The 7 Most Common 5.7 Hemi Problems, Cause & Solutions

About 5.7 V8 Hemi Engine

5.7 Hemi engine is one of the most renowned models of the Chrysler Company. This engine is their third-generation member of the family of Chrysler’s V8 Hemi engine. It was produced to replacing the earlier 5.9 L V8 Magnum engine model. Later it has become the only available gasoline engine of this series. This model is immensely popular among users because of its design flaws and reliability.

5.7 v8 Hemi engine

Hemi is one of the most popular Hemispherical-shaped engines with a lot of features. The difference with the regular engine is its piston has a rounded shape rather than a flat top. Also, its surface area is narrower than other engines, resulting in better heating and burning of fuel.

 A lot of versions and generations of Hemi have come on the market since 1951. However, the 5.7 L Hemi is from the third generation that started its journey in 2002 with the hand of Chrysler. Many vehicles such as Dodge Durango, Ram Pickup, Dodge Magnum R/T, Jeep Grand Cherokee, Chrysler 300C, 300S V8, Dodge Charger R/T, Jeep Wagoneer, Dodge Challenger R/T, etc. use this 5.7 Hemi engine. 

But still, there are a few common issues that are faced by the common users often. We are going to discuss these problems thoroughly and provide you necessary solutions as well. 

Is the Hemi a good engine?

Yes. The Hemi is a good engine. Despite some problems, it is very famous for its reliability, durability, and robust features.

5.7 Hemi Problem Cause 

The performance of this reliable engine is stout and sound. But as we know, no engine is perfect and the same things go with a 5.7 Hemi or 345 Hemi engine. One common problem of this engine is the failure of CAM and Lifter. Here are the causes of this problem: 

  • Oil Level: When the oil level is quite low and can’t even provide sufficient oil pressure to help the engine to reach the upper valve parts so that the lifters can demand lubrication. In this situation, the oil pickup screen won’t be able to pull oil and the shifters will start suffering from a lack of lubrication. 
  • High Mileage: Older 5.7 Hemi engines with more mileage on them are supposed to suffer from this problem. When it is coupled with low maintenance (such as oil and filter changes) as well, then the accelerators will start wearing off soon. 
  • Oil Viscosity: 5.7 Hemi engine requires proper oil viscosity maintenance so that the components don’t get wear off and performance remains top-notch for several years. When your engine will have a low flow rate, then it will also have low oil pressure and the performance won’t be at the top level as well. 

7 Common 5.7 Hemi Problems and their solution

Hemi is a reliable engine. Though it has some issues with ticking, misfiring, or exhaust manifold bolts, its overall performance is better than many other engines in the market. Without maintaining any specific order, here are 7 of the most common 5.7 Hemi Problems as follows: 

  1. Multi-Displacement System (MDS) 
  2. Engine Tick
  3. Misfires
  4. Issues of Faulty Exhaust Manifold Bolts
  5. Lifter Roller Symptoms
  6. Poor Emission Control
  7. Overheating

Before going into an in-depth discussion, we will be giving some general notes first. Just because we are mentioning several issues and problems of the 5.7 Hemi engine, it doesn’t mean that every Hemi engine will have the same problems.

5.7 Hemi Problems

There may not be any problem with your 5.7 Hemi engine but when it will have one/two problems, our solutions will get you the best results and assists. Usually, the old and high-mileage engines tend to face such issues. Now let’s move into a detailed discussion on the above-outlined problems:

Multi-Displacement System (MDS) 

To shut down all four cylinders, the 5.7 Hemi engine utilizes the multi-displacement system. This technology is a great one and paves the way for improving fuel economy and emissions.

The Multi-Displacement System (MDS) is a variable displacement engine technology developed by Chrysler. MDS is included in all Hemis after 2006. However, it is still unavailable in cars with the manual gearbox.

When the engine has an MDS problem, it will show no sign on the surface. Even the power of the 5.7-liter displacement will be still there when you will require it.

However, it will make the engine more efficient which work well for all users. But still, many owners complain about this problem because the engine operation doesn’t feel natural. Because of the cylinder deactivation, the longevity of the 5.7 Hemi engine is affected as well. 

