Transfer case isues

So when my truck is in 4×4 and i accelarate there is a vibration that feels like its comming from the middle of the vehicle and the harder i accelarate the stronger it becomes, ive also noticed it has some dificulty shifting in and out of 4 lock so i have to keep switching back and forth for it to switch. Now i do know my tires are off ballance so i dont know if that would be a contributing factor to this situation

My car has 100000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi there. The vibration in the middle of your vehicle upon acceleration and trouble shifting in and out of 4 wheel drive may be a bad transmission mount. If the transmission mount is broken or sagging, the driveline angle changes and results in vibration. This could also affect the shift linkage. Tire balance could be a contributing factor to the vibration felt. I recommend having your vehicle’s vibration upon acceleration and difficulty shifting diagnosed and repaired by a certified technician, such as one from YourMechanic.

How to Identify and Fix Common car Problems ?

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Power train: Transfer case (4-wheel drive)

Chrysler (FCA US LLC) is recalling certain 2019 Ram 1500 pickup trucks equipped with four-wheel drive. A gear within the transfer case may not have been installed correctly, possibly causing the vehicle to become stuck in neutral.

There can be many causes for transfer case failure but the two most common include a shaft seal failure and high mileage. As you continue to use your vehicle you put more miles on it and as this happens it simply causes all of the components in your vehicle to wear out.
If the brakes are okay, then the problem lies within the transmission or transfer case. The transfer case could have the shifter placed into neutral causing the vehicle to not move.
Shifting Issues

A common symptom of a bad transfer case is having trouble shifting between gear ranges. Although this issue could be caused by thing like a low fluid level or damaged linkage, it typically indicates an internal transfer case failure.

It is not safe to drive with a broken transfer case. If your transfer case is showing signs of damage, you should have it replaced immediately to avoid transmission damage or issues with your axles and driveshafts.
In the United States, the 4WD Ram 1500 started using the NV24 type transfer cases in the 2012 and older models.
Each Transfer Case is unique and specific to the vehicle. Please locate the identification tag on your transfer case and write down the Model & Assembly Numbers. These numbers are critical in determining the exact transfer case for your vehicle.
The transfer case is serviced by periodically draining its fluid and replacing it with fresh fluid. We also check for leaks and damage. Transfer case fluid cools and lubricates the gears, chains, bearings, shafts and other parts. Over time, the additives in the fluid wear out and it doesn`t protect as well.
Difficulty changing gears – Low or dirty transfer case fluid can affect your transmission`s ability to shift gears. It can also result in your car unexpectedly falling out of four-wheel drive. Loud noises while driving – As the transfer case fluid loses its lubricating properties, friction will occur inside.
Manual shift cases require the driver to manually engage their transfer cases in order to enjoy the benefits of full 4-wheel drive power.
A bad transfer case yoke or pinion yoke.

This is not common but it does happen. The yoke on the transfer case could be machined a little off center which would cause the entire drive shaft to run off center. This in turn causes the entire drive shaft to run off center and vibrate.

The Transfer Case Control Module (TCCM) is a specialty of the General Motor`s 4WD operation. It controls the electronically-operated 4-wheel-drive system. All of its functions involve the shift – processing the shift request, executing it, and verifying the completion.
Should you drive your car with a bad transfer case? Driving your car with a bad transfer case is a bad idea. If you continue to drive with a transfer case that has a serious mechanical problem, you could destroy it beyond the point of repair, and possibly damage your transmission, driveshafts and axles in the process.
A damaged fin or bearing in the torque converter can cause hesitation in the transmission shifting, or the transmission to slip out of gear entirely. This is because the engine torque is not being efficiently converted into the hydraulic pressure needed to shift gears within the transmission.
Thankfully, you can change from 2WD to 4WD while driving as long as you`re traveling 60 mph or less. However, avoid switching between low and high 4WD when you`re driving. This can damage your gearbox and differential. In addition, you shouldn`t rely solely on 4WD to keep you safe while driving in snow.
Yes you can. Mine was stuck in 4WD for weeks… until I hit a huge pothole. I immediately pulled up onto a curb, unplugged it and have been driving it like that ever since with no problems.
New Process Gear is a major original equipment manufacturer of 4 wheel drive transfer cases for Dodge, Ford, Jeep, GM trucks and sport utility vehicles, as well as foreign applications.
While it`s always best to follow the manufacturers` recommendations, changing the Ram 1500 transfer case fluid around 80,000 miles to 90,000 miles should be acceptable under normal driving conditions.
2014 Dodge RAM 1500

The RAM received 14 recalls for the 2014 models; not all were engine problems, but most were in one way or another engine related. The transmission was the biggest issue for the year in adjustment to the EcoDiesel engine.

