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How Much Does It Cost to Replace Jeep 3.8 Engine? (Details)

If the engine in your Jeep 3.8 is broken or you just want to replace it, you’ll need to know how much it will cost.

It’s not a good idea to replace the engine in a Jeep 3.8 without planning. Contacting skilled mechanics who can aid you in evaluating the cost of replacing your vehicle’s engine is a better plan.

The cost of replacing a Jeep 3.8 engine ranges from $3,000 to $6,000; if you can find one for less than $3,500, the odds of labor being less expensive are slim.

Jeep 3.8 Engine Replacement Cost (Updated Price)

Labor is usually the most expensive component of the pricing. This is because changing an engine, especially the Jeep 3.8 engine, takes a long time.

The status of your Jeep 3.8 plays a big role in this. It may be more cost-effective to replace your engine if it is defective and cannot be repaired. If an engine can be repaired and you have the time and skills to do it, it may not be worth replacing.

The pricing range is typically between $3,000 and $6,000. The price may vary since there are several factors to consider before replacing your current engine. Another thing to think about is your Jeep 3.8’s model.

Your 3.8 will need to be disassembled and then reassembled. This circumstance and cost might be very stressful or quite comfortable. Don’t worry; we’ll take care of everything. We’ll now talk about how much it will cost to replace the engine in your Jeep 3.8.

Product NamePriceWeightWarranty
Tri-Star Long Block Engine 1012$2555410 lbs.3 Years 
J-Force PRO Parts Engine RE07440B$2322350 lbs.6 Years 
Titan Remanufactured Long Block Engine TENG120$1872450 lbs.3 Years 
NuTech Remanufactured Long Block Engine DA21$2802355 lbs.4 Years 
Grade A Remanufactured Long Block Engine 300-7038R$3352500 lbs.3 Years 

When Should You Replace Your Jeep 3.8 Engine?

When your engine is destroyed, it will have a significant influence on your vehicle’s performance. The following are some signs that your Jeep’s engine needs to be replaced.

1. Power Loss

If your Jeep hesitates to accelerate, it might be a sign of underlying engine problems. It’s critical to realize that if your Jeep 3.8 is lacking in power, it’s a symptom that the engine is experiencing serious issues.

It might be due to a blocked oil filter, for example. This is extremely dangerous since it might cause a complete breakdown, necessitating costly repairs.

2. Oil with Metal Shavings

Frequently, you must maintain the engine’s best functioning condition. Detecting metal shavings during an oil change indicates that your engine is having issues.

As a consequence of regular wear and tear, metal debris may have entered the engine. If your engine is idling rough, producing strange noises, or consuming less power, look for metal shavings.

It’s conceivable that some of your engine’s components need to be changed if this is the case. As a result, never dismiss the initial indications.

3. Noise Coming from Engine

While it’s typical for the engine to produce noises while it’s running, you should be alert if you notice unusual noises.

This might be due to dirty oil or something else entirely, and if the engine is banging, it could be due to a broken engine bearing.

These bearings provide for maximum mobility by reducing friction between moving elements. You’ll be trapped in the middle of your journey if these don’t function.

4. Exhaust Smoke

Exhaust smoke is normal, but if your Jeep 3.8 generates a lot of it, you might be concerned. This might indicate a significant engine problem, so keep a tight eye on it.

There might be white, blue, or black smoke, and the temperature of the engine should be checked in any instance. If it gets hotter than usual, it might create major complications.

It’s usual for a small amount of smoke to be blown out when you start your Jeep 3.8, but if the smoke continues to come out while it’s running, you should have your Jeep repaired immediately.

Jeep 3.8 Engine Installation Guide:

To replace the engine, you need a couple of tools. These are:

  • Engine measuring tools.
  • Feeler gauge.
  • Dial bore gauge.
  • Digital caliper.
  • Piston ring expander and compressor.
  • Torque wrench.
  • Tap and die set.
  • Valve spring compressor.
  • Engine stand.

This is a step-by-step instruction on how to replace your Jeep 3.8’s engine:

Step 1- It will be much easier if you remove your bonnet as soon as possible. Replace the bolts and gently set the bonnet somewhere secure with rags beneath the corners that meet the ground once it has been removed from the Jeep. Disconnect your battery before removing or unbolting anything else in your engine compartment.

Step 2 – Using drip trays and the like, drain the oil and coolant from your engine and radiator. You shouldn’t have to worry about emptying your power steering system because unbolting it from your engine may be easier.

Step 3 – As you begin to remove the engine out, there will always be further coolant spills, and so be prepared with rags, plastic sheeting, or a tray.

Step 4 – Although it may be possible to simply disconnect your coolant lines and leave the radiator in place, the last thing you want is for a swinging engine to accidentally bump the radiator; therefore the entire system should be removed.

Step 5 – Finally, while unbolting the exhaust can be a pain, disconnecting the system at the collector flange is usually sufficient. The bolts that hold the exhaust together will most likely be partially seized due to constant expansion and contraction.

Step 6 – Follow the procedure outlined in your vehicle’s workshop manual, taking care not to accidentally damage any sensitive clips or connectors. Detach your air conditioning pump from the motor as much as possible.

Step 7 – On fuel-injected Jeeps, wiring connectors for the injectors may be hidden amid the intake system, so make sure you disconnect them as needed.

Step 8 – It’s possible that the transmission bolt clearance is quite limited. Remove the motor mount nuts to give yourself more room to spin a spanner, and then elevate or lower the engine using a jack or crane.

Step 9 – If your Jeep 3.8 has front-wheel drive, you might find it easier to remove the transmission and motor simultaneously.

Step 10 – Consult your vehicle’s owner’s manual to determine the best spot for tying your crane’s chains to your motor. You’ll need to lift the engine away from the transmission as well as move it away from the transmission, but be cautious not to let it swing freely and hit with anything in your engine bay.

Step 11 – After putting your engine on a pedestal, you’re ready to begin rebuilding it. It’s now time to put your new engine to the test.

Is It More Cost-Effective to Repair or Replace A Jeep 3.8 Engine?

The cost of a planned overhaul is nearly usually cheaper than the cost of a new engine. Rebuilding an engine to fix it is frequently less expensive than purchasing a new one. Rebuilding an engine can save you up to half the cost of a new one. However, rebuilding isn’t always the best solution.

Does The Jeep 3.8 Have A Reliable Engine?

The 3.8 is a good engine that does the job until you add huge tires, lift kits, armor, and other accessories that require additional power. At that point, it becomes, at best, pedestrian.

What Is A New Engine’s Average Lifespan?

The average engine lifespan was eight years or 150,000 miles for a long time. New designs, improved technology, and greater service standards have increased the average life expectancy to roughly 200,000 miles, or around ten years, in recent years.


We’ve concluded our discussion on how much it costs to replace a Jeep 3.8 engine. We hope that after giving you all of the essential information, we were able to assist you with your needs. It’s now up to you to choose the best engine at the best price.

You can select an engine from the options we’ve provided. Otherwise, you’re free to experiment with your style. You may also purchase a bespoke engine for your Jeep 3.8.

So, keep all of the important facts in mind and purchase your preferred engine as needed. Best of luck!

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