Go Small? Common Problems With the Ford 2.7L EcoBoost V6

The 2.7-liter EcoBoost V6 is the Ford F-150 pickup’s smallest engine option. But it packs a punch. Response, torque, and drivability are all within the range of what you expect “Ford Tough” to mean. But there are problems that have been identified that you really should be aware of.

Is the F-150 2.7-liter EcoBoost V6 a good engine?

Ford F-150 2.7-liter
Ford F-150 2.7-liter EcoBoost V6 | Ford

The twin-turbo 2.7 V6 came on the truck scene in 2015. With between 315 and 335 hp and 350-400 lb-ft of torque, its specs are better than most V8s until recently. The power range is a bit limited, but the better fuel economy and lower price make it a popular option, nonetheless. 

The 2.7 EcoBoost is an offshoot of the similar 3.5-liter V6. Both feature twin turbos and direct fuel injection. The first version of the engine ran between 2015 and 2017 in the F-150, and from 2016 to 2018 in the Lincoln MKX, among other Ford products.

In 2018 the second version of the 2.7-liter was released. Torque was up to 400 lb-ft, and port injection was combined with the direct injection. This helped to fix one of the 2.7-liter’s earlier problems-carbon buildup. Other small changes were also part of the second-gen V6. This version has been in continuous production since then. It is also available in the new Bronco.

What are the three most common EcoBoost V6 problems?

Ford F-150 2.7-liter
Ford F-150 2.7-liter EcoBoost V6 | Ford

Three of the most common problems found in the 3.5-liter are carbon buildup, oil pans leaking, and problems with spark plugs and ignition coils. As noted, the carbon buildup affected the first generation of the engine. However, carbon buildup is a common problem in many engines. 

Engine oil blow-by sticks to intake ports and valves. With the addition of port injection in 2018, this acts as a flushing system to wash those deposits into the cylinder charge. But it can cause issues such as rough idling, misfires, hesitation on startup, and general power loss. While you may notice some of these issues, you may not, as they happen as the miles pile on. So it is gradual. 

F-150 EcoBoost 2.7 oil pan leaks

A blue 2018 Ford F-150 with mountains in the background.
2018 Ford F-150 | Ford

This also mostly affects the first generation of the 2.7-liter EcoBoost engine, mainly because they’re made out of plastic. That’s maybe not the best material for this part. With the constant expansion and contraction of heat cycles, the pan can loosen up. 

In 2018, Ford made a design change that corrects the problem. For what it is, it’s not a deal-breaker. Ford made sure its smaller EcoBoost engine was engineered well, able to take on most pickup truck demands. And it did correct the problem in the 2018 update. 

2.7-liter EcoBoost spark plug and ignition coil issues

2022 Ford F-150 towing a trailer on the highway
2022 Ford F-150 | Ford

How Does the Ford F-150 Annoy Its Owners?

The spark plugs are expected, according to replacement schedules, to last between 80,000 and 100,000 miles. They don’t. So rather than go through performance issues as you approach those figures, schedule spark plug changes earlier. Like, maybe 35,000 miles?

Whether coil packs or plugs, if they are wearing out, you’ll notice misfiring, rough idle, power loss, and the dreaded Check Engine light. If you have a code reader, TuningPro suggests you can pinpoint which cylinder is misfiring. Swap the coil pack with one next to it. If the problem persists, then it is the coil. Otherwise, replace all six plugs. And don’t forget, regular oil changes and monitoring engine functions go a long way toward engine longevity.