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2007 Volvo 670 - Speedometer/Cruise Control Suddenly Stopped Working

Discussion in 'Volvo Forum' started by parhag, Mar 21, 2012.

Page 1 of 2
  1. Mar 21, 2012 #1
    parhag

    parhag Bobtail Member

    8
    1
    Oct 20, 2011
    Chicago, Illinois
    0
    I was hauling a heavy load up a steep incline (I have a Volvo 465 Engine). When I got back on level ground, I noticed that BOTH my cruise control and speedometer had stopped working (I believe I had my cruise control "on" during the climb). I'm hoping that the speedometer just needs a new VSS sensor, but what could be causing my cruise control to stop working? I just had the oil changed this week as well as a hub cap kit installed on the right steer.
     
    parhag, Mar 21, 2012
    parhag, Mar 21, 2012
    #1
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  3. Mar 21, 2012 #2
    325TahoeSS

    325TahoeSS Light Load Member

    150
    71
    Feb 11, 2012
    Roma, Tx
    0
    Sounds like your speed sensor went out! It goes on your transmission!
     
    325TahoeSS, Mar 21, 2012
    325TahoeSS, Mar 21, 2012
    #2
    KB3MMX and parhag Thank this.
  4. Mar 21, 2012 #3
    parhag

    parhag Bobtail Member

    8
    1
    Oct 20, 2011
    Chicago, Illinois
    0
    Thanks buddy; that's what I'm thinking as well. I believe the part only costs @ $32. Is it something I can replace myself? BTW, smooth-looking truck my friend!!!
     
    parhag, Mar 21, 2012
    parhag, Mar 21, 2012
    #3
  5. Mar 22, 2012 #4
    Pablo-UA

    Pablo-UA Road Train Member

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    1,640
    Oct 11, 2010
    Borispol, Ukraine
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    it is bad VSS to VECU wiring.
     
    Pablo-UA, Mar 22, 2012
    Pablo-UA, Mar 22, 2012
    #4
  7. Mar 22, 2012 #5
    parhag

    parhag Bobtail Member

    8
    1
    Oct 20, 2011
    Chicago, Illinois
    0
    Thanks, that's what I've been hearing.
     
    parhag, Mar 22, 2012
    parhag, Mar 22, 2012
    #5
  8. Mar 22, 2012 #6
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
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    Oct 11, 2010
    Borispol, Ukraine
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    really many volvos got two speed sensors, one for engine ECM, other for VECU, but with cummins engine only, Volvo engine gets speed data from VECU via J1939
     
    Pablo-UA, Mar 22, 2012
    Pablo-UA, Mar 22, 2012
    #6
  9. Mar 23, 2012 #7
    parhag

    parhag Bobtail Member

    8
    1
    Oct 20, 2011
    Chicago, Illinois
    0
    Had a new VSS Sensor put in yesterday. She's running like a champ now! Thanks!!!
     
    parhag, Mar 23, 2012
    parhag, Mar 23, 2012
    #7
  10. Apr 4, 2012 #8
    The Bulkmatic Grasshopper

    The Bulkmatic Grasshopper Bobtail Member

    40
    17
    Apr 4, 2012
    Kentucky
    0
    Cruise is linked to the VSS, so that's why that quit working

    Cruise works now that the sensor's been replaced, right?
     
    Last edited: Apr 4, 2012
    The Bulkmatic Grasshopper, Apr 4, 2012
    The Bulkmatic Grasshopper, Apr 4, 2012
    #8
  11. Apr 4, 2012 #9
    Pablo-UA

    Pablo-UA Road Train Member

    7,604
    1,640
    Oct 11, 2010
    Borispol, Ukraine
    0
    Two speed sensors - one for EECU, other for VECU. any unit throws speed data to J1708 and J1939. when both sensors are bad - no speedo and engine does not revs over 1200.

    if VECU VSS is bad - no cruise control.

    In EU as speed sourse Tachograph is used, it is connected to J1939 and all units get data from Tachograph
     
    Pablo-UA, Apr 4, 2012
    Pablo-UA, Apr 4, 2012
    #9
  12. Apr 5, 2012 #10
    The Bulkmatic Grasshopper

    The Bulkmatic Grasshopper Bobtail Member

    40
    17
    Apr 4, 2012
    Kentucky
    0
    My speedometer and cruise are out, as well. I get no revs past 1500rpm, although torque and power do not seem effected.

    I would have to get both speed sensors replaced? Where, exactly, are the sensors located for each CU?
     
    The Bulkmatic Grasshopper, Apr 5, 2012
    The Bulkmatic Grasshopper, Apr 5, 2012
    #10
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