Most Common Jeep 4.7 Engine Problems

Jeep has long been known for producing durable and capable vehicles, but even the most reliable machines can develop problems over time. One of the most popular Jeep vehicles is the 4.7-litre V8 engine, used in various models such as the Magnum Dodge Ram, Dakota, and Grand Cherokee.

If you own a Jeep with a 4.7 engine, you may have experienced some of the most common problems these engines are prone to. In this article, I will discuss the top Jeep 4.7 engine problems and their possible solutions.

Standard 4.7 PowerTech

This engine 4.7L V8 offered 235 hp and 295 torque.

  • 1999-2009 Jeep Grand Cherokee
  • 2006-2009 Jeep Commander
  • 2000-2007 Dodge Dakota
  • 2000-2009 Dodge Durango
  • 2002-2007 Dodge Ram 1500
  • 2007-2009 Chrysler Aspen

4.7L PowerTech High Output 

With 265-310 horsepower and 320-334 torque, Jeep Grand Cherokee was released with a higher-output version of its engine in 2002. The following vehicle models used this new engine model.

  • 2002-2004 Jeep Grand Cherokee
  • 2007-2008 Jeep Grand Cherokee
  • 2007-2008 Dodge Dakota & Ram 1500

Jeep’s 4.7 engine has been around for over two decades, and customer reviews show a mixed opinions on its performance. Like many other vehicle engines, it also has some regular glitches and issues that must be considered before purchasing. This article provides an overview of potential faults with the Jeep 4.7 engine and solutions to address them.

Jeep 4.7 Engine Problems – Magnum Dodge Ram, Dakota,


Overheating is one of the most common problems that affect Jeep 4.7 engines. A malfunctioning cooling system, such as a faulty water pump or radiator, usually causes it. Under the hood, you may see steam from your engine if it is overheating.



The key to solving this problem is identifying its root cause. Ensure your coolant is properly circulating and your coolant levels are correct. Also, ensure that your radiator and water pump are functioning correctly. If these components are damaged, consider replacing them.

Oil Sludge

Another common problem affecting Jeep 4.7 engines is oil sludge buildup. Oil sludge is a thick, gooey substance that forms when oil breaks down and accumulates in the engine. It can clog oil passages and lead to engine failure.

Oil Sludge


To prevent oil sludge buildup, it is crucial to change your oil regularly. Use high-quality oil and oil filters that the manufacturer recommends. If you notice signs of oil sludge buildup, such as low oil pressure or strange engine noises, consider flushing the engine and replacing the oil.

Timing Chain Issues

The timing chain synchronizes camshafts and crankshafts in your engine. Over time, the timing chain can stretch or break, causing severe engine damage.


To prevent timing chain issues, it is essential to have your engine inspected regularly. Have your timing chain checked if you notice any unusual engine noises or poor performance? Replace it with high-quality parts if necessary.

Faulty Exhaust Manifold

The exhaust manifold in your Jeep 4.7 engine collects exhaust gases from the engine and directs them out of the vehicle. A faulty exhaust manifold can cause problems such as decreased performance and loud engine noise.


Consider replacing your exhaust manifold with a high-quality aftermarket part to solve this problem. A good aftermarket exhaust manifold will improve engine performance and reduce engine noise.

Engine Misfire

An engine misfire occurs when one or more cylinders in your engine fail to ignite correctly. This can cause poor engine performance, decreased fuel efficiency, and even damage.


To fix an engine misfire, you need to identify the root cause of the problem. A clogged fuel injector, a faulty ignition coil, or faulty spark plugs are all common causes of engine misfires. A professional mechanic should inspect your engine to determine if any parts need replacement.

Engine Stalling

Various factors, including a malfunctioning fuel pump or fuel filter, a faulty ignition switch, or a bad crankshaft position sensor, can cause engine stalling.


A professional mechanic can help you solve this problem. Their diagnoses and recommendations can pinpoint the reason for the stalling. Common repairs for engine stalling include replacing the fuel pump or fuel filter and ignition switch.

See Also : Jeep 3.8 Engine Problems

Frequently Asked Questions

How Long Do Jeep 4.7 Engines Last?

A Jeep 4.7 engine can last well over 200,000 miles with proper maintenance.

For The 4.7L Engine, What Type Of Oil Is Recommended?

The recommended oil type for the 4.7L engine is 5W-30.

How Should I Handle An Overheated 4.7L Engine?

If your 4.7L engine is overheating, stop driving immediately and let it cool down. Refill the coolant and ensure it is full. A mechanic should be contacted if the problem persists.

Can I Still Drive My Jeep With A Valve Cover Gasket Leak?

While a valve cover gasket leak won’t cause immediate damage to the engine, addressing the issue as soon as possible is essential to prevent further problems.

Wrapping Up – 4.7 Engine Problems

While Jeep 4.7 engines are generally reliable but not immune to problems, overheating, oil leaks and rough idling are among the most common issues Jeep 4.7 engine owners may face. If you experience any of these issues, it is essential to address them promptly to avoid more severe problems. Regular maintenance and timely repairs will make your engine run smoothly.