2005 duramax transfer case problems. Some towing, nothing more than 8,000lbs here and there.
2005 duramax transfer case problems Since I did an upgrade to my transfer case i. 0 Reply. dont rule out your transfer case, my brothers LB7 has a similar syptom but it will do it in any gear and at random times, no codes. A new transfer case motor will cost you around $200. Buy Monthly Payments , As Low as 0% APR up to 2004. e. Looked for what was up and found a nasty leak. Ever since its debut in 1988, the GMC Sierra is considered to be one of the most reliable pickup trucks on the market, but even as such it had a few unimpressive model years. If no communication, go to step 2. If not then you'll want to look into finding a new case, it won't last much longer more than likely. The transfer case control module will run a relearn at vehicle start up to determine transfer case position. I noticed a noise under the truck, climb under and could push up and down on the drive shaft at the transfer case and had movement. Top After receiving the new wear pads from Merchant I found this video extremely helpful in putting the case back together. 5-2005 Chevy Silverado or GMC Sierra 2500HD/3500HD. Make sure you solve the pump rub problem while you are putting it back together. My truck is an 04 Lb7 ccsb 2500hd it has 311k on it the rebuilt trans has probably 12k on it now but I’m thinking my transfer case is on it’s way out,recently when towing my skid steer (around 11k) the truck acts like it doesn’t have the power it should and it’s thrown a p0735 I have a transfer case leak that I can not seem to trace. Top Contributors this Month View All. It sends a voltage to your switch panel and gets a voltage back. I used Delvac 50W synthetic in the T-case and Delvac 75W-90 synthetic in the rear diff. 2004-2005 2006: See Below ACDelco A1618C ACDelco A3087C: Coolant: 50/50 mixture of Dex-Cool 12346290 and Water: I noticed a leak on the transfer case. I had it towed to a dealer and they said the transfer case was full of metal pieces. So I just got done pulling the case. Transfer cases are built to be workhorses, but they may fail eventually. ob_1jr. 5 LB7 Duramax Powertrain. The second on blew when I drove it Transmission fluid leaking at transmission/transfer case junction. There are many reasons why a vehicle’s 4WD system won’t engage or disengage. The idea is to observe the mechanism for proper operation, as an assistant cycles the transfer case through the different ranges. The oil only leaks when the truck is moving. Customer. If so, you have issues, and you need to pull the transfer case. The bottom bolts holding the transfer case halves together were leaking. 2. Purchased '99 4x4 automatic 5. 10:1, LTX265/70R17 My problem turned out to be the transfer case. Method 1: The Easy Ways to reset the transfer case control module [su_note note_color=”#fafadd”] It’s called the easy way because you won’t need extra tools to reset the transfer case control module. Got a BAD vibration between 65-75mph, especially bad when accelerating. 5" diamond eye 2005 LLY CC SB 4X4 Ranch Hand Bumpers, 265/75/16 BFG'S A/T'S, EGR Blocked and FingerSticked, MB Gunner 8 Wheels, Transfer Case LB7 Duramax 261XHD 263XHD Once you follow the above link click on either the 261XHD(manual floor shift) or 263XHD(push button) picture . so I hope there are no cracks Duramaxdiesels. One thing that I learned about this trade is that a good visual inspection will reveal the problem 85% of the time (so they say). General Motors and Chevrolet, NP (New Process) 246 Transfer Case Common Problems and Solutions. Transfer Case Problems. What Causes Transfer Case Control Module Problems? The transfer case control module on your Silverado can go wrong for several reasons. When the TCCM is in the "sleep mode", it will not communicate with the class II bus or the Tech 2®. Anyone else had this problem? Im just Just bought my 04 lly in aug. The hole is created by a broken clip that is supposed to hold the pump from rubbing on the case. I searched the forum for similar problems with no luck. The encoder ring can see where the position of the transfer case 2005 Chevy Trailblazer LT, 2-Door, - U100 Class 2 Serial Communication Problem (Current) 9. ALHeadUSMC. 5 LB7 Duramax Powertrain UH. Older Chevy Silverados are prone to developing holes in the transfer case which causes the fluids to leak out. 2016 Duramax Second Generation: 2004. I ran into a some problems maybe you know better. 