Common 4.7 Dodge Engine Problems and the Causes

Dodge engines are known for their decent, if not top-tie reliability, and the 4.7 Dodge engine is no exception. The 4.7 Dodge engine, known as the Next Generation Magnum or PowerTech in Dodge applications, first debuted in 1998 and went into mass production in 1999.

The invention of the 4.7 V8 Dodge engine was a big deal at that time because Chrysler had not launched a V8 engine since the 1960s. The engine ruled the 2000s because it re-defined the next generation of trucks and SUVs for drivers. Due to its reliability, Chrysler continued the production until April 9, 2013 — the production lasted for 15 years.

However, as with every other engine, the 4.7 Dodge engine has its strengths and weaknesses. If you are planning on buying a vehicle with this engine, read these Dodge 4.7 v8 engine problems before making that buying decision. You’ll learn the history, cars that use the engine, and the specifications.

4.7 Dodge engine explained

Before the invention of the 4.7 V8 Dodge engine was the 4.0L inline six-cylinder engine. The 4.0L inline six-cylinder has served many Jeep models for over a decade. At that time, the 4.0L inline six-cylinder by Chrysler was making waves in the industry and was loved by many. However, Chrysler needed to make some industry advancements, which led to the invention of the 4.7 V8 PowerTech Dodge engine.

The 4.7 Dodge  PowerTech is a stunning V8 engine with two valves — one exhaust valve and one intake valve per cylinder. It is designed with aluminum cylinder heads, a cast-iron block with a 9.09” deck height, and a polymer intake manifold, and the valve cover is molded with magnesium.

Within the engine lies a cast-iron crankshaft, properly torqued with a single graphite-iron bedplate. The connecting rods, attached to the crankshafts, are made of powder-forged metal fracture splits measuring 6.12” in length. And a moly-coated skirt pistons to reduce friction to the barest minimum.

The 4.7 Dodge PowerTech engine also features a standard coil-on-plug ignition system, a hybrid cooling fan system, and a multi-port electronic fuel injection system — each injector sprays fuel directly into the head cylinder’s intake port. It also has an electronic 2.56” throttle body.

The 4.7 liter Chrysler PowerTech engine was the first in its family — appearing to the general public in a 1999 Jeep Grand Cherokee. Chrysler engineers continued the production with no significant changes until 2005 when they made a few changes including knocking sensors.

Three years later — in 2008, the engineers designed new cylinder heads that use two spark plugs per cylinder, which improves the engine power and efficiency. They redesigned the crankshaft, connecting rods, and introduced lightweight pistons. The changes increase the compression ratio. Instead of the 9.0:1 in previous versions, the upgrade in 2008 increased it to 9.8:1.

The 4.7 Dodge V8 engine comes in two versions — the standard 4.7 PowerTech and the 4.7L PowerTech High Output (HO). The standard version has 295 torque and 235 horsepower. The High output version has a staggering 265-310 horsepower and 320-334 torque.

While the 235 horsepower and 295 torque on the standard version of the 4.7 Dodge engine is nothing crazy by today’s standard, it’s still a lot of power for most drivers.

The 4.7-liter Dodge PowerTech saw its longest run on Dodge RAM 1500. While the engine has its pitfalls, it is a reliable engine if properly maintained.

What cars use the 4.7 Dodge engine?

Before discussing the 4.7 Dodge engine issues, let’s see the vehicles that use Chrysler 4.7 PowerTech engines.

Standard 4.7 PowerTech

4.7L PowerTech High Output (HO)

4.7 Dodge engine specs

Now that you have seen the history, applications, and specs of the 4.7L Dodge PowerTech, let’s see the common 2011 4.7 Dodge engine problems. You’ll learn the problems across several years of this powerful engine.

Common problems of 4.7 Dodge engine

The most common problems the 4.7 Dodge owners complained about are cooling system issues, valve seat failures, engine overheating, and blown head gaskets. 

Let’s have a closer look at these problems to better understand if the 4.7 V8 Dodge PowerTech is a reliable engine or a piece of crap. However, you should understand that while these are common problems of the 4.7L V8 Dodge engine, it doesn’t mean that it happens to all the 4.7L Dodge engines out there.

Plus, most owners who complain about their engines have high-mileage cars. Believe it or not, it’s normal for high-mileage vehicles to experience occasional engine problems.

Cooling systems and overheating issues

Most engines are prone to cooling system issues at some point during their life expectancy, and the 4.7L V8 Dodge PowerTech engine is no exception. The cooling system consists of several parts — a water pump, radiator, radiator hose, thermostat, cooling fan, and engine coolant.

