Transfer case trouble
I got the truck with a transfer case that was locking up. So the "dealer" put another one and it stopped locking up but instead slowly rolls while in park and whines and slips on take off almost through first gear and then its fine. After a few months it burned out leaving me stranded out in the middle of no where. I got a rebuilt one from a place called transfer case express. I put it in and after the first day it started whining too but very faint. I have another rebuilt tcase waiting to go in but I need to find out whats going wrong before I mess this one up too.
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The rolling while in park should not have anything to do with the transfer case as this is a separate piece of the drivetrain controlled by the transmission. There is a pawl on the end of the transmission shaft (assuming this is the stock 4L60E transmission) that should keep the vehicle in park. As to the whining sound, I would first check to be sure the transmission and transfer case both have the correct amount of fluid in them. This can also be caused by a transmission pump or potentially a torque converter that is going out as well. Lastly, I would also recommend checking the U-joints for excessive play as this can also cause a whining sound as you describe.
How to Identify and Fix Common car Problems ?
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Noise from transfer case is a sign that you may have vehicle problems. Whining, growling, and humming are all bad transfer case sounds. This may come from a fluid leak or a mechanical problem like damaged gears. Another symptom other than noise from transfer case is the vehicle jumping in and out of four-wheel drive.
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.
As the shaft moves in and out, it misaligns with the gears and leaves a metal-to-metal contact that is not copacetic anymore. This then results in the transfer case grinding noise that you hear any time you shift between 2WD and 4WD. To fix this transfer case grinding noise, you`ll need to replace the broken snap ring.
If you hear grinding, growling, or humming noises that change with your vehicle speed, it may be coming from the transfer case. This could indicate a low fluid level or some mechanical problem such as bad bearings, loose chains or damaged gears.
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 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.
WHINING FROM THE TRANSFER CASE
Whining noises will usually be a product of something wrong in one or doth differentials. Driveshafts act to transmit many differential noises into the transfer case or transmission so that the sound appears right under the driver`s seat.
Sometimes PC fans making grinding noises is simply a sign that they are slowly dying. This is normal as any moving part in your PC is bound to fail. Usually changing fans is a rather inexpensive process so you should not worry too much about it.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Problem with transfer case
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.
Can failure of a transfer case cause damage to a differential?
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.
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
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.
Tranfer case keeps cracking
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.
Want to know if the transfer case clutches from a 2000 Chevy 1/2 ton will work in my 2003 Chevy 1/2 ton.
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.
Noise coming from transfer case. Not coming out of 4 wheel drive quadra drive II.
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
Do I need to get the transfer case fluid and transmission fluid changed?
Hi, thanks for writing in. I looked at your maintenance schedule for your vehicle and found that for up to 150,000 miles, it only says to inspect the fluid level and not change it. The fluids are special fluids and if you did need any work done (i.e. if there is a leak present or other mechanical problem) then make sure the correct Ford certified fluid is used.
When it is time for you to have your transmission fluid serviced, consider having a certified automotive technician from YourMechanic come to your home or office to perform the service for you.
Hope this helps and best of luck!
Oil from transfer case vent
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.