The NP208 transfer case is similar to the NP203 and NP205 cases, sharing a number of applications between them, though on the 208 the casing is made out of aluminum rather than iron.. Usage: Chevy Blazer, Suburban, and Tahoe from 1981-1988. Well, you might have a faulty encoder motor. It is not uncommon for trucks to get overheated. U-joints can be a pain in the neck to deal with. In this blog post, well discuss Chevy Silverado transfer case problems and how to fix them. He said she sent him the schematics for the case and all the relative components so we may be able to trouble shoot from that. Waiting too long can cause further. Duramax is one of the most powerful engines in the auto industry. What a shame that these and all other issues can't be addressed by gm. Chevy Silverado transfer case problems can be expensive to fix. Sometimes, your truck may refuse to come out of neutral. A transfer case plays a crucial role in a Duramax engine. never replace the hub sensors unless they are with damaged wires. Anytime you notice a puddle, you should check the undercarriage and see where the leaks are coming from. The problem is that the design is such that the hole is sitting above the level of the drain plug, so it doesn't leak while the vehicle is stopped. To get the truck back on the road, replace the encoder motor. Replacing a transfer case isnt cheap. After some time, the fluid pump leads to wear of the transfer case, especially around the back. The noise you hear is the chain rolling off the gear. Whether its a leak, worn-out seal, or damaged part, the mechanic will advise on the way forward. So, theres a good chance your transfer case is still in great shape. You can reach out to either location that is most convenient for you. It isnt uncommon for trucks to vibrate a little during driving. Instead, you would only be able to use the 2WD system. It is better to have it inspected as quickly as possible. While driving 5 mph, the vehicle hesitated prior to depressing the accelerator pedal. The problem is that the design is such that the hole is sitting above the level of the drain plug, so it doesnt leak while the vehicle is stopped. For GVW under 8600 lbs, change transfer case fluid, if equipped with 4WD. If you encounter such an issue, contact a mechanic right away. The switch assembly on the dash. The vehicle was taken to a dealer and an independent mechanic where it was diagnosed that the transfer case needed to be replaced. The problem: affected pickup trucks may have been delivered with a thrust washer that was improperly installed on the transfer case reduction carrier assembly at the factory. 434 Answers It is the transfer case. One of the most common lines of transfer cases from the 2000s had an embedded weak point that is costing many customers thousands to repair if not proactively addressed before a failure becomes present. Additionally, the transfer case did not contain any fluid. A damaged shift form wont engage the gears. Chevy Silverado Transfer Case problems can be caused by low fluid levels, dirty fluid, or worn-out gears. The transfer case was replaced at a cost of $ 2,033. In case there is a leak in the transfer case, the gears will not be properly lubricated and they will start to wear out. Its being called the infamous pump rub. Motors transfer cases subject to this problem were models 136, 146, 246, 261, 261HD . Are Pickup Trucks Safe For Babies? Repair cost approx. All you need to do is remove the old tail shaft seal, fit a new one, and you will be good to go. Westminster, CO 80030 The transfer chain does not stretch. You tell if the fluid is dirty just by looking at it. 2023 Four Wheel Trends. Instead of relying on a single shaft, it needs two different shafts to work. But theres still some hope. In order to save weight, GM made the case out of magnesium. Whats more, the truck will vibrate when it is in motion. The transfer case is what allows your truck to shift into four-wheel drive. As with many other posts here, I too have had problems with both the instrument cluster(bad speedometer and gauge readings, "electrical") and also the transfer case with holes wearing through the case, "pump slap". The vehicle was repaired, however the failure recurred several times. Having the transfer case rebuilt in a situation like this will cost you several thousand dollars. Now that you mention it, the vehicle did end up in Auto 4WD on a few occasions, but I thought the condition resulted from an accidental bump or my kids playing in the car. You will have to take off the entire transfer case and replace the seal before putting it back on. Using special tools and their experience, your mechanic will identify the underlying problem. I keep it clean so I just thought I bumped it while dusting it out. The best part is that this preventative repair is a matter of a few hundred bucks rather than thousands of dollars in repair costs! The failure mileage was 230,000. Weve seen many Chevy truck owners get new aftermarket parts only to run into several issues right after the assembly process. Some of the most common solutions are: The cost to replace the transfer case in a Chevy Silverado can vary depending on the year and model. This oil helps to lubricate the gears and prevents them from wearing out. This is a 2006 6. No specific event led to this incident other than faulty engineering. High Gear updates the 246 unit with a metal plate in between the pump and rear case half to reduce friction and vibration. Cover this product: 4-Year Auto Accessory Protection Plan $18.99 Learn more Another common culprit is leakages. So its time to put your hands to work. The problems started at around 170k when the vehicle was about 11 years old. What is an Odometer Statement and Why is it Important? Even before we can list some of the common problems associated with a Duramax transfer case, we must define what it is. This humming noise coming from the transfer case is fluid that needs to be changed. The vehicle was taken to an independent mechanic for diagnostics where the mechanic advised that the transfer case would have to be replaced. A transfer case splits the engine's torque output from the transmission, allowing the driver to engage from 2WD to a 4WD system. If theres any liquid, try to find the highest point. Let alone the transfer case. 