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5.0

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
20,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2018 Ford Fiesta engine problems

engine problem

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2018 Ford Fiesta Owner Comments

problem #5

May 042024

Fiesta

  • miles

A D V E R T I S E M E N T S

My engine is acting up. According to the Auto Repair Shop they say that my car is suffering from Carbon Build Up which is affecting my engine. As well as the throttle body in the car. My car just keeps stopping to the point my engine refuses to start. So I decided to clean it myself only to no avail.

- Bay Point, CA, USA

problem #4

Dec 152018

Fiesta

  • 20,000 miles
The contact owns a 2018 Ford Fiesta. The contact stated after refueling the vehicle, the vehicle would stall while at a complete stop. The contact would restart the vehicle and continue to drive. The contact stated that the failure had been reoccurring increasingly and had worsened. The contact stated that the vehicle would only start after several attempts and would only gain motive power after depressing the accelerator pedal several times. The check engine warning light was illuminated. The vehicle was taken to the dealer several times where it was diagnosed that the canister purge valve needed to be replaced. The canister purge valve was replaced three times. The vehicle was repaired. The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 20,000. The VIN was invalid.

- Martinsburg, WV, USA

problem #3

Nov 012020

Fiesta

  • miles
Several problems one the car vent system actuator failing to open vent making crackling noise, second problem water coolant container lines start leaking failing causing engine to burn up cheap plastic connections failing no water lines should at the container other than refill poor engineering need harder inspectors

- San Antonio, TX, USA

problem #2

Jun 202019

Fiesta 4-cyl

  • 10,000 miles
Car shudders upon acceleration from standstill. Loses power severely going uphill. Engine/transmission shakes shudders engine races and quickly accelerates after loss of power then decreases again. When moving from stop car shudders makes a grinding noise and then slowly accelerates before decreasing RPM and then races again.

- Mountain Top, PA, USA

problem #1

Aug 012019

Fiesta 4-cyl

  • 70,000 miles
While driving the automatic transmission shutters when going into second gear and stalls before accelerating. Some times the car won't start and it's not related to the battery or the starter. It also had a purge valve replacement three months after purchase. A few months later I had to replace it again this time it wasn't under warranty. I purchased this car brand new in 2018 and it had all these issues in 2018 and October of 2019 is when the transmission began to shutter.

- Washington, DC, USA

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