Which Ford engines have spark plug problems?

Ford Engines with Spark Plug Problems
Based on the search results, there are several Ford engines that have been known to experience spark plug problems. Here are the key findings:
1. Ford 4.6L, 5.4L, and 6.8L 3V Engines (2004-2007): These engines have a known issue with broken spark plugs. The problem is primarily associated with the OE Motorcraft spark plugs used in these engines. The spark plugs can break off in the cylinder head, causing difficulties during removal. Ford has released technical service bulletins (TSBs) to address the issue and provide recommended removal procedures.
2. Ford 4.6L and 5.4L 2V Engines (1997-2003): While not as common as the issue with 3V engines, some Ford trucks with 4.6L and 5.4L 2V engines have experienced problems with spark plug threads in the aluminum head. It is important to use a torque wrench and avoid using anti-seize. Regularly checking the plugs and following proper torque specifications can help prevent issues.
3. Ford Triton V8 Engines (1997-2004): Late-model Ford trucks, including the F-Series, Expeditions, and Excursions, equipped with 5.4L Triton engines, have been reported to experience spark plug blowouts. This issue may also occur in other V6, V8, and V10 engines in these vehicles. Ford has released a TSB that provides a recommended removal procedure to avoid breaking the plugs or stripping the threads in the cylinder head.
4. Ford Modular Engines with Excessive Carbon Buildup: Various Ford Modular engines, including those used in Ford, Lincoln, and Mercury vehicles during the mid- to late-2000s, have been known to have excessive carbon buildup on the spark plugs. This can lead to difficulties during removal and increase the chances of a plug breaking in the chamber. Some recommendations include performing an engine flush prior to changing the spark plugs and using a tool to remove the tip of the plug from the head before attempting removal .
It’s important to note that Ford has acknowledged these issues and has provided guidance on how to address them through technical service bulletins. If you are experiencing spark plug problems with your Ford engine, it is recommended to consult with a qualified mechanic or refer to the specific TSB for your engine model and year.
I hope this information helps! Let me know if you have any other questions.

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.

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 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.

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 is the Ford spark plug lawsuit?

The class-action lawsuit alleges spark plugs get stuck inside the cylinder heads in Ford and Lincoln vehicles equipped with 5.4-liter 3-valve engines. Owners report that trying to remove the spark plugs often causes the plugs to break off, making it impossible to remove the plugs without the needed tools.

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 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.

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.

Are all 5.4 Triton engines bad?

The Ford 5.4 Triton has proven to be an impressive engine that delivers a good balance of performance and reliability. However, there are certain areas in which it can fall short. One of these areas concerns the timing chain, timing chain tensioner, and cam phasing system.