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5 Common Jeep 4.7 Engine Problems & Solution of How To Handle Them

For many years, 4.7 engines have been able to provide excellent satisfaction to a large number of users.

However, not all that glitters are gold. In this case, we will refer to the most common Jeep 4.7 engine problems that are usually suffered.

Our goal here is not to focus on the Jeep criticism. Beyond this, we will try to provide the best information to find effective solutions.

In this way, all those problems will no longer be as serious as before.

Features of 4.7 Engines

To be able to know this engine closely we need to mention the following most important characteristics. This means it is a set of aspects that are usually found today in other high-efficiency engines.

  • The cylinder capacity of 4700CC is combined with an orientation and number of cylinders of V8
  • We can notice that the maximum power generated is 227 HP
  • About the maximum torque, it is 390 Nm, at 3750 RPM
  • This includes a multi-point injection system that requires unleaded gasoline
  • The specific power is 48 HP / L
  • On the other hand, the number of valves included in the total design is 2
  • Overall, the 4.7 engine provides an average range of 530 km

Jeep 4.7 Engine Problems & Solutions

While there are several advantages of a 4.7 Jeep engine, there are also some drawbacks. So, here are the most common of these, along with the most effective solutions. In this way, you will have a better knowledge of your vehicle.

01. Engine Failure

In this case, it is one of the most common drawbacks mentioned by Jeep users. Of course, no one wants to buy a vehicle with a bad reputation.

However, you should know that this is not an inevitable problem for this type of engine.

After a certain time, spark plugs can produce sparks at the wrong time. You should check the condition of the spark plugs from time to time. Even if the vehicle is not too old, you should check this.

To get a better idea, the engine may start to fail from 80,000 or 100,000 miles onwards. Certain cracks will appear somewhere in the engine. You will not have to worry about this, as it is a very easily preventable inconvenience.

Effective solution

First of all, we should mention that these are normal problems that occur due to a lack of maintenance.

In other words, certain engine components are already too old and used. Also, the same is true for any other appliance, household appliance, or even the human body.

When we do not apply the necessary maintenance, at the right time, then certain parts start to fail.

An effective solution is to reduce the use of your Jeep to what is necessary. In the same way, using your Jeep in a much smoother way will extend the life of the engine.

Fortunately, there is a better way and that is to replace the parts that are damaged or no longer working.

If you wait too long then the entire engine will fail badly. You will have to replace a large number of parts which equates to a large amount of money.

On the other hand, breaking down the components and checking the condition of each one is much more convenient.

In this way, you can replace the parts that need it the most. At the same time, you will be taking care of the rest of the engine’s operation.

02. Oil Pressure or Petrol stains

Here there is a very common problem that hinders the power output. In general, this is a well-known problem for Jeep users.

Here we can detect that the performance of the engine decreases considerably. At the same time, the oil used inside the engine becomes too thick.

One of the reasons for this is that both the filling plug and the lid gaskets are not in good condition. Each of these materials expands over time which is not convenient. In turn, it could be that your vehicle’s oil is already too old.

However, this is not the only disadvantage that results from not changing the oil. As time goes by more and more, then the problems accumulate.

Some of these problems occur in the crankcase or the PCV concerning the ventilation. Also, these are common problems depending on the type of oil you choose.

Effective solution

Since this is a common problem, the solution is also quite common. We can mention, it is even so common that many users forget it completely over time.

Nevertheless, the first thing you should check, though, is whether it has been too long since your last oil change. If this is the case, then perform an oil change as soon as possible.

Besides, you must consider using a synthetic, lightweight, and of course high-quality oil.

In other words, it is advisable to expect the best performance from a cheap oil of dubious quality, right? On the other hand, we recommend that you have your oil changed by a professional.

In this case, you will also know if you should change the internal filters. These changes together will provide you with a more fluid operation from there.

To complete the changes, you should use high-quality fuel if your budget allows it. In conclusion. the money you invest in the best fuel will save you money on future engine repairs.

03. Domino effect of problems

Although we have already mentioned it, we need to say it again. You must check each of the engine components from time to time. It should be a habit for every user to implement when he acquires any vehicle.

In this case, a bad spark plug, a crack in a part of the engine, a lack of oil change, or lack of water in the cooling system, could be the first cause.

Each of these bad conditions will damage the next system to which they are connected. That is why the same problem easily generates additional ones.

When you check the engine components, you will be able to detect the general state of them.

So, when you detect a component in bad condition or damage, you will have the perfect opportunity to change it.

You should consider that a damaged component may favor or accelerate other engine problems and failures.

Effective solution

When the problem is on a simple component of your engine, you can make the change yourself. Alternatively, you can also repair the damaged part in some way.

However, in most cases, it is much safer to purchase a new component for the proper functioning of the engine.

There is a set of failures too early that occur due to poor cooling. So, if there is a failure in the water pump, you should take care of it as soon as possible.

Also, rarely do water valves become completely clogged from one moment to the next. On the contrary, this is a procedure that takes time. In this case, it is time that you can use to prevent more serious problems.

04. Excessive noise

A very known symptom of a malfunction is excessive noise during engine operation.

