2008 Ford Mustang Engine Problems

See attached document for complaint.

NHTSA ID

11689484

Incident

Aug 28, 2025

I have a 2008 Ford Mustang with a V-6 engine. Recently I had to jump start it twice in a week's time to get it started and decided to take it to my dealer to have the battery checked. On the way there, I had to stop for a line of line of traffic at a red light. The instant I applied the brakes the engine started racing. I stood on the brakes as hard as I could, but could not bring the car to a complete stop. I got it slowed down to about three MPH, steered it into a parking lot that was next to me, and shoved it into park. I was afraid to drive it, so I called AAA and had it towed to my dealer. I told them how the engine started to race when I applied the brakes, and that I couldn't bring the car to a complete stop. They wrote it up that the engine started running rough when I applied the brakes. That is not what I told them. They made no written reference to the unintended acceleration. This struck me as odd. Their analysis of the vehicle showed that the master cylinder and brake power booster had failed. They told me that sometimes when these components fail they can cause the engine to rev. My engine more than revved, it sounded like it was racing at full throttle. The incident shook me up quite a bit. It also seemed odd to me that two major brake components would fail at the same time. I had gotten new front and read brake pads earlier in the years and no other brake issues were discovered. Though the car has been repaired and seems to be OK, I'm somewhat skittish about driving it. I'm aware that there was a class action law suit filed against Ford in 2013 for 2002-2010 Ford vehicles claiming unintended acceleration. Though the suit was dismissed, I'm worried that the problem still exists. I know for a fact that my foot was fully on the brake pedal, and that the floor mat played no role in this issue. I had no similar issues with the car in the fifteen years prior.

NHTSA ID

11560593

Incident

Dec 12, 2023

When making a left turn the entire car turns off when using the car all day on hot days

NHTSA ID

11470756

Incident

Jun 23, 2022

TL* THE CONTACT OWNS A 2008 FORD MUSTANG. THE CONTACT STATED THAT WHILE DRIVING 70 MPH, THE ELECTRONIC CONTROL WARNING LIGHT ILLUMINATED. THE CONTACT STATED THAT THE VEHICLE WAS NOT ACCELERATING OR DECELERATING. THE CONTACT STATED THAT THE SPEED REMAINED AT 70 MPH WITH THE RPM EXCEEDING TO 3,000 RPM. THE CONTACT STATED THAT AFTER ARRIVING AT HER DESTINATION, THE VEHICLE WAS TURNED OFF AND RESTARTED AND DROVE AS DESIGNED. THE CONTACT CALLED OXMOOR FORD LINCOLN (100 OXMOOR LN, LOUISVILLE, KY 40222) TO INFORM THE DEALER OF THE FAILURE. THE CONTACT WAS INFORMED TO SCHEDULE AN APPOINTMENT. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 150,000.

NHTSA ID

11377429

Incident

Dec 1, 2020

Mileage

150,000 mi

HARMONIC BALANCER PULLEY SEPARATED FROM HARMONIC BALANCER. CAUSED BELT TO SHRED AND LOSE OF POWER STEERING AND COOLING AND BRAKES.

NHTSA ID

10761907

Incident

Aug 17, 2015

Mileage

75,689 mi

I WAS PARTICIPATING IN A COMMUNITY PARADE, WITH LOTS OF CHILDREN, I WAS MOVING SLOWLY WHEN THE CAR SUDDENLY ACCELERATED DURING TWO OCCASIONS. I WAS ABLE TO STOP THE CAR WITH THE BRAKE THE FIRST TIME AND WITH THE BRAKE AND SHIFTING TO NEUTRAL THE SECOND TIME. THE VEHICLE WAS DECARBONIZED AND REPROGRAMMED BY THE DEALER WITH NO GUARANTEE THAT THE PROBLEM WAS FIXED. FORD STARTED A CASE FILE: CAS-7491264 ON THE INCIDENT.

NHTSA ID

10733728

Incident

Jul 5, 2015

Mileage

27,000 mi

WHEN ACCELERATING THE CAR WENT INTO LIMP MODE WHILE MERGING INTO TRAFFIC. THE MERGE IS RIGHT BEFORE A BRIDGE SO I HAD TO CREEP ACROSS UNTIL I WAS ABLE TO PULL OFF THE SIDE OF THE ROAD. ENGINE DID NOT STALL BUT THERE WAS NO CONTROL IN THE GAS PEDAL. HAPPENED AGAIN EXACTLY ONE WEEK LATER. THANKFULLY TRAFFIC WAS ABLE TO PASS ME AND NOT REAR-END ME SINCE CAR SPEED DROPPED QUICKLY. THROTTLE BODY IS BEING REPLACED TODAY. *TT

NHTSA ID

10537680

Incident

Aug 19, 2013

Mileage

68,000 mi

TL*THE CONTACT OWNS A 2008 FORD MUSTANG. WHILE DRIVING APPROXIMATELY 10 MPH HE HEARD A BANGING NOISE IN THE REAR OF THE VEHICLE. THE VEHICLE WAS DRIVEN ONTO THE EMERGENCY LANE WHERE HE NOTICED AN OBJECT LAYING IN THE ROAD. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THE OBJECT WAS PART OF THE EXHAUST SYSTEM. THE VEHICLE WAS BEING REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 33,300.

NHTSA ID

10362385

Incident

Oct 24, 2010

Mileage

33,300 mi