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2001 Aztek speedometer jumping and going crazy- video posted

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Old 05-03-2011, 12:25 PM
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Any help would be appreciated. Last night the speedometer started jumping from 10-50mph as I drove. Sort of dancing around the dial.
After a while the trans started to shift erratically (assuming because the computer thought I was going erratic speeds).

I took a video of what is going onů.anyone know what the problem may be? Thanks guys!

http://www.youtube.com/watch?v=Ay4F7N9jpPw

Around 20 seconds in its starts.
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Old 05-03-2011, 04:15 PM
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i cant you tube but if nothing else on the dash is bouncing its likely the vss (attached to the trans) or connection
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Old 05-03-2011, 10:56 PM
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First off, it probably wouldn't be a bad idea to enlighten us at to the year of this Aztek (a sig is a wonderful thing). I also recommend having it plugged in to a computer and officially diagnosed. Either there is an issue with the gauge itself, or, more likely given the other vehicle issues, the vehicle speed sensor or associated wiring. You also may wish to check cruise control to see what it is doing when the symptoms are being displayed.
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Old 11-29-2011, 12:40 PM
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Originally Posted by usacamaro View Post
Any help would be appreciated. Last night the speedometer started jumping from 10-50mph as I drove. Sort of dancing around the dial.
After a while the trans started to shift erratically (assuming because the computer thought I was going erratic speeds).

I took a video of what is going onů.anyone know what the problem may be? Thanks guys!

http://www.youtube.com/watch?v=Ay4F7N9jpPw

Around 20 seconds in its starts.
My 01 Aztek started doing this same thing 2 days ago. Did you ever find out what the problem was?
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Old 11-29-2011, 12:56 PM
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Originally Posted by Monique View Post
My 01 Aztek started doing this same thing 2 days ago. Did you ever find out what the problem was?
yes, it was the speed sensor. it was loose. all you have to do it wiggle it back in to the harness.
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Old 11-29-2011, 01:01 PM
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Originally Posted by usacamaro View Post
yes, it was the speed sensor. it was loose. all you have to do it wiggle it back in to the harness.
Where is the speed sensor located? Is that the things located in the wheel hub?
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Old 11-29-2011, 01:07 PM
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yes, it was on the hub. i forgot where exactly. i would just make sure everything is connected on booth wheels
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Old 11-29-2011, 01:21 PM
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Thank you for your help!
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