355 Illumination lights flickering??? | FerrariChat
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355 Illumination lights flickering???

Discussion in 'Technical Q&A' started by Rjones355, Jul 12, 2004.

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  1. Rjones355

    Rjones355 Karting

    Jul 6, 2004
    62
    Rancho Murieta, CA
    Full Name:
    Ryan Jones
    #1 Rjones355, Jul 12, 2004
    I just noticed that at night time when I turn my headlamps on I get a slight flickering on the dash and center counsel. It usually happens if I hit a bump in the road. It seems like, if the lights go off, I can tap on the speedometer housing and they will come back on. I assume its a loose connection somewhere, but not sure where. I guess it could be anywhere but maybe I should start near the speedometer housing.
    Anyone else with a similar problem. Or anyone can get me going in the right direction?

    Thanks
     
  2. wfo900

    wfo900 Formula Junior

    Aug 19, 2003
    530
    Annapolis
    Full Name:
    Rich C
    #2 wfo900, Jul 12, 2004
    It happened to me as well and I checked the fuses and made sure they were seated well. Old 911s (60s -70s) had that problem as well. That worked for a while but now its doing it again so if anyone as a suggestion...
     
  3. delaney

    delaney Formula Junior

    Nov 8, 2003
    717
    Montgomery TX
    Full Name:
    PETER DELANEY
    #3 delaney, Jul 12, 2004
    If the lights are flickering, it could be the voltage control regulator on the alternator.

    However, that said, if the lights go out .. and you tap the speedo and on they come .... ain't the regulator!
     
  4. Rjones355

    Rjones355 Karting

    Jul 6, 2004
    62
    Rancho Murieta, CA
    Full Name:
    Ryan Jones
    #4 Rjones355, Jul 12, 2004
    Does anyone know if there are some ground wires behind the speedo. Because it sems to be related to the speedo area, I was thinking about trying there first.
     
  5. richard_wallace

    richard_wallace Formula 3

    Feb 6, 2004
    1,957
    Cincinnati, Ohio
    Full Name:
    Richard Wallace
    #5 richard_wallace, Jul 12, 2004
    I actually was behind the instrument panel just yesterday - ... Had a little bulb I wanted to replace (airbag light bulb).

    Could be the connection for the overall illumination back there - I actually had one or two that were not "tight" - but did not appear to cause any flickering...

    Here is what you do to check - and it is a 10 minute job (and easy). There are two scres just underneath the oval leather unit (which I will call the Speedo housing area). One one each side of the steering wheel.

    Take those out... At this point you will notice the entire leather Speedo Housing will come off to the left - toward the drivers side in the US. Just enough for you to look behind and work back there...

    At this point you can check all your connections and replace any bulbs, etc.

    Get yourself a nice work light or flashlight - The screws are beteen the Leather Speedo housing and the leather trim just below it - and painted back which they are hard to see at first...

    Also - since there is not copious space to have a ton of room when you free the Speedo Housing - you will need a flashlight to see all the connections (which there are like 20...)

    Hope that helps...

    Rich
     
  6. Rjones355

    Rjones355 Karting

    Jul 6, 2004
    62
    Rancho Murieta, CA
    Full Name:
    Ryan Jones
    #6 Rjones355, Jul 13, 2004
    Thanks, it seems like an easy job, and the most likely place to start.
     

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