Tach needle offset | FerrariChat

Tach needle offset

Discussion in 'Technical Q&A' started by AD211, Dec 27, 2019.

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  1. AD211

    AD211 Formula 3
    Owner Silver Subscribed

    Aug 19, 2017
    1,055
    South Carolina
    Full Name:
    Andy
    #1 AD211, Dec 27, 2019
    Recently had the battery replaced in my 2010 California. When I received the car back, I noticed the tach needle was below zero when the car was off but also at idle at a stoplight (last pic), etc. Dealer says their repair (new battery, water valve) is unrelated. It moves fine when driving but no idea if it’s ‘correct’ since the starting point is off. Any thoughts on the cause? I returned it to the dealer and they are checking the ‘tach motor’ and say that disconnecting/reconnecting the battery did not resolve the issue. It worked perfectly fine when they picked it up for the battery replacement but not upon delivery. (I searched the forum but didn’t find help...apologies if I missed the answer here on Fchat somewhere).

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  2. Sled Driver

    Sled Driver Formula Junior

    May 13, 2010
    494
    Stokesdale, NC
    Full Name:
    Emery
    #2 Sled Driver, Dec 28, 2019
    I would give Rod Drew at Francorchamps of America in Costa Mesa, CA a call, 949 631-6373

    he can tell you “what happened” and how to fix it. It might require you to pull the instrument cluster to have him fix it.
    The dealer will just replace it for $4-5K
     
  3. AD211

    AD211 Formula 3
    Owner Silver Subscribed

    Aug 19, 2017
    1,055
    South Carolina
    Full Name:
    Andy
    #3 AD211, Dec 28, 2019
    Thank you for your reply. The dealer did mention they typically send them to CA for repair. Wonder if it’s the same resource?? I’ll reach out to him.


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  4. Solid State

    Solid State F1 Veteran
    Owner Rossa Subscribed

    Feb 4, 2014
    9,652
    Full Name:
    Maximus Decimus Meridius
    #4 Solid State, Jan 1, 2020
    Seems too much a coincidence that a new electrical issue occurred that wasn't there until immediately after they changed the battery. Wonder if they swapped the cables wrong and fried a component in the tach/dash or maybe tried to jump it which many have said damages the dash. Seems fishy. Don't think you'll every know for sure.
     
  5. Ashapir3

    Ashapir3 Rookie

    Jul 17, 2020
    16
    Full Name:
    Anthony Shapiro
    #5 Ashapir3, Mar 29, 2021
    Hey did you ever figure out what’s causing this/how to fix it? Have the same issue just happened today when I turned the car on.
     

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