Which Ford engine has spark plug problems?

Ford Engine with Spark Plug Problems
The Ford engines known to have spark plug problems are the 3-valve (3V) modular V-8 or V-10 engines built from 2004 through 2007. These engines include the 4.6L, 5.4L, and 6.8L 3V engines. The issue is related to the OE Motorcraft spark plugs, which are susceptible to breaking or getting stuck in the cylinder head, leading to potential engine damage .
The problem with these spark plugs is attributed to their two-piece metal shell, which is vulnerable to corrosion over time and can break apart upon removal. Ford has acknowledged this issue and issued technical service bulletins (TSBs) with instructions for handling the potential breakage of these spark plugs. It’s recommended to have the plugs changed every 30,000 miles, regardless of what the owner’s manual may say, even if they’re the newer type.
The issue seems to occur most often on engines with lots of low-speed operation and city-type driving. The problem is not always apparent, and there is no clear rhyme or reason as to which engines will have broken plug problems and which will not.
It’s important to note that the spark plug problems are not limited to the 3V engines. There have been reports of spark plug issues in other Ford engines as well, such as the 2-valve and 3-valve engines in the 1997-2003 Ford F150, where the plugs can break or come out due to few spark plug threads in the aluminum head.
In summary, the Ford 3V modular V-8 or V-10 engines built from 2004 through 2007, particularly the 4.6L, 5.4L, and 6.8L engines, are known to have spark plug problems, and it’s advisable to address this issue proactively to avoid potential engine damage.

How often should you change spark plugs on 5.4 Triton?

For Ford F-150 models, spark plugs should be changed or replaced once every 60,000 miles. However, some spark plugs can last longer, sometimes reaching 100,000 miles without going bad. However, preventative maintenance is always better than letting a problem linger and affect your ride’s performance.

What is the Ford class action lawsuit spark plugs?

On June 5, Ford Motor Co. agreed to a $2.2 million spark plug defect class action settlement, resolving claims that their vehicles feature defective spark plugs that were difficult and expensive for consumers to replace.

What year did Ford stop using 2 piece spark plugs?

I did a little research after learning of the two piece Motorcraft spark plugs. Turns out that Ford made changes to the cylinder head in mid year of 2008, and I happen to have a later build (April 2008) with the updated one piece spark plugs.

How often should Ford spark plugs be changed?

every 30,000 miles
Experts generally recommend replacing spark plugs every 30,000 miles for the best results. If one of your Ford spark plugs gets out of whack, it can cause a reduction in gas mileage and engine problems later on. Suddenly, you’ll notice if a spark plug is malfunctioning because you will head to the gas pump more often.

What year Fords have spark plug issues?

Between 2004 and 2007, Ford made several 3-valve engines that had the unfortunate habit of refusing to give up their spark plugs. And you’ve got one of them.

What years did the 5.4 have spark plug problems?

One of the common issues of the modular platform was its tendency to blow out spark plugs. This issue happened the most on the 5.4 Triton from 1997 to 2003. During this era, the motor commonly powered the F-Series pickups, E-Series vans, and the Expeditions/Navigators.

Is the Ford 4.6 v8 a good engine?

Speaking of reliability, the majority of Ford 4.6 engine owners have nothing but good things to say about it. There are multiple reports of cars that hit 300,000 miles without needing a rebuild. High mileage isn’t the only thing these engines are good for.

What Ford motor blows out spark plugs?

Ford 4.6, 5.4 and 6.8 modular engines are prone to spark plugs being blown out of the cylinders due to the aluminum threads failing. If the spark plugs are not tight enough the spark plug vibrates until the aluminum is weakened to a point the spark plug shoots out.

What is the recall on the Ford 5.4 engine?

Recall no. FORD IS RECALLING 605,684 MY 2005-2006 F-150 AND LINCOLN MARK LT VEHICLES EQUIPPED WITH 5.4L 3-VALVE ENGINES. THE BRAKE BOOSTER VACUUM SUPPLY HOSE ATTACHED TO THE INTAKE MANIFOLD FITTING MAY SWELL OVER TIME AND LOSE RETENTION FORCE.

What 5.4 engines to avoid?

The only one to really avoid is the 5.4 3v Triton which was in the F150 from 04-10. The smaller 4.6 Triton doesn’t share any of those issues and, while not as fast, is very reliable. The 97-03 5.4 Triton is the 2v version and does not have cam phasers, nor does it have issues with plugs sticking.