Ford Bronco Engines Failing With Under 10K Miles On The Clock

Off-Road /51 Comments

One new car's engine blew up with less than 1,000 miles on the clock.

TheFord Bronco可能是一个of the hottest off-roaders at the moment, withdemand far exceeding supply. But it seems you might want to rethink your order if you have one coming with the 2.7-liter EcoBoost engine.

A thread concerning the 310-hp 2.7-liter twin-turbo V6 Ecoboost powertrain blowing up first appeared on December 29, 2021. One blown engine is not a cause for concern, as there could be various reasons. But as of April 22, there are reports from 46 different Bronco owners, all complaining about the same engine.

TheBronco6Gforum now has a comprehensive list of failures, including the average mileage at which the engines fail. Rather worryingly, most of the problems are related to dropping a valve, which appears to happen at less than 10,000 miles.

2021-2022 Ford Bronco Front View CarBuzz
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2021-2022 Ford Bronco Side View CarBuzz

Thankfully, for the owners, this means the failure is still within Ford'swarranty period. Ford covers the Bronco with a basic three-year/36,000-mile warranty, a five-year corrosion warranty, a five-year/60,000-mile powertrain warranty, roadside assistance for five years, or 60,000 miles.

"We are aware of a select number of engines with this concern, and we are investigating. If any customers are experiencing issues, they will be covered under the vehicle's 5-year, 60,000-mile powertrain warranty," Ford said toThe Drive.

It seems like Ford is aware of the problem and is likely investigating it. This will result in issuing either a recall or a technical service bulletin.

2021-2022 Ford Bronco 360-Degree View Ford
2021-2022 Ford Bronco Straight-Ahead Angle Ford
2021-2022 Ford Bronco Front Angle View Ford

According to the forum, these problems are only related to thesecond-generation 2.7-liter EcoBoostand not the engines used in Lincolns and other Ford models.

Apparently, the problem stems from a bad batch of valves Ford received from a third-party supplier. A now-deleted account owned by somebody claiming to work at Ford's plant said that the bad batch contained valves with a metal composition that goes brittle due to engine heat. Most of these models were made in April 2021.

The information on the forum does not align with that, however. The failures span from May 2021 to October 2021, and during that time, Ford sold 20,000 Broncos. However, it's not clear how many were 2.7 EcoBoost models.

TheBronco6Gforum is currently asking owners to file complaints with the NHTSA so it can better track the problem and possibly force Ford to do a proper investigation.

2021-2022 Ford Bronco Top View Ford
2021-2022 Ford Bronco Forward View Ford
2021-2022 Ford Bronco Front-End Bumper Ford
Source Credits: The Drive

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