There are not any specific issue which may attribute to the MDS directly. But there are proven engineered concepts that prove that MDS certainly can do harm to the engine and can make the engine have lesser longevity.

The spark plug can get nasty when it gets very cold. At that time, lubrication may not be enough to set things okay as the cylinders are too cold.

In MDS, there will be a lot of unknown issues boiled up before having any precise solution to them. However, you should not concern much about that, still, you need to consider them. 

Engine Tick

Though engine ticking is a common problem for any type of vehicle, but we will be approaching 5.7 engine ticking issues here. There are a few reasons for which this issue becomes quite interesting.

Though some people will tell you that ticking is normal and it doesn’t affect anything of your engine.

But there are a huge amount of cases where the 5.7 Hemi engine owners needed to change their entire engine because engine ticking does affect the longevity of the engine. There are a few causes that make the 5.7 Hemi engine tick and here they are: 

  • When your lifters are faulty. 
  • If your roller lifter is seized. 
  • Failure of the exhaust manifold bolt. 

The faulty lifer issue is the primary issue here and we will direct our focus towards it in the first place. In addition, this looks to be the most serious reason for the engine ticking problem of 5.7 Hemi.

The problem boils down to not getting a proper flow of oil to the roller lifters which led the way to seizure. Then the lifter contacts with the lobes of the camshaft and start making ticking sounds. But if you can catch this issue early, then you can certainly prevent further damage by repairing the engine. 

Note: Ticking is such a noise that arises for damaged or low-quality oil pump, bearing, or poor oil level. Sometimes, in 5.7 Hemi, ticking noise starts and, in fact, get adverse after heating up. And this creates a wrong impression of these engines.

Misfires 

Though we can’t say misfires are a common problem, still as it is linked with some other common issues therefore we are putting it here with the common 5.7 Hemi problems. Misfires are more of a symptom than a problem itself and this is why you don’t have to look for any other symptoms to identify this issue. 

Engine Misfiring is a common issue in Hemi 5.7. It occurs when the air-fuel mixture cannot get adequately burned in the burning chamber. In this case, losing power, the engine jerks incessantly and dramatically raises fuel consumption.

Most engines do misfires because of lack of maintenance. Many parts of the engine wear out due to the lack of maintenance and therefore it started misfiring now and then.

But some other factors may lead to the misfires in the 5.7 Hemi engine such as faulty injectors, lifter rollers, ignition coils, and some other internal issues. Try to replace spark plugs before they wear out and carry out regular maintenance properly.

Lifter Roller Symptoms

Every engine contains hydraulic valve lifters. It is also known as lifters or hydraulic tappets or. They are made to keep the engine valves undamaged during the thermal expansion process. The lifters achieve it by keeping the valve clearance at zero.

But the symptom of a faulty lifter roller is widespread in Hemi’s. These tickling sounds always remind me of a damaged lifter.

Check engine light issues

The check engine light is a faulty indicator lamp that indicates that something is awful with the car’s engine computer. Sometimes, the Hemi 5.7 engine creates troubles which show an alarm on the computer screen.

AM WEIGHT

Chrysler 5.7L Hemi Engine weight is around 500 lbs. 

HIGH TORQUE CURVES

Hemi’s biggest weakness, especially in the case of trucks, is its harsh torque curve. It peaks at higher engine speeds. This feature lacks the limited torque preferred in applications demanding higher engine speed to achieve the engine’s full potential.

Overheating

The compulsion chamber of Hemi has not proper space to get cool down efficiently. The small space prohibits air circulation. This sometimes creates overheating of the engine. Also, sometimes in summer, an idle engine shows a record of overheat in the computer screen.

Exhaust Manifold Bolts

Ticking noise is the first and primary symptom of the broken exhaust manifold bolts. Broken exhaust manifold bolts on the 5.7 Hemi engine also create a wear-out leak. If it becomes a bad one, then you may have to see power loss in your engine as well. 

The exhaust manifolds of Hemi are iron-made metals that expand and contract during heating and cooling cycles. Here, the expansion occurs naturally. Over time, the expansion and stretching of the manifold bolts put too much tension on the bolts and stretch them beyond capacity, and this causes failure.

