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You need a mechanic with a high level scan tool to check the Diagnostic Trouble Codes and Live Data. It is probably ABS Sensor related, but should never leave you with no brakes..
First you need to state the vehicle make, model and year. What was the original problem. A good mechanic will mark hoses before disconnecting them. The transmission speed sensor will affect cruise control, not the ABS function. The application of the brake pedal will drop the cruise control, Possible brake light switch problem. Perform an ODII scan for any stored speed sensor faults. Use the OBDII scan as your guide to any repairs, to avoid buying parts you don't need.
If the red brake light and the ABS light are both lit up on the dashboard, do NOT drive the vehicle. It indicates a major malfuntion with the brake system. The red light indicates low brake fluid or the parking brake engaged. The yellow ABS without the red light, indicates a problem the computer found and it disables the ABS system while still having conventional brakes. Since both are lit, it needs the brake system repaired. What you replaced on the rear diff was probably the rear ABS sensor. The vehicle speed sensor for the speedometer should be located on the rear of your transfer case if you have 4WD, or on the rear of the trans if you have 2WD.
the speedo and odometer are both worked from the VSS ( (vehicle speed sensor)
check for the reason of metal on the sensor end
could have an internal problem that is not allowing the shifting down so have the transmission check out bat an accredited transmission shop
you have one on the inside of each wheel.
SECTION 206-09A: Anti-Lock Control
2002 Lincoln LS Workshop Manual
REMOVAL AND INSTALLATION
Front Wheel Speed Sensor
Material
Item
Specification
RTV Silicone Sealant FSTZ-19G204-AB (Canada CXC-114A)
NAVSTR Sealer Removal and Installation
Raise and support the vehicle. For additional information, refer to Section 100-02 .
Position the inner splash shield aside.
Remove the pin-type retainers.
Position the inner splash shield aside.
Disconnect the anti-lock brake sensor electrical connector.
Remove the anti-lock brake sensor harness from the brake hose clips.
Remove the anti-lock brake sensor.
Remove the anti-lock brake sensor clip.
Remove the anti-lock brake sensor.
NOTE: Make sure the anti-lock brake sensor is fully seated before installation of the new clip. To install, reverse the removal procedure.
Apply a 2.5 mm (0.1 in) bead of silicone sealant to the outside diameter of the anti-lock brake sensor.
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Rear Wheel Speed Sensor
Removal and Installation
Raise and support the vehicle. For additional information, refer to Section 100-02 .
Disconnect the rear anti-lock brake sensor electrical connector.
Remove the rear anti-lock brake sensor harness from the control arm clips.
NOTE: Clean off dirt and foreign material that may have collected around the rear anti-lock brake sensor before removal. Remove the rear anti-lock brake sensor.
IT DEPENDS ON THE OPTIONS THAT CAME WITH THE VEHICLE. IF YOU WANT TO FIND OUT IF THEY ALL HAVE ABS THEN LOOK ON THE BACK OF EACH WHEEL FOR A WIRE THAT GOES TO THE CENTER OF THE HUB SOMEWHERE. THAT WIRE GOES TO A RELUCTOR WHEEL THAT MEASURES VEHICLE SPEED AT EACH WHEEL. HOPE THIS HELPS. PLEASE KEEP ME POSTED. THANKS FOR AN HONEST RATING AND FOR USING FIX-YA. GOOD LUCK
This isn't hard to do at all really and should be easy to procure the part from the local parts store. There is only one little screw holding it in
Raise and support vehicle.
NOTE: Clean off dirt and foreign material that may have collected around the rear anti-lock brake sensor before removal. Remove the rear anti-lock brake sensor.
1
Disconnect the rear anti-lock brake sensor electrical connector.
2
Remove the bolt.
3
Remove the rear anti-lock brake sensor.
NOTE: Thoroughly clean the mounting surface. NOTE: Inspect the anti-lock brake sensor O-ring for damage; lightly lubricate the O-ring with axle lubricant. To install, reverse the removal procedure
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