2L Diesel Engine Fuel System, Air, Exhaust & Emissions Hey guys I had my trans rebuilt by a reputable builder local to me back in October of last year. The issue could be due to anything from a faulty shift mechanism on the front axle to an electrical fault in the control GM replaced Transfer Case at 65,000 miles due to leakage. 0, 4L80E, NV263, AAM 10. In this video, Andy explains some of those problems you may face with your vehic It might also be an indicator of an internal transfer case problem. Please turn off your ad blocker. I have been there, purchased items from them, they are real. Sounds like maybe pump rub in the transfer case has let all the oil There are some common problems with the transfer case in GM trucks and SUVs. Slowed down and got off at the next exit. I watched it twice and had no problems with the install. About 55,000mi on it. and reinstalled about 100 miles ago. Im not sure were to start with this and would love any help. Top Contributors this Month 11 Most Common LLY Duramax Problems and Fixes. I just replaced mine (all same problems) and all is good. 2005 4x4 Silverado Z71 with 140k miles and a New Process Gear 246GM Transfer Case. The problem is the fluid will not flow through the cooler when its that cold. Ended up cracking the extension housing when the bushing walked out and shook the tail of the transfer case. A pretty bad one. 2005 Duramax LLy Banks Ram Air intake,Kodiak mouth piece, Banks exhaust turbo back, Replaced transfer case with rebuilt unit; problems solved . It was beyond my skill set to rebuild the transfer case. Then, remove Some of the problems that come with the Chevy Silverado transfer case are the truck failing to go into four-wheel mode, grinding noises, the truck vibrating, and a leak in the transfer case. And also I am not getting any warning light as 2005 CCSB Z71 Silverado, Factory 5. i have decided that the transmission is staying in gear and running great and hence non codes. Works as it should and no leaks. As I would push up, I could hear a "tap" "tap" inside the center of the case. After I do not want to spend $2500 on a new transfer case but also do not want to do something that might not be completely necessary. The root cause ranges from electrical faults in the control system to defective shift mechanisms. Even before we can list some of the common problems associated with a Duramax transfer case, we must define what it is. 2005 Chevrolet duramax 4x4. I A very common issue I see in my shop all the time, the transfer case does not have to be replaced. Anyone else ever have this happen? Am I in for a new transmission too? Any feedback is appreciated. The case is made of magnesuim. We have been driving Chevys for I have had a 2001 Chevy 2500 Duramax 4x4 for about 3 years. That can be a big problem when you’re a situation where 4WD is necessary. it was tough to tell that because you cant really feel the shift fork position when you have the electric pushbutton t-case. $1200 with $150 core charge minus transfer case. I assume its the rear main seal. Jump to Latest now new brakes all around atc175k questionive heard the transfer case get a leak in the housing because of a pump vibration wear , I got the anti rub plate kit. Are there any specific codes I should be looking for? Chevy Mechanic: DarrenD41. Didn't fix any of my prior problems, only created MORE problems! MEMBER Did I mention the transfer case rebuild prior to the RSInhibited problem. Improve air flow by 73% over stock with the AFE Turbo Inlet Manifold for 2004-2005 LLY Duramax trucks. The LLY Duramax trucks came equipped from the factory with either a New Process NP261 transfer case or NP263 transfer case (also known as a New Venture NV261 / NV263 or GM 261XHD / GM 263XHD). 2005 Duramax LLY, My dad's got an '04 2500HD 6. I just My name is Dan, I drive a 2005 2500hd ccsb lly 4x4, victory red, Efi live :gearjamin Robs trans safe tunes, This month, we’re exposing a common problem found in the NP261XHD and NP263XHD transfer cases found in four-wheel-drive ’01 to ’07 Chevy and GMCs (and basically every four-wheel-drive GM Replace Transfer Case Fluid: 50,000 miles: 80,000 Km: Replace Rear Differential Fluid: Front end failures are one of the most common LLY Duramax problems. 2005 Silverado 2500HD 6. Pump rub is very often fatal to transfer cases because in many cases the vehicle is What years are affected by transfer case pump rub and does it affect both manually shifted and auto. The past few months my 4wd low has failed to work on my truck. Since it’s not always that easy, our . 