Triton 5.4 FDM Failure SymptomsĪ few symptoms of fuel pump driver module on the 5.4L Triton engine include:įault code P1233 will be a quick and easy way to trace problems to the FDM. At the least you can take a peek at the FDM to check the condition externally. As such, it’s not a bad idea to replace the 5.4 Triton fuel pump driver module as preventative maintenance. It’s also a pretty simple and cheap repair. The new parts mount in the same location, but do not directly contact the 5.4 Triton’s steel frame. When it fails the fuel is typically cut off which can cause the engine to shut down.įortunately, Ford re-designed the part after they realized the problems. Over time, build up enters the fuel pump driver module and causes it to fail. The aluminum module is then subjected to all the elements (water, salt, dirt, etc). Ford placed the driver module towards the rear of the steel frame. 2) 5.4L Triton Fuel Pump Driver Moduleįuel pump driver modules (FDM) are another common failure on the 5.4L Triton. In summary, they’re cheap repairs that most can do at home. A set of Triton 5.4 coils usually comes in around $100-200 and spark plugs are about $50-100 for the set. This is especially true if the current set is old. It might not be required but we always recommend changing all 8 spark plugs or ignition coils together. Spark plugs and ignition coils are easy to change in the driveway – even for less experienced DIY’ers. These are pretty straight-forward repairs on the 5.4L V8. Rough idle, stuttering, and power loss are a few things you may notice when your Ford 5.4 is misfiring. Misfires may also cause a slew of other drivability symptoms. You may be able to pick up on this by pulling the the fault codes. Look out for the following symptoms that may indicate a problem with the spark plugs and/or ignition coils:Īs spark plugs and ignition coils wear down they’ll often cause the engine to begin misfiring. It’s also a good idea to replace the ignition coils every 120,000 miles. 5.4 Triton V8 spark plugs should be changed every 80,000 to 100,000 miles. Otherwise, this is standard maintenance stuff. This can create a bit of a hassle if the spark plugs break off, however it’s still a simple replacement overall. However, the spark plugs are known to sometimes break when removed. The 2-valve Ford 5.4L engine sometimes has issues with spark plugs actually blowing out of the head. We’re mostly including the 5.4 Triton ignition system for another reason. As such, calling them an actual failure may not be totally fair. Of course, spark plugs and ignition coils are also standard wear and tear items. Fortunately, these problems are easy to fix. Problems with spark plugs and ignition coils are common on the 2-valve, 3-valve, and 4-valve 5.4L Triton engines. 1) Ford 5.4 Triton Ignition System Problems Otherwise, we’ll add some notes below as to which problems affect which Ford models. However, we’ll mostly limit this list to common failures across all engine variants. Some of the problems we list may be specific to certain versions of the 5.4L Triton. Most older 5.4L engines up to 2004 use a 2-valve variant while the bulk of engines from 2004 up use the 3-valve variant. Models like the GT500 and Ford GT use a higher performance 4-valve variants of the 5.4 Triton. Nonetheless, the engine powered quite a few flagship cars and trucks from Ford. This isn’t a totally exhaustive list as the Ford 5.4L Triton engine is also in a few other “specialty” cars. Newer 5.4L Triton engines will likely be more reliable – at least in the shorter term. Also, a lot of these 5.4 V8 engines are more than a decade old. Simply because we’re classifying these as common problems does not mean every engine will run into them. It’s important to add a few quick notes for now. We’ll finish off the article with a few thoughts on how reliable the 5.4L Triton engine is. Throughout this article we discuss each of these faults and failures in greater depth. In this article, we will discuss reliability and common problems with the Ford 5.4L Triton V8 engine.Ī few of the most common issues on the Ford 5.4 Triton include: However, no engine is perfect and there aren’t any exceptions here. It’s a solid overall engine and won a handful of Ward’s 10 Best Engine awards. Nonetheless, the performance numbers are impressive for the era the 5.4L engine was released.
Output greatly depends on the year and model. Power comes in at 235-550 horsepower and 330-510 torque. The Ford 5.4 Triton V8 is a long-running engine from 1997 to 2007.
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