I suspected wheel hubs but they checked and said the hubs are fine. I didn't put two and two together about the tread depth. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. Should take you between 4-5 qts. I continued to slow down until I could engage the transmission again at around 30 mph in 3rd gear. Turned engine on, shifted transmission into d and felt transmission engage apparently, transfer case had engaged from neutral. Back to the dealer I go.
Old part referenced as sun gear or sprag gear breakage between 4-wheel driver transfer case and transmission. Only after putting truck in park lots of grinding noises then pressing the 4wheel button then back to 2wheel sometimes through two cycles the truck will back into gear and operate properly. Goes away once speeds are less than 30mph. Said they put in some go in the crack and it doesnt need replaced. Part is under back order and will take an unknown amount of time to fix. We guarantee you, our customer, that all of our remanufactured transfer cases have been rebuilt using only the highest quality, high impact, replacement components. Cost more labor to take the case down than to install a new pin.
Pull the plug, and stick your pinky into the hole, you should be able to feel the lubricant just below the hole, if not it is in dire need of a filling. So off I go for a road test with a tech from the dealer. Took it to a transmission shop put it on the diagnostic machine and no error codes were given to give reason why the transfer case disengages randomly. So a few months back I developed a slight noise at speed. Thanks for your help Spruce.
It took the dealer three attempts, but they finally figured out one of the struts was bad. When I started slowing down to turn into the driveway at work, I heard a nasty whining sound coming from the front of the truck. We can exchange your current transfer case for you, or provide a direct drop in replacement unit sent to your home or business address. Be carefull taking out that fill plug. I have a 600 mi.
I guess I'll just keep the meatier tires on the rear for a while to wear them down and keep up on my rotations after that. Other owners are experiencing the same problem around the same mileage. Shifted transmission into 3, accelerated gradually and drove down highway, transfer case remained in 2wd hi. He tells me to engage the 4 auto button and low and behold the noise goes away. Any help would be great.
We've set the bar for excellent customer service, giving detailed attention to every aspect of your selection, purchase, and shipping experience. Now when I lost the t-case a few weeks ago, I spent probably 15 mins talking to the service advisor on the phone before any work was done about the slight noise that had developed in the past few weeks, then low and behold my t-case breaks shortly thereafter. This might be a crazy thought, but have you looked at the rubber seals around your front window? I want to get another set of wheels with all new tires on them and switch them out just to confirm but I don't know when I will get the change to do that. This is easily fixed on those by dropping the rear driveshaft and then there are four bolts that hold the tailshaft area of the T-case on that can be pulled of to expose this clip area. The front axle is starting the same thing, leaking, hot smell and noise. Mechanic found both fine and small pieces of metal in the front 4X4 transmission case, but said this was not a big problem. Proven Force a Car Parts Facility and Installation Repair Center can help you with your Avalanche Transfer Case.
Transmission would not engage gears except park. Mechanic found some play in the driveline U-joints, right rear axle and pinion shaft, and some noise coming from the differential. Proven Force a major vehicle re-builder of four wheel drive transfer cases, as well as provider for light, medium vehicles parts and repairs with greater than 38 years experence. It's ridiculous that this could have happened; I could have lost control of my vehicle and had a serious accident. Basically the magnesium alloy is too soft when heated - Found that Sonnax has designed a new Pump Plate - Fixed! They went through and rebuilt the front but it did not fix the problem. I'm now back to thinking its drivetrain related.
I wanted to ask though, did you read anywhere that you had to flush the transfer case of the old stuff completely? I went to the dealer and got the plug with the 18mm bolt head on it. The old stuff didn't look bad at all. That would be a little easier, seeing as you wouldn't have to jack it up twice. Im gunna snap my crayons. Coasted to a stop onto shoulder, shifted into park, released foot brake, vehicle began to roll forward downhill , apparently because transfer case shifted into neutral. No codes had code reader in glove box.
They claim to have thoroughly gone over all of the problems and have repaired everything, but the 4wd system is still not functional. Shipping and Handling Charges will be added. My truck is making a similar noise, but when I put it on the jackstands I couldnt hear it. Part failed under acceleration nearly causing a crash. We bring a stethoscope so I can try and narrow down the noise. This has been happening off and on for a few months now but in very limited occasions and never for more than 10-20 seconds so I haven't contacted a service station but will definitely do so this weekend as I am unable to leave work during the week for this issue. Transmission would not engage gears except park.