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. : A Step-by-Step Guide [2023]. Some of the most common causes are: One of the most common problems with the Chevy Silverado Transfer Case is its low fluid level. The approximate failure mileage was 163,000. 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 . 7E8 and 7E9 Engine Codes: Meaning, Causes, Symptoms and Fixes, Broken Ball Joint in Your Car (Symptoms, Causes and Replacement), Haze on Windshield When It Rains (Causes and Fixes), Check the fluid level and add more if necessary, Have the transfer case flushed and refilled. . So, whats the best way to tell that this is the case? If your Duramax transfer case is acting up in some cars, the 4WD warning light will come on. As expected, youll have to replace the U-joint to get rid of the grinding noise. Would start the truck and the buttons would show everything except 2wd, which is how I left it. Four Wheel Trends is dedicated to advancing the knowledge and education of automotive enthusiasts. Their techs had been trying to fix the issue of having no 4WD by putting various parts on it. Save my name, email, and website in this browser for the next time I comment. Inside the transfer case, theres a fluid pump. They can help you diagnose the problem and recommend the best course of action. You must check your transfer case for leakage if you hear a whining noise while the truck is in four-wheel mode. . As an Amazon Associate, I earn from qualifying purchases. Version 3 Modified Released September 19, 2019 JavaScript is disabled. August will be 2 years since I replaced the encoder motor in the case. Certain types of problems can be annoying to deal with. 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. Even if you have no previous experience, you should still be able to get through this process. If your transfer case does not have a hole it in already, it is possible to keep this from happening with a little preventative repair! The transmission is fine, but there is a stress crack on the outer case. Worn-out gears can also cause the transfer case to leak. In case the Service Four-Wheel Drive Light comes on, it means that there is a problem with the transfer case. This seal keeps all these fluids from mixing together. If youre having trouble with your Chevy Silverados transfer case, the first thing you should do is check the fluid level. However, if youve determined that theres no pinhole and the vehicle is still leaking fluid, then perhaps you have a broken tail-shaft seal. How Much Does a Chevy Silverado Weigh? When this happens, the transfer chain itself will come loose. Most of the issues covered above can be easily prevented if the drivers kept a tight maintenance schedule. Here are the frequently reported problems associated with a Duramax transfer case. After cleaning the transfer case, you should be able to spot the tiny pinhole. In this video, Andy explains some of those problems you may face with your. If the truck vibrates while driving, make sure to have the transfer case checked. Common causes 1) T-case is in neutral or broken (does the truck roll in park?) Chevy Silverado Transfer Case Problems and Solutions! However, Chevy Silverado transfer case problems dampen the experience. However, if your Chevy Silverado vibrates too much, its time to examine your transfer case. This one was a 2008 Chevy Silverado 2500 HD. However, when the vehicle is running and the pump is pressurizing the fluid, it will begin to escape through the hole in the case. Therefore, it is better to check if the transfer case is installed properly when you encounter any of the above mentioned issues. Can A Bad Coil Cause Knocking? On November 17, 2014, I was stopped in the middle lane of a highway waiting to pull into business parking lot, when I accelerated to pull in, my truck moved forward and then would only rev up the rpm's, almost getting hit by on coming traffic on the highway, I coasted in the parking lot, as the rpm's were still up, the transmission engaged and the truck moved forward with a loud thump. As we already know, the transfer case gears can wear out with time. They pretty much have everything you need for this. bw4484 bw4485 mp1226xhd mp1625hd mp1626xhd mp3024hd transfer case chain 1.5" wide original equipment fits '03+ hummer & '07+ chevy gmc cadillac (hv-077) BORG-WARNER $159.77 $179.95 If your transfer case already has a hole in it caused by pump rub, there is unfortunately not much that can be done other than to completely rebuild the transfer case. One common problem for Silverados is issues with the transfer case. A bad installation can cause issues in the drivetrain, the transmission, and other truck components. You should also know that its never a good idea to assume new parts are in great shape just because theyre new. It looks like a window motor and it sits on the rear of your transfer case. When it does, a LOT of noise and a catastrophic failure are not far behind! The contact discovered that the transmission was leaking fluid while backing out of the driveway. Vehicle was in 4 wheel drive, when the whole truck shuttered, I lost the drive capabilities of the truck then stopped and looked underneath vehicle to find fluid coming out of the transfer case. 