When your exhaust manifold bolts get failed before the warranty period, your issues will be fixed by the Hemi engine dealers for free of cost and it happens in most cases. In case, you do not match this criterion, then you will need to do the repairs on your own money.

But you can save some money by doing it on your own as the access to manifold bolts isn’t very complicated. You can certainly get proper help from the DIY group as well. However, it would be a better choice to consult a professional in the case of a specific failure of manifold bolts. 

Poor Emission Control

In automobiles, an emission control system limits the release of toxic gases from the intrinsic engine and associated components. Hemi 5.7 gives an unsatisfactory result on emission control.

5.7 Hemi Problem Solution

First of all, you need to test a part or metal of the engine to determine the quality of the ingredients of this engine. You should conclude about the quality of the engine and its parts by this test.

With this problem, your camshaft and lifter wheel will score 57 RC. It will cut us down into one solution. 5.7 Hemi engine has a well-known sensitivity to the oil condition.

Therefore, Chrysler Company recommends their users use 5W-20 oil for this engine. As this oil is water-thin, the 5.7 Hemi engine will splash off the crank to travel up to the cam shifter easily.

This is how your 5.7 Hemi engine will come into a better shape and will deliver problem-free performance efficiently for a very long time.  

Read more on 6.4 Hemi Problems and Solution

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5.7 Eagle update info

Chrysler brought the first significant changes to the third generation 5.7L Hemi in 2009. He gave the engine an eagle shape. 

This Eagle named engine incorporated Variable Cam Timing (VCT). He merged it with the Multiple Displacement System (MDS), which necessitated significant changes to the cylinder heads, cylinder block, and other elements.

Compared to the previous 5.7L heads, the cylinder heads have better port flow regarding intake and significant improvements to the combustion chamber design and size.

5.7 Hemi Reliability 

5.7 Hemi engine is quite reliable and trustworthy to deliver a stout performance for a long period. Though it certainly is not the most reliable engine in the world, it is among the top at least in terms of reliability.

5.7 Hemi engines are being used in powering some flagship and popular cars for the last two decades. It certainly proves the point of reliability of the 5.7 Hemi engine. No engine is without issues and problems.

The thing that matters is it happening regularly or occasionally and is there a proper way to repair them? 5.7 Hemi engines rarely face issues and there are fix solutions to them.

If the problems happen during the warranty period, then you will get a free repair from the 5.7 Hemi dealer. On the contrary, you can DIY by reading threads from the internet pretty easily. 

Advantages of 5.7 Hemi Engine

Despite the problem of the Hemi 5.7L engine, it has a lot of advantages. Here are some of the common facilities you’ll get.

  • The position of the valves is just on the other side of the head. It helps to create space for valves. 
  • 5.7 Hemi has a tiny surface area. As a result, the burning chamber gains the ability to generate heat in a short amount of time.
  • Hemi’s dual spark plug design has the benefit of reducing flame expansion and emission.
  • When the engine runs at high speeds, the active intake manifold opens a short runner to improve engine performance.
  • It has a multi-displacement mechanism that aids in fuel efficiency.
  • Hemi’s compression ratio is higher than other engines.
  • It includes a mild Hybrid e-Torque system.
  • The camshaft timing is adjustable.

Overall, most of the people who are using it leave a review of satisfaction compared to other engines.

FAQ

What is the life expectancy of a 5.7 Hemi? 

The life expectancy of a 5.7 Hemi is dependent on the maintenance period vastly. 5.7 Hemi engines are incredible for around 3,00,000 miles and to get more mileage you must need to take care of the engine and carry out regular maintenance as well. However, it can function well for more years with routine care and maintenance. Regardless of the early models suffering from the mileage, 5.7 Hemi engine trucks are now running around the places smoothly. 

What year did the 5.7 Hemi have Cam issues? 

In the year 2011, Chrysler made a disaster by screwing up all the Dodges, Jeeps, and Rams of 2011 series which were packed with 5.7 Hemi engine and they had to pay for it highly. It was seen back then, the valve lifters of the engine tend to grasp and annihilate the camshaft for some reason. It forced the customers to pay a huge repairing bill as well. 

