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Pelican Technical Article:

Vehicle Speed Sensor Replacement

Jared Fenton

Time:

2 hours2 hrs

Tab:

$25

Talent:

****

Tools:

22mm wrenches, small flathead screwdriver, floor jack, jack stands, wheel chocks, safety glasses, torque wrench

Applicable Models:

VW Jetta GL (1998-05)
VW Jetta GLS (1998-05)
VW Jetta GT (1998)
VW Jetta K2 (1998)
VW Jetta Wolfsburg (1998-99)

Parts Required:

Vehicle speed sensor

Hot Tip:

Use two 22mm wrenches to pop the sensor loose from the driveshaft

Performance Gain:

Working speedometer

Complementary Modification:

Replace clutch slave cylinder

The vehicle speed sensor (VSS) is used to provide the speedometer with an impulse signal, assuring that it works correctly. This is done by means of a driveshaft with a gear meshed to the transmission. The VSS translates the speed of the driveshaft to an electrical signal, which then reaches the speedometer.

Replacing the VSS is a bit of a chore, as it requires you to remove the intake airbox, the shift cables and mounting bracket. See our articles on Intake Airbox Removal and Clutch Slave Cylinder Replacement for more information.

The VSS is located at the rear of the transmission, right over the left side axle.
Figure 1

The VSS is located at the rear of the transmission, right over the left side axle. After removing the shift cable bracket, pull the heat shield blanket (green arrow) up and off the VSS.

Press the small tab on the back of the electrical connector (green arrow) and pull it off the VSS.
Figure 2

Press the small tab on the back of the electrical connector (green arrow) and pull it off the VSS. You may find this a little difficult. I had to end up going under the car to reach it.

You'll need two 22mm wrenches to remove the VSS from the driveshaft.
Figure 3

You'll need two 22mm wrenches to remove the VSS from the driveshaft. Loosen the top nut (green arrow) while holding the bottom nut (yellow arrow). Once loose, remove the VSS from the transmission.

With the VSS removed, you can see the square guide pin that fits into the driveshaft (green arrow).
Figure 4

With the VSS removed, you can see the square guide pin that fits into the driveshaft (green arrow). Installing the new VSS is the reverse order of removal.


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Page last updated: Sat 12/3/2016 03:09:49 AM