What Went Wrong with the Transmissions in the Dodge Ram Trucks? The transmissions that are related to common complaints and recalls for Dodge Ram trucks are five and six-speed automatic transmissions. These were found in the 2009 Dodge Ram and 2010 through 2017 Ram models 1500, 2500, 3500, 4500, and 5500.
Once you have the shifting unit (I don`t know what it is called) off the transfer case, it is fairly easy to replace the sensor. This sensor tells the computer what gear it is in and then the computer turns the motor as needed to select the correct gear.
The transfer case is a key part of almost any four-wheel-drive or all-wheel-drive system. These complicated components are built to take a beating, but the combination of their sturdy construction and complex designs make them expensive to repair or replace.
Any time the transfer case is removed from the vehicle the gasket should be replaced. The 4WD transmission output adapter does not have an output shaft seal, so a gasket is needed to prevent the transmission fluid from leaking.
Manufacturers tend to recommend different maintenance intervals based on the type of vehicle and intended use, but generally speaking, it`s safe to perform a transfer case fluid service every 30,000 miles.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Problem with transfer case
ANSWER : The two vehicles had different types of transfer case assemblies depending on if it has part time and automatic full time type systems. The differences between the two transfer cases may be more than just the shift motor swap. If you took the transfer case out of a part time suburban vehicle and tried to put it in a full time automatic type system, it may get damaged when driving. Also the internal gearing could be different between the two vehicles but that would be hard to tell. You can take a chance and try it or get the correct one for your vehicle.

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Can failure of a transfer case cause damage to a differential?
ANSWER : Hi there. Based on the mileage of your vehicle, its possible that the seal could have gone out on its own. A dynamic seal (seal on a shaft) will last for up to 80,000 miles on normal conditions, however, this depends on the engine load and where the vehicle is driven. Dirt and contamination can cause the seal to prematurely fail and causing the oil to leak out of the differential. First check the differential oil level. If there is no oil, then the seal was leaking and leaked out all of the oil. If the level is full or slightly low but within range, then the differential could have failed from either overloading the gears or causing an over-speeding condition and then an instant stop (usually when off-road). Its possible for the transfer case to fail and make the differential have a jolt to break a gear, but its more common to have the oil leak out or the gears to over-spin. If you need further assistance with replacing a damaged differential, then seek out a professional, such as one from Your Mechanic, to help you.

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Tranfer case keeps cracking
ANSWER : Hello. This is a very common problem with this design transfer cases of these years of Dodge vehicles. This is a design flaw that was fixed in newer versions of the transfer case. You can find many forums and complaints on the internet for this problem and the only fix I have seen is to try another one or JB weld the case crack. I do not recommend anything except replacement. Make sure to use the correct fluid for this transfer case and make sure it does not get low. Double check the driveshafts have good joints and any slip yokes are lubed.

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Are transfer cases engine specific? For example can I put a used 3.7L Transfer case in my car if my car is a 5.7L 4WD 2007 Jeep Grand Cherokee
ANSWER : Hello – transfer cases tend to be specific to the transmission, not the engine. In your case, your 5.7l Grand Cherokee has the 5-45RFE transmission, while the 3.7l equipped models use the W5A580 transmission. The major differences in the transmissions are the torque capacity they are designed to handle. This will also be true of the transfer cases – they have design limits for the power they can handle. The transmission rear case will be designed for the transfer case it is designed to use as well. I would recommend using only the transfer case designed for your engine and transmission.

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Want to know if the transfer case clutches from a 2000 Chevy 1/2 ton will work in my 2003 Chevy 1/2 ton.
ANSWER : Hi there. Both vehicles should have an NP 246 transfer case in them. Check the casting number on the transfer cases and make sure that they both say 246 on them. If so, then yes they are interchangeable and you can swap the parts. If the transfer cases are different, then they will not be interchangeable.

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Noise coming from transfer case. Not coming out of 4 wheel drive quadra drive II.
ANSWER : Hello. We will be happy to assist you. The issue your vehicle is having will be best pinpointed by technician. I suggest that you have a technician perform an inspection of your four wheel drive system to help find the cause of your noise. Normally when a transfer case makes noise it means that there’s internal damage and the transfer case must be replaced. A technician with a stethoscope will be able to trace the noise and where it is found to be loudest will be the part at fault. A transfer case for your vehicle should not be over 200 dollars if you can find it locally. A few months ago a lady came into my shop with a 2006 Jeep Liberty that had a bad transmission and transfer case. We were able to find her a transmission and transfer case from LKQ Pick Your Part for about $400. Keep in mind that you can find a technician to inspect your 4WD system here https://www.yourmechanic.com/services/loud-noises-when-car-is-put-in-gear-inspection

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Car losing oil, excessive transfer case fluid
ANSWER : Hello. These two systems are separate so they would not be related. If the transfer case is overfilled then it was either filled too high when it was last serviced or water got into it if you have driven through deep water. As for the oil loss, this is common on this engine. I first check the PCV system to make sure it is fine. If it is then the issue is bad valve stem seals. This is common and allows oil to enter the combustion chamber. The oil burns off without any signs as the catalytic converts get hot enough to burn it without smoking. If you need to have this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to inspect the cause of this issue.

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Oil from transfer case vent
ANSWER : Hi, thanks for writing in. A leak in the transfer case can cause a lot of serious issues. Tracing it can be done several ways. The most efficient way for tracking an honest leak is typically a dye test. This involves adding florescent dye to the transfer case, and finding where is seeps through with a fluorescent light. This is the easiest way to find all of the leaks (if there are more than one). Other common sources for minor leaks are the drain plug and inspection port. These simply screw in and can become loose. These also may have a washer or gasket that helps them seal. This should be inspected as well. Getting the leak fixed should be done immediately. Getting the transfer case replaced if it is run dry, can be a very expensive repair. Here at YourMechanic, we can have a technician come to your home or office to inspect and diagnose this issue for you, and make or suggest the necessary repairs.

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