Where the f--- is the vss switch in a 99 merc sable ls thanks joey

OD servo / solenoid problem
run the fault codes to determine why as it could be TR sensor /r TCM problem or problem VSS unit

fluid level?

1997 Mercury Sable LS VSS Vehicle Control Sensor ...

? 2:13
www.youtube.com/watch?v=1O0kJJjjhk0
Jun 1, 2012 - Uploaded by Trevor Harris
I am trying to replace my Vehicle Control Sensor on my 1997Mercury Sable LS 3.0 Liter. Here's the ...

Taking a wild guess here but could be a theft system problem.

It sounds like you may have a defective ignition starter switch. It is located near the bottom top of the steering column under the dash.

None

No Sensors for the Starting System

Vehicle Speed Sensor (VSS) Removal

1. Raise and suitably support vehicle.
   

1. Remove dual converter Y-pipe from exhaust system. -
   
2. Remove heat shield from transaxle.
   

1. Disconnect vehicle speed sensor (VSS) electrical connector.
   

1. Remove VSS retaining bolt and remove VSS from transaxle.
   

Installation

1. Follow removal procedure in reverse order.
   

1. Tighten VSS retaining bolt to 5-8 Nm (45-70 lb-in).
   
   
   
   

the numbers are on the keyless module in the trunk, it is a paper tag

put some dry gas in the gas tank and fill up with gas and if there is a place where you can get the car warm this will help also