5 they used a new case built by Magna Powertrain model MP1626XHD which is not susceptible to the pump rub failure. 5L 1999 k3500 dually 6. 5-2005 (LLY) 2005 LLY 2500HD Trasfer case life. 5 LB7 Duramax Powertrain Bessey55. my indication of trouble was when the transfercase didnt want to shift to 4WD last winter, on the range selector it went to neutral. I came to the conclusion it is the encoder motor. Right now this is all the media I have on this problem. Chevy and Transmission issues. I drive a 2005 2500hd ccsb lly 4x4, victory red, Efi live :gearjamin Robs trans safe tunes, Possible the transfer case is causing problems- the trans The Transfer Case Control Module (TCCM) has not received the wake-up call during key-up and has remained in the "sleep mode". I couldn't hear the noise on the freeway I took it into the mechanic today and they called saying there were significant metal shavings in the transfer case fluid and recommended a replace at My transfer case recently starting leaking quite a bit around the bolts/gasket. Inside the encoder motor, is an encoder ring. 4WD Will Not Engage/Disengage. Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. also the adapter harness appears to go somewhere into a big harness , reality is it just goes into the See relevant content for wheelpursuit. the transfer case had rubbed a hole in the housing and lost the oil, i think this accelerated the fork wear but it may have been seperate issues. The switch's have different resistors. Correction 1. This was a problem with all trucks using the NP263 transfer case along with a whole bunch of other ones in that family of New Process cases used in tons of vehicles, not just our trucks. They'll either ship to you or you can pick up the transmission yourself. In early 2012, we noticed a leak in 9. I found this out because I read the code with my boss's scanner and it read speed sensor A. While this is a direct replacement transfer case, it includes upgraded parts to improve the performance and prevent future problems. Duramax Second Generation: 2004. As I Now occasionally the transfer case will slip out of gear when I’m having the EXACT same problem now with my 07 3500 classic duramax. Pulling the t-case is pretty easy work if it If any of these methods work, you won’t have to go to the repair shop or replace the whole transfer case. Thanks for any help or comments. @mike: the ally was upgraded 2 years ago including the transfer case brace from suncoast, the truck has approx. pump upgrade, I checked all the existing wires/plugs going to the transfercase nothing seems to be a problem. Click here For, when the seal might be your only problem. Remove both driveshafts. The transfer case control module is the module between the transfer case switch and the transfer case motor that lets the two communicate with each other. I got home after a 3 hour highway drive. If it is from the the Transfer case it is normally a symptom of a bad lo/hi clutch component. mp06011999 226 Replies. “Pump Rub” and unfortunately from our experience it is a matter of WHEN not IF a stock 1998-2007 GM transfer case will experience a pump rub failure. Dropping into neutral under Acceleration or Deceleration could still be from the Transfer case. @ 10786 on the 4500HD. 57diesel 2005 K2500 Triple Dog 5" from downpipe: and it will slide right out of the transfer case. Bingo! - Titus Vote Rand Paul for President 2016. I'm seeing a weekness in the tranfer cases. I Crawl under there an look. 5 LB7 Forums. 01-04. im doing this just to document my rebuild and share what i found. The second is the four wheel drive switch (transfer case switch) on the dash, this is the least expensive of the possible problems about $40. 5L Front end completely rebuilt 1989 k2500 5. 2004. 2005-LLY 3500 LS DRW Crew Cab, reading about it and I am glad I did because my clip was broken and my case had about 1/8 of an inch groove in the case so its definitely a real problem . Went ahead and changed the nsbu switch and I no longer have park, I have reverse, reverse, neutral, drive, 3, 2, 1. When a transfer case fails, one of these two scenarios can happen: If you have a part time 4WD, the transfer case may not want to shift into 4WD. 5-2010 GM 6. 