My truck has selectable drive modes. These drive modes control steering effort, suspension, shift points, the four-wheel drive system, ABS, and exhaust. My truck changes drive modes on its own without any input. Going down the highway, my truck is tried to go into rock crawl modes several times. If this happens, my truck will go into four low and the components above will be affected. A cursory Google search leads to a forum where 10 pages of people have reported this problem. It is scary to think that my truck has the potential to change drive modes on its own. This could lead to loss of steering control, sudden acceleration, or a locked differential can make me lose control of the vehicle. Here is the page referenced above: [XXX] Despite having an effect on the powertrain, Ford does not consider this to be covered under the 36,000 mile powertrain warranty, of which my vehicle is beyond. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Ford Ranger sudden acceleration problems
85 of the 8,202 owner complaints about the Ford Ranger describe sudden unintended acceleration, most of them for the 2003 model year.
- owner complaints
- 85
- worst model year
- 2003
- typical mileage
- 45,000
By model year
Often reported together
Adaptive cruise 6Hesitation 4Grinding brakes 4No deployment 4Stalling 3Jerking 3Harsh shifting 3Slipping 2
What owners say
My 2019 Ford Ranger with 10 speed transmission has been harsh shifting and will not always find the right gears. It will sometimes Surge forward or at other time not respond to acceleration. It has 100,000 miles. Never used it for towing or hawling heavy items.
During low speed driving, mainly stop and go traffic the truck will randomly lunge forward when the brake pedal is engaged. It happens when accelerating and the truck will shift in to second gear, then if you apply the brake the truck will act like it is going to stall, the engine rpm will spike and the truck will launch forward. If you dont force the brake pedal to the floor, the truck will continue to accelerate, potentially slamming into another vehicle. This has happened multiple times, the dealer has rebuilt the transmission and that fixed the issue for the last 6-8k miles. the issue has returned and the truck is back at the dealership for diagnostics. This is becoming a serious safety concern and the potential that someone gets hurt grows every day. I have seen other complaints on the internet about this same issue in trucks with the same transmission.
Since owning the vehicle, I have experienced a range of serious transmission issues. These include harsh or delayed gear shifts, inconsistent downshifts, and transmission slipping. The vehicle also frequently jerks or lurches during gear changes. Of particular concern is the vehicle’s behavior during downshifting. At times, the transmission downshifts abruptly and causes the vehicle to lunge forward unexpectedly. This unpredictable behavior presents a significant safety concern, particularly in traffic situations where smooth and predictable vehicle response is essential. These transmission issues negatively affect the safety, drivability, and reliability of the vehicle and are not consistent with normal operation.
I washed the truck and sprayed the undercarriage. I drove it about 5 miles home without any issues. I stopped at the bottom of my driveway to get the mail.My driveway is about 150’ long and has a moderate up hill grade. At the top of the driveway I had to turn left to pull into the garage.I also had to stop to open the garage door. I don’t have a garage door opener. As I started turning left the truck suddenly lunged forward as if it was floored.I had been approaching the garage very slow knowing that I had to stop to manually open the door. I was unable to stop, drove through the door taking down both garage doors and the pillar between them. I have lived here for 35 years I have pulled in and out of this garage literally thousands of times without incident.The pedals were not obstructed by anything, and I’m positive I applied the brakes and not the accelerator. There is a lot of damage to the house, truck, a new motorcycle and a large commercial type lawnmower. As bad as this is I know it could have been worse.If this had happened in traffic or around pedestrians I hate to imagine what might have happened. I was only able to find 2 other people on the internet who said they had a similar experience with the same model and year truck. If the dealership cannot find or diagnose what happened, I will not feel safe driving this vehicle.
The contact owns a 2019 Ford Ranger. The contact stated while driving 10 MPH in the driveway and depressing the brake pedal to make a turn, the vehicle lunged forward and accelerated unintendedly. The contact stated that upon depressing the brake pedal, the vehicle failed to respond. The contact continuously depressed the brake pedal until the vehicle responded as needed. There was no warning light illuminated. The dealer was notified of the failure and informed the contact that the VIN was not included in a related recall. The contact stated while her husband was in the process of parking the vehicle in the driveway, the contact's husband depressed the accelerator pedal to drive forward, and the failure recurred, causing the vehicle to crash into two other unoccupied vehicles that were parked in the driveway. The air bags did not deploy. There was no injury sustained. No police report was filed. There was no property damage. The dealer was notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 11,055.
The ten-speed transmission "10R80" has Rough and harsh shifting, "upshifts and downshifts," which sometimes causes the vehicle to lunge forward unexpectedly. The dealer has reprogrammed the transmission twice with no change.
Five separate incidents where the truck suddenly accelerated to 4500 rpm while in drive. Usually at low speeds. Last incident occurred in driveway where the truck left skid marks on the pavers.