For some users, this is a cause for concern while for others it is a rather annoying factor. Beyond that, it is a symptom that tries to tell us something about our Jeep.

One of the most common examples comes from defects in the exhaust seals. Simply, this produces a firecracker sound when you accelerate.

On the other hand, it could also be the contact of a valve with the pistons. If this is the case, then it is due to serious engine failure.

A problem with this factor is that the engine lacks the right oil. Of course, that’s not the only reason, but it’s the first thing you should check. If the problem persists, then you should consult a professional in the area.

Effective solution

A fairly common and effective method is to heat the vehicle before using it. In this case, it is a problem for users in areas with low temperatures.

Therefore, when the engine is at the right temperature, then the metal is properly expanded.

When this does not happen, then the vibrations allow the metal to produce too much noise. Therefore, internal fluids must be properly applied from time to time.

05. Lack of general maintenance

Here, this is obvious but at the same time an aspect that is rarely taken into account. Also, it is very common for users to pay attention to the operation of an engine when a certain fault has appeared.

In general, this usually happens due to a lack of maintenance that users must apply at a given time.

On the one hand, we have already mentioned lube oil filter changes and general engine components. On the other hand, you should consider other checks.

Some other examples are the operation of the transmission, the brakes, the fuel consumption, and the same indicators of your Jeep.

Effective solution

Here it’s not about applying a magic technique or anything like that. On the contrary, it is important to consider two main aspects.

One is to read the entire owner’s manual. This type of manual usually includes the specific maintenance required for the 4.7 Jeep engine.

On the other hand, the general check-up and maintenance of the vehicle should be done cyclically.

In other words, you should consider performing the correct maintenance from time to time.

In this way, you can avoid major problems, not only with the engine but also with the operation of your Jeep model.

Tips for Dealing Jeep 4.7 Engine

There are some useful tips for dealing more effectively with the 4.7 Jeep engine:

  • In low-temperature areas, you should warm up the vehicle for about 15 minutes before using it.
  • Check if any cracks have appeared in the main components of the engine
  • Perform an oil filter change periodically
  • Use high-quality oil and fuel
  • Apply general and necessary maintenance, at least once a year
  • Check the correct functioning of the cooling system
  • Break down engine parts and components
  • Replace small or large engine components that are damaged
  • Paying attention to excessive noise and symptoms of irregular functioning

In this case, we can mention that these are small tips that will allow you to save a great deal of money in the future.

Also, you will be able to enjoy a smoother and more comfortable operation of your Jeep model. In turn, you will of course be extending the life of the engine and related components.

Jeep 4.7 Engine Life Expectancy

As we have mentioned the life of the 4.7 Jeep engine may vary. In this case, the service life will depend on the quality and quantity of maintenance you apply. Generally, the inconvenience due to the age of the engine begins at 100,000 miles.

Beyond that, you can incorporate the tips we have listed to extend this amount much further. In this way, you can reduce the quality and quantity of engine failures.


How good is the Jeep 4.7 engine?

Lately, the vast majority of users think that this is an engine with a good level of durability and simple design.

In this case, a base plate and a strong cast iron block are included. Besides, the overall operation of the various areas is highly reliable.

How much horsepower does a 4.7 v8 have?

Those who have a Jeep model and a 4.7 liter – V8 engine can get 310 horsepower.

In turn, the amount of torque obtained is 330 lb/ft. Along with this, it is an engine that can provide a high level of power. Fuel consumption is also quite considerable.

Who makes the Jeep 4.7 engine?

Both the 4.7 and 3.7 engines are manufactured by Chrysler. Even, the first model of its kind was released in 1999. At that time, the Jeep Grand Cherokee had a 4.7-liter – V8 engine.

What is the 4.7 Dodge engine?

As you must know, the 4.7-liter engine appeared in the 1999 model of the Jeep Grand Cherokee. In this case, it included aluminum heads with 2 valves per cylinder and a cast-iron block.

Is the Jeep 3.7 engine good?

One of the advantages that can be found with the 3.7 engine is the excellent amount of torque.

Whether it’s towing or running off-road, you get good results. However, the disadvantage is the low acceleration on the highway or the street, compared to other engines.

Are all 4.7 Dodge engines the same?

Generally, Dodge 4.7 engines are the same on most features. Of course, there are always small differences between the various models that are available today. One of those differences is the tonewheels.

What is the best Jeep engine?

According to the opinion of a large number of users the 4.0L engine is the one that offers the best performance.

How much does it cost to rebuild a 4.7 engine?

According to the opinion of some experts, this could cost between $3500 and $4500. In this case, both labor and component costs are included.

Which is faster V8 or V12?

In general, V8 engines offer higher efficiency. At the same time, they are lighter and simpler than V12. On the other hand, V12 engines generally have a smoother operation than V8 engines.


We’re done here and it wasn’t that hard to analyze, was it? As we have seen, most of the problems are due to a lack of maintenance or misuse of the vehicle.

In conclusion, that is why it is essential to pay attention to the symptoms and rare minimal behavior of the engine.

In this way, you can avoid the biggest Jeep 4.7 engine problems. Which means, this is useful, as these problems are often the costliest.

For more details about 4.7 engine;

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