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Speedometer service

Discussion in 'General Discussion' started by 3pointstar, Sep 1, 2017.

  1. 3pointstar

    3pointstar Active Member Founding Member

    39
    35
    Jul 25, 2017
    Granger, Indiana
    2000 -- 226
    7.4 MPI- 310hp
    GMC 2500 Durmax
    Hi everyone - we have a 2000 226 7.4 MPI Bravo 3. I've noticed that the speedometer is not consistently working the way it did. We have the stock Faria gauges. I went to the outdrive and poked a narrow wire into the intake port thinking that something maybe blocking-- didn't really help that much --

    What I'm thinking is to disconnect the tubing from the speedometer at the dash and with low pressure blow out the line?

    Has anyone tried that?? Or will I screw something else up??

    Thanks in advance.

    3pointstar
     
  2. Jevon Jamieson

    Jevon Jamieson Member Founding Member

    24
    10
    Jul 30, 2017
    Rogers, AR
    2013 Cobalt 242
    Volvo 6.0L 380hp
    2012 F150 Lariat 4x4
    I just had mine serviced and they blew out some junk from the top of the lower unit. Works great now.
     
    Walt P and Keepin' It Classic like this.
  3. 3pointstar

    3pointstar Active Member Founding Member

    39
    35
    Jul 25, 2017
    Granger, Indiana
    2000 -- 226
    7.4 MPI- 310hp
    GMC 2500 Durmax
    Jevon, thank you -- it's this little stuff that drives me nuts - I wish there would be a listing that Cobalt would have in their owner manual of helpful hints
     
    Tonka Boater likes this.
  4. Walt P

    Walt P Administrator Founding Member

    299
    135
    Jul 25, 2017
    Prarie Creek Marina
    2001 Cobalt 262
    Volvo 8.1L Gi 375 HP
    That is the purpose of a forum like this. You get real world answers from folks who gave been through it. Not a sanitized answer that protects from liability. Don't get me wrong, my local Cobalt dealer always helps with real world answers, but I am sure some dealers aren't totally forthcoming so as to increase service revenue.
     
    Sarge and Tonka Boater like this.
  5. Sarge

    Sarge Member Founding Member

    19
    18
    Jul 26, 2017
    Kansas
    2002 Cobalt 226
    Volvo-Penta 8.1L gxi, 420 hp
    1998 GMC Yukon
    Those who are here are, forgive the pun, in the same boat as you and as owners we only want to share our experiences to give and get the best information possible.
     
    Tonka Boater and Walt P like this.

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