4 complaints reported

2009 Ford Mustang Power Train

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
4
Crashes
0
Fires
0
Injuries
0

Complaint Timeline

Chronological view of owner reports

Apr 2019

SERVO ON TRANSMISSION PUSHED SNAP OUT OF RETAINING GROOVE CAUSING LOSS OF TRANSMISSION FLUID WHILE DRIVING AT SPEED.SERVO PUSHED OUT OF TRANS,CAR ACTED LIKE IT WAS IN NEUTRAL THAN LURCHED AHEAD ALMOST CAUSED AN ACCIDENT.

Type: Vehicle, Vehicle: 2009 FORD MUSTANG, Manufacturer: Ford Motor Company
Incident: Oct 2019
May 2017

THE REAR DIFFERENTIAL ON MY CAR WAS LEAKING FLUID WITH LESS THAN 30,000 MILES ON THE CAR. THE 3 YEAR/36,000 MILE WARRANTY HAD EXPIRED SO I INSPECTED IT MYSELF.WHEN I REMOVED THE FILL PLUG IN THE REAREND I HEARD PRESSURE ESCAPE.THAT TOLD ME THE PRESSURE RELIEVE VALVE IN THE REAREND WAS DEFECTIVE.BUT BECAUSE OF THAT MY SEALS NEED TO BE REPLACED IN MY REAR DIFFERENTIAL NOW.AFTER TALKING TO OTHER MUSTANG OWNERS I HAVE BEEN TOLD THIS IS A COMMON AND EXPENSIVE AND DANGEROUS PROBLEM.THIS COULD CAUSE FLUID TO LEAK ONTO REAR BRAKES OR EVEN WORSE TO MUCH FLUID LOSE WOULD CAUSE THE REAR DIFFERENTIAL TO LOCK UP AND CAUSE A ACCIDENT.I MODIFIED THE RELIEF VALVE TO FIX THE PRESSURE BUILD UP PROBLEM.BUT NOW NEED TO HAVE THE SEALS REPLACED WHICH IS A EXPENSIVE REPAIR.I RARELY DRIVE MY CAR AND IT IS ALWAYS GARAGED.THAT IS HOW I NOTICED IT WAS LEAKING AFTER SEEING A PUDDLE ON THE FLOOR.I ALSO KNOW THIS IS A COMMON PROBLEM ON THAT YEAR MUSTANG BECAUSE I'VE SEEN ON AUTOMOTIVE BLOGS ON THIS PROBLEM AND THEY RECOMMEND BUYING A AFTERMARKET RELIEF VALVE BEFORE THIS PROBLEM HAPPENS.IT ISN'T LIKE MY CAR WAS DRIVEN IN HARSH CONDITIONS OR EVEN DRIVEN DAILY. I FIXED THE RELIEF VALVE MYSELF AND HAVE NOT HAD THE DAMAGED SEAL REPLACED YET,BECAUSE I WAS GOING TO HAVE IT DONE WHEN THEY REPLACED THE RECALLED AIRBAGS. EVERY TIME I TRY TO SET UP A APPOINTMENT THEY SAY THE STILL DON'T HAVE THE REPLACEMENT AIRBAGS IN STOCK. I RARELY DRIVE THE CAR NOW BECAUSE OF THE ISSUES AND MAYBE DRIVEN THE CAR A FEW TIMES IN THE PAST 2 YEARS. I BELIEVE THIS IS A COMMON PROBLEM ON THE 2005-2009 FORD MUSTANG AND FORD SHOULD REPAIR AND REPLACE ANY PARTS DAMAGED BY THIS ISSUE.THE RELIEF VALVE IS ONLY A 10-15 DOLLAR PART BUT IT'S FAILURE CAN CAUSE THOUSANDS OF DOLLARS IN DAMAGE AND ALSO A DEADLY CRASH.

Type: Vehicle, Vehicle: 2009 FORD MUSTANG, Manufacturer: Ford Motor Company
Incident: Jan 2016
Jan 2010

CLUTCH FAILURE ON MY 2009 FORD MUSTANG GT500 - AT 18,000 MILES THE CLUTCH BEGAN TO SLIP WHILE IN HEAVY TRAFFIC. I TOOK THE CAR TO M PURCHASING DEALER AND REQUESTED A DIAGNOSTIC, THEY INDEED CONFIRMED THAT THE CAR EXHIBITED THE PROBLEM BUT INFORMED ME THAT IT WAS A WEAR ITEM WITH ONLY A 12 MS/12K WARRANTY. FORD HAS ISSUED A TSB ON THE CLUTCH AND ITS FLYWHEEL INDICATING THAT HEAVY STOP AND GO TRAFFIC WILL WARP THE FLYWHEEL AND IN TURN RUIN THE CLUTCH AND TRANSMISSION. FORD DID NOTHING TO FIX THE PROBLEM (IDENTIFIED IN THE TSB,NHTSA 10032615 - TSB-09-19-11). *TR

Type: Vehicle, Vehicle: 2009 FORD MUSTANG, Manufacturer: Ford Motor Company
Incident: Oct 2010
Nov 2009

I HAVE A FORD MUSTANG 2009 V-6, I WAS IN 2ND GEAR ACCELERATING TO PASS SOMEONE, AND GAS PEDAL STUCK TO FLOOR,COULD NOT DO ANYTHING, PUT IT IN NEUTRAL, STILL DID IT. I FINALLY TURNED ENGINE OFF AND EVERYTHING WAS OK. SCARED ME, I AM AFRAID TO DRIVE THE CAR. CALL DEALERSHIP, SAYS IT DOES NOT KNOW WHY. *TR

Type: Vehicle, Vehicle: 2009 FORD MUSTANG, Manufacturer: Ford Motor Company
Incident: Nov 2009

Trend Over Time

Complaints by year

Quick Summary

The 2009 Ford Mustang has 4 Power Train complaints on file. Review the timeline above for detailed owner experiences.