9509 posts · Joined 2005 Add to quote; Only show this Changed my oil last night and got the chance to use the naighbors lift instead of laying on my back :rockin Well when I got a great view of everything I saw the Transfer case is leaking where the driveshaft comes out. Going to use the same in the front when I can get the truck away from the wife. Chances are you have pump rub and it has trashed a bearing in the xfer case. This transfer case is a direct replacement transfer case for 2001-2007 Duramax equipped trucks with a factory 261XHD transfer case. There is a representative of a manufacturer of transmission parts that wrote a paper in a trade publication around this pump rub problem recommending overfilling the transfer case to 3 qts and instead using synthetic 5w-30. OM calls out these weights and synthetics for all 3 gearsets. All sensors Transfer case in neutral when shifting transmission into gear If the transfer case control system Ok so I need help I have a 2005 gmc sierra 2500 hd LLY 6. It transfers powerfrom the transmission to the rear and front See more Excessive use of RTV between the transfer case halves during field service assembly may cause the oil pickup screen to become plugged. Try to communicate with the TCCM. Was doing a service today and when I was under the truck having a look around I seen some oil leaking from the transfer case. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright hi , that Vehicle Speed Sensor Adapter is just a solid plastic part that has 2 solid wires going through it . I was pulling a 6x12 trailer that with its contents weighs about 2500 pounds. 7L Suburban, He serviced my transfer case in 2020 and added anti-leak agent along with green dye. This may result in a transfer GM has had issues with its regular New Process transfer cases with a problem called "pump rub". I'm installing a new transfer case (263xhd) on my '03 2500hd duramax this weekend and am looking for advice on what to watch out for. Tags From what I've seen the grinding is most likely coming from the transfer case but I've never heard of a bad transfer case causing no reverse. The rear case half of this unit is made out of magnesium and So I was having issues with the transmission going into what seemed like neutral at highway speeds, it would happen when i was just putting around, didn't seem to do it when I was getting on it, would be cruising along and it would do the neutral thing, then u let off, and it would catch again and away you would go. it has been -35 here in MT a couple of days and I have noticed slightly more than a small amount of red fluid under my Duramax after a Just changed the fluid in the transfer case and rear diff. I don't think its the hole in the transfer case rub through problem that most Duramax's have, due to the location of where the ATF is Duramax Second Generation: 2004. Shop at DmaxStore for your Duramax Upgraded transfer case for 2001-2007 Chevy Silverado/GMC Sierra 6. com and it comes w/ a rub plate to install on the new case to prevent it from happening again. What year truck? That speed sensor can be removed (18 or 19mm socket, be careful, it's plastic) and the tone ring in question is there. A transfer case plays a crucial role in a Duramax engine. If it feels loose, pull the rear driveshaft and see if you can move the output shaft of the transfer case up and down a lot. 2005 Black Duramax Crew Cab Short Box Edge Juice w/Attitude - 4" straight pipe T-case is leaking blue fluid very slowly. I have a 2006 chevy silverado 2500hd 4x4 duramax. 6L LBZ Duramax; 2007. 5", 4. No sense rebuilding it if still works. 2L '06 Saab 9-7x 5. 5 2500HD LLY Duramax 4x4 Extended cab Regular box Straightpipe, LBZ Turbo mouthpiece 250,000km/155,000mi on When the transfer case goes dry, this case suffers "pump rub" and basically the pump shaft wears a hole through the aluminum transfer case wall. 6L LB7/LLY/LBZ trucks with a Dmax XD shifts into 4wd hi/low gear no problem. 2L Diesel Engine Fuel System, Air, Exhaust & Emissions Upgrades. 2L '11 Caprice PPV 6. It has about 86,000 miles on it. If your transfer case is leaking from the drain plug, you just won the transfer case problem lottery. mp06011999 194 Replies. The after market makes aluminum rear case halves to replace the damaged After reviewing a number of threads on the duramax forums, I decided to change my transfer case fluid (Dex VI) at 43k miles. The "service 4wd" like comes on Hey all,just signed up. Heard of the pump rub problem and after inspecting the T-case it seems there is a crapload of silicone in exact spot where it is said to I know, I did search it like crazy, and only found 2 post where they had this issue. how do I determine what transfer case I have? 02 2500 Duramax? Save Share Sort by Oldest first Oldest first Newest first Most reactions. transfer cases? I thought I had a brake problem as ti started out like a brake squeal on the final part of stopping. It keeps blowing the transfer case shift module. 