other fan comes on at all

    This may be important in that it is rare for fan 2 to come on for temperature and you may be cross wired (usually left first)
     
  8. tashier

    tashier Formula Junior

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    #8 tashier, Mar 14, 2009
    Last edited: Mar 14, 2009
    The RH fan does come on but but I believe it is controlled by a temp sensor in the oil since it cools both oil and coolant radiators.


    Edit: OK, it's not controlled by oil temp. According to the WSM the RH fan is controlled by the sensor/switch up on the water manifold. It turns it on at 95 degrees. Seems kind of low to me. I guess that's why the RH fan seems to run all the time.
     
  9. tashier

    tashier Formula Junior

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    Sean
    #9 tashier, Mar 14, 2009
    I started looking for a coolant problem when I noticed coolant coming out of the overflow. The water temp showed near 200 degrees and the LH fan hadn't kicked on still. In fact I've never seen it on. Driving the car around with air going through the radiators it stays well below 190.
     
  10. tashier

    tashier Formula Junior

    Sep 8, 2008
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    Sean
    #10 tashier, Mar 14, 2009
    I jumped the sensor and the motor came on but no fan rotation. Pulled the fan off and the hub on the fan is shot, not to mention the motor doesnt really sound all that great either. Looks like a new fan is needed.
     
  11. tashier

    tashier Formula Junior

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    #11 tashier, Mar 15, 2009
    Trying to see if I can find as close to OEM as possible. It is a Spal fan. The part# I can read that is legible is VA18 AP6 and then becomes illegible after that. What did you order when you replaced yours from that website?
     
  12. tashier

    tashier Formula Junior

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    #12 tashier, Mar 15, 2009
  13. davey_jones

    davey_jones Formula Junior

    Sep 28, 2002
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    Dave
    #13 davey_jones, Mar 21, 2009
    I re-wired & replaced both fans a couple weeks ago. Use that that thread link above and save some change!
    Easy job, I'm glaad I did it myself.
     
  14. f355spider

    f355spider F1 World Champ
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    #14 f355spider, Mar 22, 2009
    I guess you ignored my previous post in this thread...oh well I tried. ;)
     
  15. tashier

    tashier Formula Junior

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    #15 tashier, Mar 23, 2009
    I saw your post, sorry I guess I was just looking for my info. After all the searching around I ended up right back where you told me. :D
     
  16. f355spider

    f355spider F1 World Champ
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    #16 f355spider, Mar 23, 2009
    You might want to consider replacing both fans while you are at it...they do not seem to be the best quality.
     
  17. tashier

    tashier Formula Junior

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    Sean
    #17 tashier, Mar 24, 2009
    Right now it sounds like it's working just fine so I will wait for now. I got the new one on the left side after soldering on the plug. It works and sounds great.
     

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