Usually, there must be noises in any moving car so long as the internal parts are working. Transfer cases are the key components of the 2005 Jeep Grand Cherokee vehicle. The transfer cases function by giving the drivers permission to shift operation modes. The transfer case is found at the rear in all cars, consisting of four operation modes. For instance, the neutral, four-low, four-high, and two-neutral modes.
Transfer case noise results from different causes within the car that you need to find the reasons before fixing them. Sometimes, the transfer case may fail to function normally, such as unwanted and unusual humming and clicking noises. For a car to be in a good state, there must be fewer noises that the owner is comfortable with.
The article describes the common causes of transfer case noise and the recommended steps of troubleshooting the problems. There are the frequently asked questions and lastly, the conclusion.
Causes of transfer case noise
1. Dirty fluid
Accumulation of dirt and sludge on the fluid or lubricant results in clogging of the pipes that allow straight movement of the fluid from the source to the destination. Once the lines have been blocked, the fluid fails to move and function normally, resulting in transfer case noise.
Therefore, it is essential to inspect the lubricant and fluid used for any dirt and sludge accumulation. Also, consider changing the fluid regularly and changing the fluid filter more often. Finally, consider using the correct fluid and lubricant during replacement to avoid corrosion of the metal components present in the transfer case.
2. Less transfer case fluid
Decreasing lubricant or fluid is the common cause of transfer case noise generation. Low fluid in most situations can result in the production of unwanted transfer case noise indicating failing transfer cases. The decreased fluid level in the transfer case hinders regular lubrication of transfer case components.
Once the transfer case metals are prevented from lubricating freely, they start producing unwanted sound. The more the situation is ignored, the larger the damage and increased repair costs. Therefore, it is recommended for the driver to troubleshoot the problem instantly before other parts are damaged.
The first step of troubleshooting the problem is by refilling the transfer case with the recommended fluid. Ensure the liquid does not overflow or leak. Further, test the transfer case by starting the engine to identify any noise produced. Finally, consider contacting a skilled mechanic if the problem persists.
3. Damaged or improperly installed vehicle gears
Improper installation of the Jeep gears, such as the side gears, usually results in the generation of the transfer case noise. If the vehicle packs are incorrectly installed, some vehicle components are restricted from moving freely. Therefore, it is essential to inspect the vehicle gears to see if they are incorrectly installed.
Moreover, consider replacing the damaged vehicle gears with new gears. Ensure you buy gears of high quality from the licensed seller to avoid continuous production of transfer case noise. Finally, ensure the replacement gears match and correctly fit the 2005 Jeep Grand Cherokee vehicle, and the gears are recommended by the manufacturer in the manufacturer’s manual book.
4. Loosely attached transfer case chains
Sometimes, chains installed in or near the transfer case may become loose. Loose chains produce a lot of noise when in operation. To troubleshoot the problem, first, collect all materials required such as screwdriver, new chain, wrench, lubricant, etc. lubricant is usually applied on the chains to function well without any difficulties.
A screwdriver and a wrench can tighten the chains to prevent noise generation, and a twist is usually used with the screwdriver. Using a screwdriver or any other equipment recommended by the manufacturer, tighten the chains correctly and apply the recommended lubricant or oil to allow chains to move without producing any clicking sound.
Avoid using too much lubricant and tighten the chains firmly as the chains will break or crack. Also, pulling the chains firmly restricts their movement, thus preventing the correct functioning of the transfer case.
Some lubricants and fluids react negatively with the metal parts present in the transfer case. Incorrect fluid and lubricant fail to lubricate the chains resulting in noise generation in the transfer case. Replacing the fluid or lubricant requires you to consult the manufacturer before purchasing any liquid for replacement.
Steps on how to fix the transfer case noise problem
The following steps describe how to troubleshoot the transfer case problem before contacting a skilled mechanic.
Step 1: Collect all materials required
Materials required include; a funnel, gear oil or fluid, wrench, draining bucket, funnel, oil filter, pry bar, ratchet, tape, rubber mallet, etc. Ensure you collect all equipment to avoid any distractions during the troubleshooting process.
Step 2: Disconnect the rear driveshaft from its position
First, using penetrating spray oil, spray the end of the rear driveshaft. The penetrating spray oil makes it easier when screwing back the rear driveshaft without any problems. Using a screwdriver, unbolt all bolts holding the rear driveshaft in position. If the bolts have accumulated rust, consider using other tools such as a mini-hacksaw, bolt cutter, etc.
Ensure you use the tools carefully to avoid damaging other vehicle components. Once all the screws have been removed, place a draining bucket underneath and force the latter to drain into the draining bucket using a pry bar. Pay more attention to avoid losing the bearings after all the latter has been exhausted.
Step 3: Disconnect the rear driveshaft
Pull out the rear driveshaft from the transfer case. Ensure you handle the rear driveshaft carefully. Failure to follow the instructions on driving the car can cause more significant damage to your system.
Step 4: Disengage the tail shaft housing
Using a screwdriver and a wrench, unscrew all screws holding the tail shaft housing. Place the bucket under the tile shaft housing and drain all fluid. Pull out the tail shaft housing using a rubber mallet and inspect the condition of the tile shaft housing.
Step 5: Reinstall the new snap ring
If the snap ring is damaged beyond repair, consider replacing it with a new one to get accurate results. Ensure you install the snap ring to its correct position.
Step 6: Screw the locking ring
Using a screwdriver, hold the locking ring in position to prevent it from falling off.
Step 7: Remove all dirt around the output shaft
Get rid of all dirt around the output shaft using a new razor blade. Clean all areas around the tail shaft and lubricate with a gasket maker.
Step 8: Replace the rear driveshaft
Reinstall the rear driveshaft and secure it using a screwdriver and screws.
Step 8: Fill the transfer case with the recommended fluid
After installing all other components, replace the fluid and screw the snap ring back to its position. Test if the noise has been eliminated. If not, consider repeating the process above or contacting a professional mechanic.
Every car owner wants to have the car and use it for a more extended period which can only occur depending on how you handle your vehicle. Prolonging the lifespan of the transfer case requires constant checkups and servicing. Therefore, it is advisable to inspect your car frequently to solve any problems early to avoid long-term damages such as engine damage.
Finally, remember to follow the manufacturer’s instructions in the manual book. If you experience any noise in the transfer case, use the steps above to troubleshoot the problem. If the process fails to work for you, consider consulting a technician to help you fix the issues with your case noise.