0L '08 Avalanche LTZ 6. It was all on the Duramax Second Generation: 2004. OH transfer case Bump for an old thread! Having the same problem with my transfer case and pulled it apart last night. I can hear what I think is the actuator in the transfer case. After all, it’s not everyone is knowledgeable in mechanical lingo. There is a great deal of information out there on Pull the speed sensor out of the transfer case and see if you can wiggle the tone ring. Buying one requires a careful scanning of the market and getting to know the best picks reliability-wise, as well as the worst GMC Sierra years to avoid. Chevy / GMC Duramax 01-04. com. I have replaced the transfer case motor 12474401, panel switch 19168767, and the transfer case shift module 12577410 on a 2002 GMC YUKON. Depending on the voltage the tccm gets back it sends a signal to the transfer case encoder motor. I replaced the I know, I did search it like crazy, and only found 2 post where they had this issue. Some towing, nothing more than 8,000lbs here and there. i re-built the transmission and i saw nothing wrong with any of the parts in replaced and the vehicle still goes into a neatral feel at random times. Our trucks used this case from 99-2007, in 2007. 5. 07 LBZ SLT 4X4 CrewCab/SB,445k. To replace a transfer case motor: You must drop the front drive shaft. 3L '07 TB LS 4. This can affect Silverados and other GM trucks from 2001 to 2007 equipped with 4WD since the transfer case is responsible for sending power to the front wheels. If communication is possible, go to For years now, the problem of the dreaded pump rub has crept up on unsuspecting GM truck owners and bitten with a vengeance. 5-2005 GM 6. Top Contributors this Transfer case control module. . 2005 duramax lly 1999 suburban 6. Just tighten it up and you should be good to go. 7L (Rest in peace. I was going about 55 mph and the transfer case simply disintegrated. I posted about it on here a while back but had no luck getting it to engage. This is one problem I have never seen or heard of. A. 5000 miles since then and 20000 at all. 3, 06 Front Clip, Cooper AT3/Ion 171's, Transfer Cases - Transfer Case Warehouse - Rebuild Kits - Duramax Transfer Case. The old t-case made no noise like this when it was working Look into rebuild parts if you can do it yourself, they aren't too bad to rebuild. 0L gasser with the manual floor shifter. This is where a spacer breaks its ONE measly spacing clip and the edges I have a 2005 chev D/A and just replaced the t-case it clunks or bangs when going into 4x4. Ok, I got the pump rub. About a quarter size spot after running truck for over 10 minutes. Transfer case and possibe transmission problems. I have been under the truck for about 5 hours. 0L 2021 Sierra Elevation 3. Hello, what a nice place. 2002 GMC 2500 Duramax 6 INCH STACKS, 35" nitto grapplers, 17 Dick Cepek wheels, four inch lift, Get New 263XHD Transfer Case, LB7 LLY LBZ 2001-2007, Duramax at Dans Diesel . I noticed a leak on the transfer case. com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. 57diesel 102 Replies. Assembing the case, I made sure I it was in neutral as indicated by the input tang on the side of the case pointed straight down in the 6 o'clock position. Save Share Reply Quote Like. Remove all sensor plugs and selector motor plug Remove the nuts on the tranny side of the t-case Remove the trans crossmember Hey guys. I guess I'm just lucky! 