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speedometer and rev counter

Discussion in 'Technical Q&A' started by ricbowling, Dec 28, 2008.

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  1. ricbowling

    ricbowling Karting

    Jan 21, 2008
    140
    Cascais
    Full Name:
    Ricardo Almeida
    #1 ricbowling, Dec 28, 2008
    3 months ago my rev counter stopped working during a few hours and then somehow without me doing anything got back working properly. This happened maybe 5 times in the past since then. Now, the exact same situation occurs but with the speedometer. Any hints on solving procedure.
     
  2. dm_n_stuff

    dm_n_stuff Four Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2003
    43,755
    26.806311,-81.755805
    Full Name:
    Dave M.
    #2 dm_n_stuff, Dec 28, 2008
    1993 348 Spider before anyone asks. :D
     
  3. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,966
    Milton, Wash.
    Full Name:
    Jeff B.
    #3 Miltonian, Dec 28, 2008
    When your speedometer stops working, does the odometer stop as well, or does it continue to add up the miles (perhaps erratically?). Did the speedo just stop, or is the needle jumping around?

    If you've had troubles with both the speedo and the tach, that MIGHT be an indication of a bad connection at the wiring harness to the dash pod. It's easy to check.
     
  4. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,614
    The Brickyard
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    The Bad Guy
    #4 ernie, Dec 28, 2008
    Last edited: Dec 28, 2008
    Roger that.

    2 screws, one on each bottom corner of the instrument pod, get removed, the steering column gets lowered all the way down, then get a firm hold of the sides of the pod and pop it straight up.

    Then you will want to check the connector on the left hand side of the engine bay, right between the shock tower and charcoal canister. After that the connection for the speedometer sending unit attached to the left bottom side of the gear box.

    But start with the connection behind the pod like Jeff suggested.
     

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