There is insufficient shielding to prevent water from reaching the top of the engine. This results in water dripping on the coil packs and also entering the spark plug wells, causing loss of spark and reduced engine output. Over time, this issue also leads to rust in the engine head, potentially resulting in engine failure. Additionally, water can reach the EGR DPFE sensor, causing the engine to hesitate and shutter at various speeds. Both of these issues together cause a misfire when applying the accelerator and will cause the vehicle to initially hesitate then surge forward. Even with the engine cover, the venting at the base of the windshield allows water to drip down on the engine head, causing the above issues. Ford does recognize that there is an issue and have written several TSBs on the it.
The contact owns a 2019 Ford Ranger. The contact stated that while driving at approximately 35 MPH, the vehicle lunged forward while shifting gear. There were no warning lights illuminated. The contact called the local dealer and scheduled an appointment. The vehicle was not yet diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 26,800.
Related recalls
Vehicle speed control
- What is wrong
- Ford is recalling model years 1995-2003 windstar, 2000-2003 excursion diesel, 1993-1997 and 1999-2003 f-250 sd through f-550 sd diesel, 1992-2003 e-150 through e-550, 1995-2002 explorer, 1997 and 2002 mercury mountaineer, 1995-1997 and 2001-2003 ranger, and 1994 f53 vehicles equipped with the texas instruments speed control deactivation switch (scds). The scds may leak internally and then overheat, smoke, or burn.
- Risk
- A vehicle fire could occur with or without the engine running.
- Remedy
- Ford will notify owners that dealers will install a fused wiring harness in line with the scds. On 1999-2003 windstar vehicles with a leaking scds, dealers will also inspect the ABS control module connector and repair as necessary. Repairs will be completed free of charge. The safety recall began on october 27, 2009. Owners may contact ford at 1‑888‑222‑2751.
Recall number 09V399000 · Recall details
Vehicle speed control
- What is wrong
- On certain pickup trucks, passenger vehicles, sport utility vehicles, and motor homes chassis, the speed control deactivation switch may, under certain conditions, leak internally and then overheat, smoke, or burn.
- Risk
- This could result in an underhood fire.
- Remedy
- Dealers will install a fused wiring harness. Owners of the passenger cars included in this campaign will be instructed to return their vehicles to their dealers to have the speed control deactivation switch disconnected as an interim repair. As soon as repair parts are available (expected october 2007), owners will be instructed to return to the dealers for installation of a fused wiring harness. The recall began on august 13, 2007, and mailing completed by september 19, 2007. Owners may contact ford at 1‑888‑222‑2751.
Recall number 07V336000 · Recall details
Vehicle speed control
- What is wrong
- Vehicle description: certain 1997-1999 rhd explorer equipped with 4.0l ohv/sohc engines and cruise control built from may 29, 1996 through march 4, 1999; 1998-1999 explorer/mountaineers equipped with 4.0l ohv/sohc or 5.0l engines or 1998-1999 rangers equipped with 2.5l, 3.0l ffv/efi or 4.0l engines and cruise control built from january 5, 1998 through march 4, 1999; 1998-1999 mustangs equipped with 3.8l, 4.6l 2-valve or 4-valve engines and cruise control built from march 2, 1998 through march 4, 1999; 1999 f250/f350/f450/f550 (over 8,500 lbs.) trucks equipped with 5.4l or 6.8l engines and cruise control built from march 2, 1998 through march 4, 1999; and 1999 f-53 stripped chassis equipped with 5.4l or 6.8l engines and cruise control built from march 2, 1998 through march 4, 1999. A cruise control cable can interfere with the speed control servo pulley and not allow the throttle to return to idle when disengaging the cruise control.
- Risk
- If the cruise control is used and this condition is present, a stuck throttle could result, which could potentially result in a crash.
- Remedy
- Dealers will replace the cruise control cables. At the present time, the replacement cables are not available. Customers are being advised not to use the cruise control system until a replacement can be made.
Recall number 99V062001 · Recall details
Vehicle speed control
- What is wrong
- During extreme cold, northern climate winter conditions, ice can form in the throttle body of the engine causing the throttle plate to remain in the highway cruising position after the accelerator is released or the speed control is deactivated.
- Risk
- The vehicle stopping distances can be increased possibly resulting in an accident.
- Remedy
- Dealers will replace the air intake duct and valve assembly with revised units.
Recall number 95V231001 · Recall details
Vehicle speed control
- What is wrong
- Throttle lever may contact throttle body air inlet tube, with potential for throttle remaining open following release of the accelerator pedal.
- Risk
- Uncontrolled acceleration could create lack of controland cause an accident.
- Remedy
- Manufacturer will replace air inlet tube with newly designed replacement.
Recall number 90V044000 · Recall details
Vehicle speed control
- What is wrong
- Throttle lever may contact throttle body air inlet tube, with the potential for throttle remaining open following release of the accelerator pedal from the full-throttle postion in trucks with 4.0 l engines.
- Risk
- Uncontrolled acceleration could create lack of controland cause an accident.
- Remedy
- Manufacturer will replace air inlet tube with newly designed replacement with an increased throttle lever-to-inlet tube clearance.
Recall number 89V234000 · Recall details
Questions about the Ford Ranger sudden acceleration
Which Ford Ranger years have sudden unintended acceleration problems?
The model years with the most reports are 2003 (12 complaints), 2019 (12 complaints) and 2002 (8 complaints).
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