5.7L Hemi Lifter/Cam failure

What’s wrong with the Hemi engine? 

There can be a lot of things that can get wrong with the Hemi engine such as heat loss, ticking noise, torque curves, and size issues of combustion chambers. But these are not some regular issues you will face unless your maintenance policy is not well off. These are some occasional issues that won’t bother you if you carry out regular maintenance and take good care of the engine. 

What causes the Hemi tick?

Tapping of lifters mainly causes ticks in Hemi. However, damaged bearing or valves or using poor quality of fuel also results in Hemi stock. 

Did Ram fix the Hemi tick? 

No, Ram didn’t fix the Hemi tick and it is still there giving the owners problems and repairing bills. The only thing which can fix the ticking issue is changing or repairing the lifter, valve and using high quality gasoline oil. Sometimes they were seen to go a bit above abounds for the solution but the problem is still out there. But Ram never took an initiative to resolve the issues for their customers. 

How much does it cost to replace a 5.7 Hemi? 

Costs are subjected to increase and decrease according to the availability in the market. But the average cost for replacing a 5.7 Hemi engine is between $5,600 and $13,000. When you decide to buy a remanufactured Hemi engine, then it will cost you less money. Without installation fee, it takes $2,900 to $4,000 to replace a 5.7 Hemi remanufactured engine. 

5.7 hemi lifter failure

5.7 hemi timing chain noise

What fixes the Hemi tick?

An average Hemi tick is not very disturbing. But when it sounds a lot, repairing the lifter, valves, or bearing and using high-quality oil can fix the problem.

What oil stops Hemi tick?

Redline oil 5w30 reduces the Hemi tick and reduces it successfully by 80%

Conclusion

5.7 Hemi engine is an impressive engine for any flagship car and its reliability makes it more appealing to the customers. In terms of longevity, it is one of the best available pieces in the market. 5.7 Hemi engine rarely faces any serious and expensive issues. Maintenance and repairing costs are also reasonable and within the limit for any class of people. All the common problems of the 5.7 Hemi engine can be easily solved by following our mentioned steps and ways. Therefore, in all terms and means, a 5.7 Hemi engine is a recommendable and reliable engine for all types of flagship cars. 

5.7 v8 Hemi engine

The 5.7 v8 Hemi engine is a 5.7, 5654cc,; 345 cu. in. naturally-aspirated from the Hemi family. Authorities manufactured it with a cast-iron block and two aluminum heads to hemispherical combustion chambers. This engine features a cast-iron block and two aluminum heads.

The compression ratio rating is under 9:6:1 and constructed with 99.5 mm bore and piston strokes. A rider can use an electronically controlled sequential multi-port fuel injection system. This feature enables the engine to switch from an 8-4 cylinder operation.

The V8 Hemi engine produced coil over plug ignition systems with 0.2 spark plugs per cylinder. It comes with a single camshaft and two valves (8×2=16 valves in totals ).

Specification Of 5.7 V8 Hemi Engine

Engine Model Of V8

            HEMI 5.7 (ESB)

Layout Of 5.7

            Four-stroke, V8 Hemi

Fuel Types Of Hemi

            Gasoline/ G.S (petrol)

Production Of Hemi

            The 2003-2009 year

Displacement Of Engine

            5.7 L/ H.M; 5,654 cc (345.0 cu in Hemi)

Engine Weight

            245 Kilogram /kg (540 lbs)

Fuel Systems Of Engine

            Sequential Multi-Port Electronic/ S.M.E

Power Adder Of Engine

            None

Power Output Of Engine

            345 PS in V8 (253 kW/ kilometer watt; 340 HP /horsepower) at 5,000 Hemi rpm

350 PS (257 kW/ kilometer watt; 347 HP/ horsepower) at 5,000 rpm In V8

Torque Output Of Hemi

            508 N·m (51.8 kg’m/ Kilogram. Meter 374.4 ft·lb/ feet) at 4,000 rpm, revolutions per minute.

529 N·m (53.9 kg’m/ kilogram. Meter, 389.9 ft·lb) at 4,000 rpm, revolutions per minute.

Firing Order Of E.G

            1-8-4-3-6-5-7-2/ 5.7 V8 HEMI

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