Most of these parts are prone to wear and tear, primarily due to age. If any of these parts goes bad, it will cause overheating. Dodge 4.7 engine overheating problems usually escalate. And that brings us to the next common problem — blown head gaskets.

Blown Head gaskets

Blown head gaskets are one of the most common 2006 4.7 Dodge engine problems. This issue also cuts across other year models. Mechanically, almost every engine will burn the head gasket if it experiences severe overheating. But it seems the head gasket on the 4.7L Dodge engine easily gets burnt sooner than others.

So, to prevent blowing up the head gasket on your 4.7 Dodge engine, always fix any cooling system issues as soon as you can. Do not ignore any cooling system issues just like you may be doing on other vehicles.

Valve seat failure

A notable 2005 Dodge 4.7 engine problem is the valve seat failure. The primary work of the valve seats is to properly seal the intake and exhaust valves so there will be no compression leaks. If the valve seats become bad, there will be a loss of compression as the pistons try to compress air during the compression stroke.

And that will have a great impact on the engine performance, especially if ignored for long. While 4.7 Dodge engines suffer valve seat failure, it is unfair to call it a common problem. Let’s not forget that the internet has a way of blowing things up.

Valve cover leaks

With over a decade of experience in our garage, I know a thing or two about valve cover gasket oil leaks. And that is a common 2007 4.7 Dodge engine problem that also cuts across other year models, especially as the engine ages and becomes high mileage.

Over time, the rubber gasket on the 4.7 Dodge PowerTech engine becomes brittle and cracks. Invariably causing oil leaks from the valve cover. At first, the leaks are usually small — not big enough to cause a low engine oil level. But if you ignore it for an extended period, it will escalate and mess up the engine bay.

While a small oil leak from the valve cover is not an urgent repair and not a big concern, I recommend fixing it as soon as you can. Oil leaks, depending on where it is dripping on, can cause fire hazards or wear out other engine components.

Frequently Asked Questions — FAQs

Is the 4.7 Dodge engine a good engine?

Common engine problems can sometimes make an engine look like the worst engine ever built. But the thing is, there’s no engine in the world that you can’t see that has a couple of common problems. Though the 4.7L V8 Dodge PowerTech engine has its pitfalls, it is a fairly reliable engine.

When did Dodge stop making the 4.7 V8?

Chrysler produced the V8 4.7 Dodge PowerTech engine at the Mack Avenue Engine Complex in Detroit, Michigan — an automobile factory at Stellantis North American. Regular and flexible fuel versions of the PowerTech engines were produced and used in many Chrysler vehicles. The production started in 1998 and on April 9, 2013, they discontinued the production of the engine, making it 15 years of production.

How much HP does a 4.7 Hemi have?

The 4.7 liter V8 Hemi engines are engineered as middle engines for vehicles like Ram 1500. It comes with a staggering 310 horsepower coupled torque of 334 pounds-feet. While 310 horsepower may not be a crazy deal for some, many folks adore it.

Is a 4.7 Dodge motor a 318?

The short answer is no. The 4.7 Dodge and 318 are not the same. The only thing they have in common is that both use unleaded fuel and have 8 cylinders.

The 318, known as Dodge 318, is a small block Chrysler 5.2L V8 gasoline engine that was produced between 1967 to 1991. It was part of Chrysler’s LA engine series that made waves at that time. On the other hand, 4.7 Dodge is a 4.7 liter V8 PowerTech engine that was first produced in 1998 and discontinued in 2013.

What oil does a 4.7 Dodge take?

According to Chrysler engineers, you can use 5W-30 or 10W-30. Though, 5W-30 is preferred over 10W-30. The engine has an oil capacity of 6 quarts. The oil doesn’t have to be a synthetic blend or fully synthetic. You can use regular oil. However, you can switch to synthetic oil, but before doing that, ensure you won’t switch back to regular oil.

Who makes the 4.7 Dodge engine?

The 4.7 Dodge engine is produced by Chrysler at the Mack Avenue Engine Complex in Detroit, Michigan, their manufacturing factory in Stellantis, North America.

Final Words

While the 4.7-liter V8 Dodge engine doesn’t have great power by 2020 standard, it is a reliable and a great engine for its era. Plus, every engine has its glory and pitfalls — the 4.7 Dodge engine problems listed in this article doesn’t make it a bad engine.

However, it’s best to look out for cooling systems and overheating problems. Severe overheating is the common cause of valve seat failure and blown head gaskets. Though these problems can happen, overheating is the common culprit.