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  1. 04-09-2011, 12:05 PM #1
    Promise517
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    Speedometer stop working

    Anyone know where it is? Is there a fuse? Thanks in advance.

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  2. 04-09-2011, 06:00 PM #2
    Cutlass
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    no fuse specifically for the speedo. You might have a problem with the vehicle speed sensor or its wiring. Any recent work done that might have affected that stuff??
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  3. 04-10-2011, 06:08 AM #3
    Promise517
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    Quote Originally Posted by Cutlass View Post
    no fuse specifically for the speedo. You might have a problem with the vehicle speed sensor or its wiring. Any recent work done that might have affected that stuff??
    Nothing that I know of that should effect the speedo. I just had my horns and catalytic converters replaced. You know where the sensor is located?

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  4. 04-10-2011, 01:38 PM #4
    Cutlass
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    The vehicle speed is located in the tailshaft housing on the transmission.
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  5. 04-10-2011, 07:47 PM #5
    tripps
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    check if the sensor got disconnected from the tranny...i disconnected it once from a camaro i had once and forgot to connect it and the speedometer would work till i connected it back
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  6. 04-10-2011, 07:51 PM #6
    Ls1_385hp_T/A
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    Most likely a wheel speed sensor from the driver's side rear. Same deal happened to my BMW a couple months ago. Does the speedometer just not work completely or does it randomly do that at times?
    Last edited by Ls1_385hp_T/A; 04-10-2011 at 09:46 PM.
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  7. 04-11-2011, 07:42 AM #7
    Promise517
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    Quote Originally Posted by Ls1_385hp_T/A View Post
    Most likely a wheel speed sensor from the driver's side rear. Same deal happened to my BMW a couple months ago. Does the speedometer just not work completely or does it randomly do that at times?
    Its random, happen 3xs so far. Then out of nowhere it starts reading my speed again

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  8. 04-11-2011, 08:46 AM #8
    Ls1_385hp_T/A
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    Quote Originally Posted by Promise517 View Post
    Its random, happen 3xs so far. Then out of nowhere it starts reading my speed again

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    Same with mine. Its nothing major, could just be dirty from brake dust etc ..take it out, clean it off and check for damage along the wire ..then put back in and see if that fixes it. If not just replace it about $70 for the part
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  9. 04-11-2011, 08:49 AM #9
    Smittro
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    Quote Originally Posted by Ls1_385hp_T/A View Post
    Most likely a wheel speed sensor from the driver's side rear. Same deal happened to my BMW a couple months ago. Does the speedometer just not work completely or does it randomly do that at times?
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  10. 04-11-2011, 12:07 PM #10
    Joshz400_03
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    Check the sensors.
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  11. 04-11-2011, 02:14 PM #11
    Smittro
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    Quote Originally Posted by Ls1_385hp_T/A View Post
    Most likely a wheel speed sensor from the driver's side rear. Same deal happened to my BMW a couple months ago. Does the speedometer just not work completely or does it randomly do that at times?
    Quote Originally Posted by Smittro View Post
    Quote Originally Posted by Joshz400_03 View Post
    Check the sensors.
    Except F-bodies do not have speed sensors in the wheels, and the ABS sensors that are there have nothing to do with the speedo..


    OP....

    Do as Cutlass suggests and check the actual speed sensor in the tail shaft housing of your trany.. good luck
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  12. 04-11-2011, 02:18 PM #12
    Promise517
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    Quote Originally Posted by Smittro View Post
    Except F-bodies do not have speed sensors in the wheels, and the ABS sensors that are there have nothing to do with the speedo..


    OP....

    Do as Cutlass suggests and check the actual speed sensor in the tail shaft housing of your trany.. good luck
    Will do on Wednesday thanks everyone for chiming in.

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  13. 04-11-2011, 04:12 PM #13
    Ls1_385hp_T/A
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    Quote Originally Posted by Smittro View Post
    Except F-bodies do not have speed sensors in the wheels, and the ABS sensors that are there have nothing to do with the speedo..


    OP....

    Do as Cutlass suggests and check the actual speed sensor in the tail shaft housing of your trany.. good luck
    I guess I misinformed with the location since all I knew was the BMW's ...but it is for sure the speed sensor. My bad!
    Last edited by Ls1_385hp_T/A; 04-11-2011 at 04:17 PM.
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  14. 04-11-2011, 04:45 PM #14
    mbrownin
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    Quote Originally Posted by Smittro View Post
    Except F-bodies do not have speed sensors in the wheels, and the ABS sensors that are there have nothing to do with the speedo..


    OP....

    Do as Cutlass suggests and check the actual speed sensor in the tail shaft housing of your trany.. good luck

    How does the ABS system know when the real wheels are spinning at a different rate than the front wheels?
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  15. 04-11-2011, 04:55 PM #15
    mbrownin
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    Quote Originally Posted by Smittro View Post
    No, they are hall sensors they detect spin and lockup..
    What's a hall sensor?
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  16. 04-11-2011, 04:57 PM #16
    Smittro
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    No, they are hall sensors they detect lockup through gaps in the reluctor rings....
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  17. 04-11-2011, 04:57 PM #17
    35th-ANV-SS
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    Quote Originally Posted by mbrownin View Post
    How does the ABS system know when the real wheels are spinning at a different rate than the front wheels?
    There is a wheel speed sensor mounted to the backside of the backing place that reads the rotation of the reluctor ring that is pressed onto the end of the axle. This signal is then fed to the computer. At least this is how it works on 4 channel vehicles.

    3 channel rear ends the sensor is on the pumpkin.

    This has nothing to do with the speedometer though, as mentioned.
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  18. 04-11-2011, 04:58 PM #18
    Smittro
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    Quote Originally Posted by mbrownin View Post
    What's a hall sensor?
    It transmits a magentic field across two points with the gaps in the reluctor passing between the two points..
    Last edited by Smittro; 04-11-2011 at 05:00 PM.
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  19. 04-11-2011, 05:19 PM #19
    Smittro
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    Quote Originally Posted by 35th-ANV-SS View Post
    There is a wheel speed sensor mounted to the backside of the backing place that reads the rotation of the reluctor ring that is pressed onto the end of the axle. This signal is then fed to the computer. At least this is how it works on 4 channel vehicles.

    3 channel rear ends the sensor is on the pumpkin.

    This has nothing to do with the speedometer though, as mentioned.
    I stand corrected they are called "speed sensors".. Though they have nothing to do with the speedo..
    Last edited by Smittro; 04-11-2011 at 05:24 PM.
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