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Chevy S-10
Chevy Blazer S-10

The speedometer started bouncing and the transmission wont up shift could the vehicle speed sensor be bad?

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2005-09-28 02:20:10
2005-09-28 02:20:10

Its hard to say without you posting the year,make,model,engine,etc. But just guessing yes it could. on a lot of newer vehicles, the transmission needs to know how fast the car is going. This is one of 2 things the transmission needs know before it can function properly. The other is engine load.

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If the speedometer needle is going crazy and not working properly, it is probably the speedometer mechanism that needs to be replaced. It could also mean the vehicle is having a transmission slippage problem if the needle is bouncing back and forth.

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Yes it depends what kind of vehicle you drive as to where the fuse is located.

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It is possible. Most new vehicles have a sensor attached to the transmission that tell the speedometer how fast the vehicle is traveling. I suggest checking, or having the sensor checked first.

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Try asking your question again - it makes no sense as presently written. If the vehicle won't start - then it won't run. If it won't run how can the speedometer needle be bouncing? (?????)

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I believe it was 1996 that the Explorers started using an electronic speedometer with a vehicle speed sensor ( VSS ) Since then the Explorers have not had a conventional speedometer cable

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check the Vehicle Speed Sensor on the transmission or possibly the rear axle.

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NO cable. it has a vehicle speed sensor bolted into the transmission. Electronic controlled.

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The vehicle speed signal comes from the transmission output speed sensor.

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The VSS vehicle speed sensor on top of the transmission is faulty.

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The VSS sensor is the vehicle speed sensor and it is located in the transmission. The purpose of it is to operate the speedometer and abs system.

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Depending on the vehicle type it colud be either a broken gear in the transmission, a broken cable or if the vehicle has an eletrical speddometer circiut it could have a bad connection.

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The VSS (Vehicle Speed Sensor) is located on the transmission. If the speedometer is not working, it is rarely the VSS causing the problem. I would first check fuses and the ECU

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No, the wheel speed sensors monitor the wheel speed for the ABS and the TCS. The speed sensor mounted in the transmission monitors the vehicle speed for the speedometer/odometer and transmission controls.

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Its probably the vehicle speed sensor located on the transmission. Mine had that problem

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it usually is the gear in the transmission Could be the vehicle speed sensor.

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A cars speedometer measures speed. A speedometer is a gauge that displays the speed of a vehicle so the driver will know how fast the vehicle is moving.

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Check first the speed sensor or speedometer cable which ever one it has (i dont know the age of the vehicle). Both attach to the transmission at the same place.

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Had the same problem off and on in my 1999 Taurus. The speedometer needs to be replaced. The problem is in the speedometer and not the transmission like I was initially led to believe. My mechanic said it wasn't that big of a repair.Coincidentally, the vehicle speed sensor feeds information to both the speedometer and the transmission....See "Related Questions" below for more

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The speedometer in a car runs based off the speed of the transmission. The gears in the transmission spin at a known rate for the speed the vehicle is traveling at. The faster the gears spin the more the speedometer goes up. If a person replaces stock tires with larger tires, then the tires will spin slower, which will cause the speedometer to read at a value that is less than the actual speed.

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If both the speedometer and the odometer do not work I would suspect the VSS (Vehicle Speed Sensor) located on the tail shaft of the transmission is at fault. If only the speedometer doesn't work it's probably a problem with the dash cluster.

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The purpose is to run the speedometer, and it is on the tailshaft of the transmission/transfer case.

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1. operates the speedometer and odometer. 2. provides vehicle speed information to the engine and transmission controllers.

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Im not sure if your vehicle has a speedometer cable or if its a digital type thing with all wires and an electric motor opperating your SpeedOMeter but if it is a cable driven one, then just disconnect the cable from the speedometer from inside the vehicle... raise the vehicle if needed, I think its easier to get it from top, if the vehicle has the A413 transmission, remove the 10mm bolt holding the Speed Sensor in because the SpeedOMeter cable is running threw the middle if it, it does have a round O Gasket on it so it will be tight removing it, but it will come out with alittle wiggle and install the new the same way as you took it off.


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