America’s best-selling pickup truck is certainly ‘Built Ford Tough.’ But a range of engine problems have been reported over the years.
Introduced in 1975, the Ford F-150 has remained the Ford Motor Company‘s most popular vehicle and America’s best-selling pickup truck since 1977. The F-Series vehicle has become synonymous with the automaker’s iconic “Built Ford Tough” motto and is long respected as a dependable work vehicle. However, the Ford F-150 also has a lengthy history of minor to major problems stemming from its 5.0 engine. Most F-150 models generally last for years, but a wide range of engine problems have been reported over the years.
There have been so many engine complaints since 2004 that the National Highway Traffic Safety Administration had to act to get Ford to resolve them.
Common Problems Found in the F-150 5.0 Engine
Some of the most common issues affecting Ford F-150 trucks include spark plugs breaking, poor fuel economy, persistent engine noises, and engine stalls. To hear the kind of engine problems real-world Ford F-150 owners have experienced with the 5.0 engine, check out this video of an F-150 owner addressing strange noises emitting from his engine.
Check out the five most common issues affecting the F-150 engine below.
Head Gasket Leaks
While a small problem to begin with, this can indicate a much bigger problem waiting in the wings. The main indicator of a leaking head gasket is the smell of burning oil. The good news is that this may be one of the cheapest engine problems you may ever have to deal with, and it’s easily solvable. If you smell burning oil, have a professional mechanic perform a diagnostic on the engine as soon as possible. Catching a problem head gasket leak early could save you money in the long run.
Engine Knocks
Not every strange sound means that your engine is about to fail. Common causes of engine knocks include using lower octane fuel than what’s recommended; carbon buildup inside engine cylinders; improperly installed or faulty spark plugs; faulty fuel injector; and stuck valves that cause issues with the cylinders.
The Ford F-150 5.0 engine knocking issues have tended to be serious enough for Ford to issue a technical service bulletin for its 2018 and 2019 F-150. The Blue Oval claimed the noise is not detrimental to engine function in any way and has no long-term effects on durability. Although Ford has never issued a recall for the 2018 engine, it has acknowledged the problem.
Ford did engage in arbitration with a number of 2018 and 2019 F-150 owners. As a result, Ford bought back trucks from individual owners without acknowledging that there was a problem.
Throttle Body Replacement
While not technically a part of the engine, this affects its performance. Dealers have been instructed to replace electronic throttle bodies to fix the issue in the affected vehicles.
Fuel Injection System
A recurring problem from the 2018 to 2020 model, faulty fuel injection systems have caused a range of issues, including lack of power, stalling, and low fuel rail pressure.
Spark Plug Failure
Model years 2004 through 2008 F-150s experienced many complaints about spark plugs breaking off, leaving what remained jammed in the engine. Much of this occurred due to Ford’s recommendation to change the plugs every 100,000 miles rather than the standard 30,000.
What to Do About an Engine with a History of Complaints
One 2018 model thread on the website F-150 Forum has well over 100 pages of owners’ complaints about the 5.0 liter engine in the 2018 model alone. A common theme is that because engine noise will not disable the engine, Ford considers this to be a minor problem.
One hundred pages of complaints about Ford F-150 5.0 engine problems means they’re not minor.
TruckOmizze recommends knowing which have been the best and worst years for the Ford F-150, so you can know what to look for.
The worst F-150 years, based on total complaints to the National Highway and Traffic Safety Administration, are 2004, 2005, 2006, 2013, 2015, 2016, 2011 2007, 2002 and 2010. The best Ford F-150s were manufactured in 1993, 1994, 1996, 2009, 2012, 2003, 2001, 2014, 2018 and 1998.
Still a Great Truck
There is a good reason the F-150 is America’s bestselling vehicle. It’s stylish, otherwise performs well, and is reliable. With that many vehicles on the road, there are bound to be problems.
However, it you are interested in buying one, you need to be aware of what issues you are likely to face.