Thanks guys. Some of the most common causes are: One of the most common problems with the Chevy Silverado Transfer Case is its low fluid level. While in reverse at approximately 5 mph, the contact heard a rattling noise coming from under the vehicle. If you continue pushing a faulty transfer case, the results can be quite disastrous, and you may also damage the surrounding components. The Advanced Transmission Center team consists of technicians who have decades of experience diagnosing, rebuilding and repairing transfer cases in domestic and import vehicles. Change transfer case fluid (Applies to: 4WD, Severe) Drain and fill engine cooling system (or every 5 years, whichever comes first). Tahoe chevrolet engine models cars chevy tahoe motor. The noise became louder and the contact later discovered that the bearing and timing chain were damaged. also keeps So its time to put your hands to work. We finally had a big enough snow this year to bring the people with 4WD problems out. After market parts have been developed to replace the cheap parts within the transfer case to prevent this from happening, unfortunately I did not research this issue prior to having the issue. After replacing it, you shouldnt run low on transmission fluid again. If you add too much, it will overflow and leak out. And the truck could get stuck in one gear. Can I Use H-Rated Tires Instead of V-Rated Tires? Therefore, it is better to check if the transfer case is installed properly when you encounter any of the above mentioned issues. The first symptom I noticed was that randomly the truck would be sitting in "auto 4wd." It seems that the housing is made of magnesium and is non similar metals. Damaged gears can also cause a fluid leak. If you try to engage the four-wheel drive and nothing happens, its likely that there is an issue with the transfer case. Be sure to use the correct type of fluid for your Chevy Silverado. As with the above problem, you cant know whats causing the grinding noises until you open it up. Causing thousands of dollars for repair. To find the leak, heres what you can do: After finding the pinhole, youll have to replace the case half. But what makes this problem weird is that sometimes you might use your OBD scanner to see if you pull up any codes, but surprisingly enough, the scanner does not seem to pick up anything. You can tell if the fluid is dirty by looking at it. When fluid is leaking from a broken seal, it reduces . This should not be happening on vehicles this new with little miles on them. After that, any issue youve run into should be gone. Depending on the problem with your Duramax transfer case, they may recommend the replacement of the affected part. The transfer case is filled with special gear oil. How Much Does a Chevy Silverado Weigh? 8AM 5:30PM Mon-Fri, Manual/Standard Transmission Repair & Service, Advanced Transmission Center Lakewood 1194 S Pierce St Lakewood, CO 80232, Advanced Transmission Center Westminster 3686 W. 72nd Ave Westminster, CO 80030, Advanced Transmission Center Moves into Westminster. After getting this part replaced, your vehicle should work as intended. never replace the hub sensors unless they are with damaged wires. One common problem for Silverados is issues with the transfer case. Any mechanical part on your car is vulnerable to wear and tear. It is located in between the transmission and the differential. Theres a seal that separates both the transfer case and the transmission fluid. Loss of power to the drive train is not something to ignore, from personal vehicles to public safety vehicles, this power loss could turn into something much larger than some atf stain in the driveway. Mine never did the other stuff. While accelerating to 10 mph, the contact heard a loud vibrating noise. This requires a pump inside of the case to circulate fluid while operating. This can cause your car to get stuck in neutral or have other problems. Came across a little crack in the truck connector to the encoder motor. The manufacturer was notified of the failure. Worn-out gears tend to grind; after some time, they fail altogether. I have 2001 Chevrolet 2500 hd 4x4 crew cab short box, with a 5 speed allison automatic with push button 4 wheel drive on the dash. give it a shot. Wrong clip on oil pump in transfer case wears hole in case . That was 5 or 6 years ago. I found many forums and solutions on the internet and one on NHTSA. Truck is currently at local dealership waiting for my approval to replace transfer case which has a pin hole in it and some other parts for $3100. Certain types of problems can be annoying to deal with. The Truck Fails to Go into a Four-Wheel Drive A Grinding Noise The Truck Vibrates The Service 4WD Light Blinks Leakage in the Transfer Case The Truck Won't Come Out of Neutral Why Do Transfer Case Problems Occur in a Chevy Silverado Low Fluid Level Dirty Fluid Worn Out Gears Improper Installation Accidental Damages Overheating and Rusting If you encounter such an issue, contact a mechanic right away. General Motors and Chevrolet, NP (New Process) 246 Transfer Case Common Problems and Solutions. The manufacturer was notified of the failure. Search Fixya Browse Categories . However, a failing transfer case can also manifest such a problem. The cost of replacing a transfer case depends on a number of factors. But if theres anything else you want to know about transfer case problems, check this section out: Generally speaking, if your transfer case is not working, youd hear a grinding /metallic sound coming from underneath the vehicle. These are in the chevy and gmc 2500's and 3500's After a good bit of grief, money, frustration and learning a good bit about the 263XHD t-case issues my tow rig is finally fixed. A transfer case leak is another common problem that owners of this truck face. Chevy Truck Transfer Case Noise 2.3 03. Can A Bad Coil Cause Knocking? See You might also notice that the fluid has splashed back on the underside of the vehicle and maybe on anything you might be towing. The seal that keeps fluid inside the transfer case and thus the transmission is vital for the smooth operation of the vehicle's transmission. For a better experience, please enable JavaScript in your browser before proceeding. But first, lets understand what a transfer case is. This morning I tried to switch to 4wd drive and realized it wasn't engaging. Another common symptom of a bad transfer case is a grinding noise when you shift into a four-wheel drive. Even before we can list some of the common