The Ford Focus serves as a daily driver for many. It’s existed for a few generations and is currently in its fourth. We review the most common 2012 to 2020 Ford Focus problems owners may experience with the third generation.
Ford Focus Problems: 3rd Generation (2012 to 2020)
1. Fuel Tank Purge Valve
Symptoms of a Bad Fuel Tank Purge Valve
- Stalling condition
- Check engine light for code P4150
- Engine shaking or lack of power
Causes of Code P4150
Fuel efficiency problems is a common reason for a stalling condition on the 3rd gen Focus. The fuel tank purge valve is part of the evaporative emission control (EVAP) system and is on the driver side of the engine. This problem will typically happen recently after adding gas to the fuel tank, like 20 miles. The valve can stick in the open or closed position.
How to Fix a Faulty Purge Valve
If the purge valve is stuck open or closed or is defective, replace it.
2. Main Fuse Problems
Symptoms of a Bad Main Fuse
- Stalling and not starting then not starting at all no crank
Causes of Problems with the Main Fuse on the 2012 to 2020 Ford Focus
A 50 amp, high energy fuse that sits between the air filter housing and battery can cause starting problems on the 2012 to 2020 Ford Focus. The two connecting points that should make contact can separate slightly, creating situations where you may or may not be able to start the car.
How to Fix Main Fuse Issues on the 3rd Gen Ford Focus
Check the condition of the battery and the fuse. If these parts are working, there is a fuse to check between the air filter housing and battery. With the air filter housing removed, loosen the bolt and remove and inspect the fuse. The fuse has a nice clear cover, so see if the area is corroded or damaged.
3. Steering Torque Sensor
Symptoms of a Bad Steering Torque Sensor
- Steering wheel shaking or vibrating with no contact
- Takes more strength than usual to turn the steering wheel
- Check engine light for code B2778
Causes of a Bad Steering Torque Sensor
The electronic power assist will have several sensor located inside the steering column, like the torque and steering position sensor. This sensor needs to be able to communicate with the computer so it knows how much pressure is needed to turn the steering wheel.
How to Fix Steering Torque Sensor Problems on the 2012 to 2020 Ford Focus
Replacing the torque sensor can fix this common problem on the 3rd gen Focus. If doing this repair yourself, make sure you have installation instructions and don’t forget to disconnect the battery terminal.
4. Radio Fuse Problems
Symptoms of a Bad Radio Fuse
Causes of a Bad Radio Fuse
Another common problem with the 3rd gen Focus involves the radio. With the key in the ON position, the radio may not work as the buttons fail to command anything.
How to Fix a Bad Radio Fuse
There is a body control module with fuses underneath the dash behind the panel on the passenger side, and fuse 79, 85, and 88 affect radio operation. There are black marks on the control module representing a number that will be in the top right position to its corresponding fuse. For example, Fuse 79 will have a “79” in the top right corner of its 15 amp corresponding fuse to help you identify which fuse is located where.
With the key OFF, pull the fuse and check if it’s blown. Replace the fuse if it is.
5. Bad Ground Straps
Symptoms of Bad Ground Straps
- Transmission shiftability issues
- Problem with the reverse gear
Causes of Problems with the Ground Straps on the 2012 to 2020 Ford Focus
It may feel like the transmission doesn’t know what gear it wants to be in. There may also be an issue with the reverse gear.
How to Fix Bad Ground Straps
Find the battery and follow the negative battery terminal where it connects to the body of the vehicle. There are several other ground straps between the engine and the body of the vehicle.
Disconnect the negative battery terminal and disconnect the cable from the part of the body where the cable connects. The only ground the cable can make in this area is through the mounting bolt threads and the lack of voltage can cause an issue. Clean the area by sanding it clean, and do the same on the backside of the cable where it connects and the forward side where the bolt will be touching against it. Make sure to clean off any corrosion.
3rd Generation Ford Focus Model Years
- 2012 Ford Focus
- 2013 Ford Focus
- 2014 Ford Focus
- 2015 Ford Focus
- 2016 Ford Focus
- 2017 Ford Focus
- 2018 Ford Focus
- 2019 Ford Focus
- 2020 Ford Focus
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