NHTSA Complaint #10767507 — 2007 LINCOLN MKX

DRIVING AT 40 MPH ON A FIVE LANE STATE HIGHWAY IN METROPOLITAN AREA. SUDDEN LOSS OF POWER, LOST THROTTLE RESPONSE, DASH SEND ODO DATA ERROR MESSAGE, WITH NO ODOMETER READING, WRENCH SYMBOL. CAR COASTED TO STOP IN LEFT TURN LANE. LOUD CLUCK WHEN ATTEMPTING TO SHIFT TO/FROM PARK, REVERSE, NEUTRAL OR DRIVE. UNABLE TO DRIVE MORE THAN 2 MPH, NO MATTER WHAT THROTTLE POSITION OR GEAR SELECTION. IGNITION AND ENGINE TURN OFF ENGINE CLEARED ERROR CODES, BUT DID NOT RESOLVE ISSUE. MKX COULD NOT BE DRIVEN AND NEEDED TO BE TOWED FOR SERVICE. LATER LEARNED THAT OUTPUT SHAFT SPEED (OSS) SENSOR AND TURBINE SHAFT SPEED (TSS) SENSOR FAILED, WHICH PLACED MKX IN ELECTRONIC STATUS OF A HIGH GEAR, THEREBY NO ACCELERATION OR CONTROL POSSIBLE WITHOUT REPAIR. LATER LEARNED THAT LINCOLN HAS HAD A TECHNICAL SERVICE BULLETIN PUBLISHED THAT DIAGNOSED THIS PROBLEM IN 2007! MULTIPLE COMPLAINTS BY MOTORIST WITH SIMILAR ISSUES WITH WIRING TO OSS/TSS SENSORS. WELL KNOWN PROBLEM TO LINCOLN BUT NO RECALL. SUDDEN LOST OF THROTTLE AT HIGH SPEED IS VERY DANGEROUS. AT HIGHWAY SPEEDS, LACK OF RESPONSE FROM AUTOMOBILE COULD BE FATAL. THIS IS NOT A WEAR PROBLEM, BUT AN INITIAL DESIGN OR PART DESIGN FAILURE. INITIAL SYMPTOMS INCLUDE POOR AUTOMATIC SHIFT AT MIDDLE RANGE SPEEDS. FAILURE OF ELECTRICAL CONNECTION OR SENSORS CAN OCCUR AT ANY ODOMETER READING OR AUTOMOBILE USAGE.