problems associated with a Duramax transfer case, we must define what it is. The condition is typically intermittent and always occurs at key-up. GMC Jimmy, Suburban and Yukon and Full Size pickups 1981-1988. Ed. The transfer case is what allows your truck to shift into four-wheel drive. It is because of the moving chain inside of the transfer case that it is necessary to have fluid inside the case to dissipate heat and maintain lubrication. You should change it after 62,000 miles. They can diagnose the problem and recommend the best course of action. ), 5 Reasons Why You Should Not Buy a Jeep Gladiator [Explained! A professional diagnosis is the best method of figuring out whether the issue is with your Duramax transmission or transfer case. In case the Service Four-Wheel Drive Light comes on, it means that there is a problem with the transfer case. And when that happens, your transmission fluid can start leaking. Top 2008 Chevrolet Tahoe Problems 4WD Transfer Case Position Sensor/Selector Switch May Fail 483 people have reported this 193 The Upper Dash May Crack 447 people have reported this 227 Heating and AC Temperature and Air Delivery Mode Door Actuators . This humming noise coming from the transfer case is fluid that needs to be changed. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video. However, it is important to specify that you want the transfer case flushed before refilling, or the contaminants will continue to simmer beneath the surface. A leak in the transfer case can result in severe damage. Identified numerous complaints online on duramax trans missions, and identified an aftermarket product was made to prevent further cracks from occurring. 2001-Up GM Silverado 27 Spline Input NP263HD. I have service records showing all the repairs. The fluid level is the first thing you must check when your truck shows any of the signs mentioned earlier. The most common cause of this problem is a broken shift fork. However, when the vehicle is running and the pump is pressurizing the fluid, it will begin to escape through the hole in the case. Adding too much fluid can also be a problem. I have not yet had a problem with the brakes, yet, but I tell you, it will be looked into. However, if youve determined that theres no pinhole and the vehicle is still leaking fluid, then perhaps you have a broken tail-shaft seal. 6.0L motor, 4L80 transmission, 4WD, crew cab, 6.5' bed. This will include replacing the case half that has the hole in it and is not an inexpensive repair. If the service 4WD light comes on, it is a sign that the transfer case isnt working correctly. The vibration comes from the improper meshing of the gears. If youre running low on transmission fluid, youll have a hard time changing gear. 2003 Chevrolet silverado. 1. This problem occurs due to low fluid levels, contaminated fluids, or overheating. 04 chev silverado transfer case found out recently that my 04 2500hd with 111000 miles needed a new transfer case - Chevrolet 2004 Silverado 2500HD question. He list all the transfer cases so see if under the one you have list the pump rub fix kit. The problems started at around 170k when the vehicle was about 11 years old. However, he inspected the vehicle, but found nothing wrong. Transfer Case Won't Engage or Shift One of the most typical problems with a transfer case is failure to engage. . Worn-out gears make your truck fail to come out of neutral. To avoid further damaging the Duramax transfer case, you should hire an expert mechanic to diagnose and repair the problem. (Applies to: 4WD, Severe) Chevy Silverado Transfer Case problems can be caused by low fluid levels, dirty fluid, or worn-out gears. Low Transmission Fluid 2.5 05. First and foremost, raise the vehicle. Amazon Services LLC Associate program is known as an affiliate advertising program which supports sites to earn additional income, which is also known as advertising fees when they advertise and connect to Amazon.com, and other brands of Amazon.com, Inc. How To Remove Broken Oil Dipstick (With DIY Methods : 2023). Please give us a call or send us a message ASAP. After that, head over to the transfer case and loosen the nut. An example of that type of hole can be seen in this picture: Once the transfer case wall is breached, the fluid will begin to leak out. Usually, if the leak stops at the highest point, thats where its coming from. Chevy Silverado Transfer Case Problems and Solutions! As the car owner, you will be the first to experience any of the above warning signs. It isnt uncommon for trucks to vibrate a little during driving. In my case this happened on a residential street, if it would have happened on highway it could have resulted in a very bad accident. Instead, it wears out over time. JavaScript is disabled. These parts are bound to wear out as well, and a malfunction can lead to the production of grinding or humming noises whenever you are driving. It looks like a window motor and it sits on the rear of your transfer case. To fix this problem, replace the chain. Either do it yourself or hire an expert. Please note that this may signal a wide range of issues related to the vehicles 4WD system. Transfer case is full of clean oil, wiring harness at transfer case (including ground) has been disassembled and inspected carefully. If you dont know already, the shift fork is a tool for engaging gears in the transfer case. Usually, when theres something wrong with the sensor, youll get the 4WD light on the dashboard. There is a defect in the transfer case that results in a clip breaking loose and rubbing a hole in the rear housing, allowing the lubricant to leak out, which can cause the transfer case to fail and possibly locking up the wheels in an unexpected manner, causing a crash. Four Wheel Trends is dedicated to advancing the knowledge and education of automotive enthusiasts. 2) low on fluid 3) a piece of debris is lodged in the valve body spacer plate. But theres still some hope. 434 Answers It is the transfer case. A worn-out tail shaft seal will cause that, and it will need to be replaced. Cause The Transfer Case Control Module (TCCM) has not received the wake-up call during key-up and has remained in the "sleep mode". 4WD Does Not Work Properly 2.4 04. I realize that problems can happen with any manufacture, however this gm issue with a pinhole in the transfer case that is caused by an internal part that breaks and drivers losing power to the drive train is a regular occurrence. 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