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How to Fix Your Own Ford 5.8 Engine Problems

If you have experience working on cars and have a basic understanding of mechanics, you can fix your own Ford 5.8L engine problems. While a car engine is made to run for years, it is still subject to mechanical defects. Regular maintenance is essential for your car’s engine to run smoothly and reliably. Following a few basic steps will help keep your engine healthy and fix engine problems quickly. Here are a few simple tips for maintaining your Ford 5.8 engine.


There are a number of problems with the 5.8 liter V8 engine and one of them is corrosion. Corrosion is a common problem with this engine, and Ford has recalled 874,000 vehicles for the problem in North America. The recall affects 410,289 vehicles in the United States and 463,793 in Canada. The reference number for this recall is 18S45.

Oil leaks

If you’ve had trouble with oil leaks on your Ford 5.8 engine, you are probably wondering how to fix them yourself. There are several common problems with these engines. One of the most common is the failure of the exhaust manifold. If the oil level has fallen below the specified level, you may need to replace the head. Luckily, Ford has issued specialized tools that make this job much easier.

The faulty engine block can cause other problems, such as malfunctioning circuitry. Check the clutch and brake pedals, as well as the gearshift. If you notice any of these symptoms, it’s time to call a mechanic. The leaking oil will require replacement of the timing cover gasket, so get it checked by a professional. Another common problem is leaking coolant. A mechanic will be able to diagnose and fix these problems.

The 5.4L engine is a 3-valve version of the 4.6L engine. It is known to be expensive to repair, but it was one of the most reliable Ford engines for over four decades. It produced a powerful 250 horsepower and was a huge hit in the 1960s. While there were some problems with the engine, it was still praised by many owners. However, it wasn’t always 100% fault-free, so it’s important to find the right repair for your engine.

If the car is showing a low oil warning light, then the cause of the problem is likely a leak from the rear main seal. It is important to check all components. The gasket replacement will be simple and inexpensive, while the seal replacement will be more expensive and more time-consuming. Either way, it will require a lot of oil and time to repair. It is important to note that a replacement of the gasket isn’t a substitute for having your car checked by a professional.

Variable cam timing phaser failure

If you have a Ford 5.8 engine, the most likely cause is a variable cam timing phaser failure. This engine problem can be easily solved, but it may also be preventable. For example, you can replace the camshaft phaser in your car if you notice any of these symptoms: low oil pressure, cracked valve cover, and lack of power. A faulty cam phaser can cause exhaust or intake valve failure. To repair it yourself, first remove the air intake tube from the engine. Next, remove the steering bracket and the power train control module. Lastly, check the wiring and other components.

While there are some symptoms of a damaged phaser, most commonly, the most obvious one is a loud knocking noise. A worn phaser will also make the engine run rough. A worn-out phaser will produce a knocking noise and may even lead to low oil pressure. A cracked valve cover can also be a sign that the variable cam timing phaser is worn out.

One problem with the Ford cam phaser is that it is susceptible to premature wear. This can result in valve timing issues, which in turn can lead to engine damage. If you need to replace a cam phaser, follow the steps outlined in this article. This will be necessary for any Ford F-150 with the three-valve 5.4L Triton engine. The procedure for changing a phaser is similar to changing the camshaft in a Toyota Tacoma.

A faulty cam phaser can affect the injectors and control units, causing the engine to run rough and produce less power than it should. If you need to fix your car’s variable cam timing problem, it may be necessary to have it repaired by a professional. The cost for an auto technician can range from $800 to $2500. These are common symptoms of a faulty cam phaser, but there are a number of ways to fix the problem and save money.

Valve guides

If your gauge reading drops regularly, it is probably time to replace your valve guides. If it’s dropping slowly at idle, there is a good chance you’ve misset the valve timing. If it drops quickly, you might have a clogged intake manifold or blown head gasket. If it goes from 15 to 20 in Hg at idle, you likely have stuck valves or an intake leak. If it moves in a wide range of values, you may have a valve guide leak or a valve spring leak.

A valve guide is a cylindrical piece of metal that is located inside each valve in a cylinder head. It functions in conjunction with valve springs to keep valves in proper contact with the valve seat. When they fail, the valves don’t close properly, and you might notice smoke coming out of your exhaust. If this sounds familiar, it’s likely a valve guide problem. If the valve guides aren’t the culprit, you should contact a mechanic who can fix the problem quickly and efficiently.

Aluminum heads

Those who own a Ford Triton will be familiar with the problem of blown spark plugs. This problem affects models with two-valve engines (4.6L V8, 5.8L V10, and 6.8L V10), and it has to do with the aluminum heads used in these vehicles. The Ford engine block is made of two-dimensional cast iron and thick die-cast aluminum, and has a plastic oil pan. The Ford factory installed four-thread plugs in V10 engines, and then left space for only four threads to engage. This is a problem, and Ford has a remedy for it.

One option to replace the head is the Robert Yates High-Port aluminum head. This is a NASCAR-level race head, and features an aluminum runner with a small 40-cc chamber. The AFR head, Gt-40X head, and Trickflow heads are all available. However, some owners want to retain the low-end torque from their Ford Broncos, and avoid shifting the power band too far to the top. The cam size, runner size, and valve size all play a role in retaining low-end torque.

The Ford company decided to drop Thermactor manifold bungs from the D5OE head. This led to a common internal air-injection manifold that ran the length of the head and did not restrict the exhaust port. These changes helped Ford solve a number of issues, and the resulting cylinder head failure was resolved. Aluminum heads are now used in trucks. And Ford is working to improve the efficiency of these engines and will eventually introduce new engine technology to its lineup.

The Ford GT40 has the same aluminum head design as the 5.4L GT40. It also includes dual fuel injectors on each cylinder and new 5-layer MLS head gaskets. It’s hard to find a matched set of heads, and they’re extremely expensive. However, if you are still looking for the right set of heads, you can consider a Ford GT head if you are upgrading your truck’s engine.