2001 GMC Sierra 3500 Crewcab 4X4 DMax/Allison Dually (Now Duramax Second Generation: 2004. Four-wheel drive (4WD) not engaging or disengaging: There are many reasons for 4WD to be disengaging or not engaging. at first it wouldnt let me use Chevy / GMC Duramax 01-04. i have an 02 Duramax. This is a difficult job as, oftentimes, these components are rusty and hard to remove. The pump rub problem was fixed several years and at least 100k miles ago using the Merchant kit. 2005 Chevy 2500HD Duramax LLY BANKS ram air intake, MBRP 4" exhaust, CAT DELETE and NO MUFFLER, EGR Deleted, Fisher SS ExtremeV plow, Auto Meter Gauges, Boost, A GM transfer case should last at least 100,000 miles. Transfer Case - 1 code - U100 Class 2 Serial Communication Problem '02 TB EXT 4. Come I ran across a very old post on Yahoo answers concerning the ABS sensor location of a truck like mine. Turns out the transfer case was dry and the chain broke. After I pulled him out, I got a code thrown at me along with ABS and BRAKE lights and I immediately entered limp mode. 3. Upgraded transfer case for 2001-2007 Chevy Silverado/GMC Sierra 6. I ordered a case half from KennedyDiesel. Since 2005 A forum I have a 2002 Chevrolet Silverado 2500HD with 188,000 miles and am happy to report that I have had very problems with it other than usual The new transfer case is supposed to have an updated clip in it but when I installed Duramax Second Generation: 2004. 6 duramax drove once since I replaced Call carguts, it's out of south carolina, number is 1-866-839-2708, 2005 gmc sierra 4x4 5 speed allison transmission with 90 day warranty with 38,000 miles. My 4wd light will light up as if it engaged. Ongoing. Something like the hi/lo shift fork spring is broke, shift fork wear pads are wore out or hi/lo planetary gear thrust washer has excessive wear. If there are any issues with the rotational position sensor (RPS), incremental position sensor (IPS), encoder motor, motor A or B circuits, RPS or IPS circuits when the transfer case control module attempts to determine location the location cannot be I have a 2002 Duramax crewcab 4x4 with EFI live set on lowest setting I believe 20 HP. 6L LMM Duramax; 2011-2016 GM 6. the wiring harness for the 2wd is extended to the rear vss on the transfer case , the Vehicle Speed Sensor Adapter just hooks the 2 wiring harnesses together . The third is the Transfer case control module. I rebuilt the transfer case recently From what we have discussed up until now it sounds like the problem is in the transfer case. I haven't seen another sensor on the transmission that looks anything like the one on the t case. 6L LB7/LLY/LBZ trucks with a Dmax XD transfer case. The pump on the inside is torquing wearing a hole in the case. 6L LML Duramax; You may also witness more symptoms if the transfer case module fails, such as the engine light coming on, the module getting hot to the touch, producing strange noises, or creating a burning smell. I'd fix the pump rub problem, JB weld the case, fill it up with fluid and use it. Don’t A Transfer Case is a fundamental part of the 4WD drive system on your 2004. Leaking ATF between tranny and transfer case. The transfer case may have an internal problem. According to their expert, the ABS system on the 2500 4WD truck's ABS sensors consist of a pair on the front (left & right) and a single sensor in the tail shaft of the transfer case that serves as both a wheel speed sensor AND the ABS sensor. 2016 GMC - SLT 3500 single wheel Double cab 4x4 stock cured the problem put in a GM rebuilt t-case all is good . NP263xhd was rebuild. I had the standard problem with the transfer case getting a hole in it from the oil pump three years ago. It pops out Transfer Case Pump Upgrade Kit I have heard of guys that had the hole, then put in the kit and just JB Welded the hole shut and it has lasted Transfer case blew apart while driving to work. The tips of the glow plugs can actually break off inside the Also do the 01 to 07 use the same transfer case. When this occurs fluid Transfer Case issue I did see a newer Yukon with same problem. I have replaced 2. and no problems shifting in and out of 4H. 0L Duramax This site is funded by you! The transfer case had been slipping into neutral. It looks like a pretty easy swap. I backed the bolts out a bit, put 2005 LLY SLT CC/SB 4X4 PPE Standard level II, MBRP SS 4" with down pipe, PCV reroute, Chevy and GMC Duramax Diesel 2005 Silverado HD 2500 Transfer Case Problem. Went to put it in 4wd yesterday and nothing. I would just keep a close 2005 GMC 2500 LLY Crew cab long bed 4x4. 5-2005 (LLY) 6. Then tap the seal out and tap a new one in place. Hello. I bought and installed a reconditioned one. 6L LLY Duramax; 2006-2007 GM 6. But be sure to keep an eye on it for a few days after you tighten it. This is the easiest problem to fix among the four most common causes of transfer case leaks. Severed wires from my speed sensor on the transfer case the other day after I went and pulled my friend out of the Oceano dunes.