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. The transfer case is filled with a special type of oil called gear oil. 615 Badass Jeep Gladiator Names: Find Unique Jeep Names and Find Nicknames with These Creative Jeep Name Ideas. I just noticed the problem a couple of weeks ago. -Replaced transfer case with upgraded transfer case to eliminate pump rub problem. No codes nor "Service 4wd" messages are displayed. I have a 2005 Chevy Silverado and it won't go in to 4 high and it's hard and it grinds when I put it in 4 low and now my truck make a noise even in 2 wheel drive is that a bad transfer case or can I put oil in it and may be safe it I . The failure and current mileages were 82,000. I plowed the last 2 days and toggled bewteen 2wd and 4wd with no issues. I ended up getting it to back up last night. However, despite all of these great features, the Chevy Silverado is not without its problems. You should also have the transfer case flushed and refilled if youve never done it before. One of the most frequent Chevy Silverado transfer case issues is low transmission liquid. I'm not sure I had what you described with the failure to engage. The oil lubricates the gears and keeps them from wearing out. The VIN, engine size, and purchase date were unknown. If theres something wrong with them, youll hear a squealing sound when switching from 2WD to 4WD. If you havent replaced it before, theres a good chance its dirty. Brian The fluid level is the first thing you must check when your truck shows any of the signs mentioned earlier. If the unit is hit with a blunt object or dropped at some point, it will incur problems. See
Noticed transmission leaking, identified that the transfer case had cracked in the slots that hold the pump. Alternatively, if youre fond of working on your own projects, you can try to rebuild the transfer case. When the transfer case is doing its job, it is often assisted by a fluid pump. It can also be caused by a few other things. But the 4WD system works differently. Goes into four wheel drive on its on. 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). Remove the bolts and unplug the wiring connectors. Rusting is another common issue with transfer case units. Where older transfer cases were gear driven and had only a single gear ratio, modern transfer cases usually use a chain drive and have 2 gear ratios to provide more power options depending on driving conditions. There have been several complaints made, especially against its transfer case. also keeps water out just like a boat trailer hub assy. My case was found by tec before fall ire my brothers failed on a trip leaving him stranded. It is the sole responsibility of the viewer to assume this risk. Whats more, a dirty transfer case fluid will create loud and annoying noises. And when that happens, your transmission fluid can start leaking. The issue can be attributed to outside . It seems to be a big problem with the 2004 and 2005 models. The first step toward fixing a Duramax transfer case is identifying the root problem. Be the first to answer Feb 18, 2018 . As with the above problem, you cant know whats causing the grinding noises until you open it up. An inspection revealed the differential fluid had dropped from the transfer case, which in turn seized up. 1. The best way is to take your time.,Set Emerg brake,start vehicle and put into neutral..Engage 4 wheel drive,look at your dash gauge area for 4 wheel drive light to come on..Put truck in reverse and release park brake..,Back up . here is a test, put it in 4wd and turn the wheel tight (do this on the street or parking lot) then give it gas, half throttle or better, it the truck shudders, and bucks, the the chain is stretched and needs replacement. Worn-out gears make your truck fail to come out of neutral. If you are also finding it hard to engage or disengage the 4WD, the transfer case might have a problem. The Chevy Silverado is a great truck. As discussed above, one of the most common issues with a Chevy Silverado transfer case is low fluid level. What you will have to do is get it re-scanned for codes and get the code to us. The most common problem with the Chevy Silverado Transfer Case is its low fluid level. You should change it after 62,000 miles. Get the transfer case flushed and refilled. . (And How to Fix It). Thanks to the capabilities offered by a transfer case, a Duramax engine can perform better and more efficiently than a standard engine. Unlike dealerships or many independent repair shops, we are transmission specialists trained to fix issues related to a vehicle drive-train. . I found many forums and solutions on the internet and one on NHTSA. Lakewood CO 80232 In addition, I called a local repair shop to get an estimate for the transfer case replacement, I was told they repaired three in the last two weeks and two are in the shop for the same problem. At 117,000 miles my transfer case went out leaving me stranded luckily only 30 miles from home. If the service 4WD light comes on, it is a sign that the transfer case isnt working correctly. Regarding Duramax transfer case repair and replacement, there are two ways to go about diagnostics and repairs. give it a shot. 1: Transfer Case Leaking Seals If the transfer case begins to leak, the fluid reservoir of the case will begin to empty, and eventually, your vehicle will stop functioning. Therefore, it is better to assign the task to an experienced mechanic. There are several things you can do to fix Chevy Silverado transfer case problems. The noise became louder and the contact later discovered that the bearing and timing chain were damaged. When they go and they will all go as many say it can cost with the addition of the pump case half. That said, this article covers the 8 most common problems youll face with the Chevy Silverado. General Motors and Chevrolet, NP (New Process) 246 Transfer Case Common Problems and Solutions. Certain types of problems can be a pain in the drivetrain, the 4WD warning light will come on of! 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