Showing posts with label Differential. Show all posts
Showing posts with label Differential. Show all posts

Saturday, 20 March 2021

Volvo And Land Rover Differential Problems

Volvo And Land Rover Differential Problems





One thing that we pride in here at AMC, is our ability to diagnose, first understand why the problem occurred - understanding the 鈥渨hy鈥?is the key to preventing a reoccurrence, and then designing a durable solution to the problem. By durable, we mean minimally giving the service life of the replaced part, ideally longer. On teardown inspection of this rear differential, we confirmed that the bearing and race for the pinion gear had failed, and the pinion gear was nearly seized, very tight and difficult to turn by hand. The inside of the differential was a mass of shinny metal flakes from the failed bearing, and the fluid smelled severely burned. Fortunately the rest of the differential and Haldex drive system were intact and undamaged, so a proper and through cleaning, inspection and precision rebuild were in order. The concept of disassembling and rebuilding a mechanism like a Haldex differential is not common today, but here鈥檚 where Atlantic Motorcar shines.





It's a good compromise between the organic feel of wood and industrial presentation of aluminum or carbon fiber, and since it's unique, no one can say it looks like faux-anything. All the controls fall readily to hand and are easy to use, including the three HVAC knobs that sit below the navigation screen, offering a well-oiled, expensive feel when manipulated. Below those, you'll find a chintzier pair of heated seat switches and the car's optional push-button start, though there still remains an ungainly plastic panel covering the hole where the standard ignition would have been on the steering column. The DVD-based navigation system was unremarkable, which is to say it gets you to Point B no better or worse than the competition. The seven-inch touchscreen also interfaces with the Bose ten-speaker, 333-watt surround sound system. Six CDs can be inserted behind the screen, and it also tilts up a few degrees to reduce glare on sunny days. The large tach and speedo are also easy-to-read and jump out with orange-on-blue backlighting. There is a small LCD screen that sits atop the center console, but it attempts to convey more information than its real estate can comfortably handle.





The car market in western markets is far too sophisticated to buy on price alone. As my dad used to say: More haste, less speed. Korea: Having established their reputation on price, they are now trying to prove themselves on quality. I must say that they are doing a good job on that front. It's hard to make money at the bottom end of the price market and the Chinese will be there soon enough so the timing is right. It takes awhile to gain a reputation. It won't happen overnight but it will happen, as long as they keep quality as their focus. Italy: After a rough ride where the Italian (read Fiat Group) lost their way, things are looking better. Product is improving and reliability issues are being resolved. They mustn't take their eye off the ball though, as the car market of today is so competitive. An Italian style must be maintained to offer something different too. UK: The death of MGR as the last locally owned volume maker could have made the UK's inclusion redundant. However, it still has local brands with a strong identity that is uniquely British. Land Rover, Bentley and Aston Martin will consolidate but must get their average carbon emissions down, which they are all working on I'm sure. Jaguar will do well with the XF but chasing big volumes isn't where Jaguar ought to be. UK Japanese factories are all getting close to capacity with production so no problems there. I admire their sticking with a high cost country rather than 'doing a Peugeot' and going east. Overall a solid market but reaching a ceiling volume wise.





SITUATION: A 'TRANSMISSION FAULT - TRACTION REDUCED' MESSAGE MAY BE DISPLAYED ON THE INSTRUMENT CLUSTER. UPON DIAGNOSIS, DIAGNOSTIC TROUBLE CODE (DTC) P1889-14 IS FOUND TO BE STORED. SITUATION: A 'TRANSMISSION FAULT - TRACTION REDUCED' MESSAGE MAY BE DISPLAYED ON THE INSTRUMENT CLUSTER. UPON DIAGNOSIS, DIAGNOSTIC TROUBLE CODE (DTC) P1889-14 IS FOUND TO BE STORED. SITUATION: ONE OR MORE FO THE FOLLOWING ISSUES MAY BE EVIDENT WHEN USING THE SMART KEY: ? SMART KEY NOT FOUND' MESSAGE DISPLAYED IN THE INSTRUMENT CLUSTER; ? ENGINE FAILS TO CRANK; ? ISSUE: LOSS OF ALL WHEEL DRIVE FUNCTIONALITY CAUSING THE VEHICLE TO OPERATE IN 2 WHEEL DRIVE ONLY. SITUATION: CONDENSATION/MIST MAY APPEAR ON THE INSIDE OF FRONT AND/OR REAR EXTERIOR LAMPS. CAUSE: CONDENSATION/MIST IS A NATURAL PHENOMENON WHICH CAN OCCUR WHEN THERE IS A TEMPERATURE DIFFERENCE BETWEEN THE INSIDE AND OF THE LAMP UNIT. SITUATION: THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED AND DIAGNOSTIC TROUBLE CODE (DTC) P008B IS STORED IN THE ENGINE CONTROL MODULE (ECM).

Friday, 15 January 2021

Volvo And Land Rover Differential Problems

Volvo And Land Rover Differential Problems





This 2010 Volvo XC70 came to us with about 96K miles, and a loud noise coming from the rear of the vehicle. The noise was noticeable at low and moderate speeds while driving, and sounded like a loud whine or hum depending on vehicle speed. Initially this noise sounded like a defective wheel bearing but on further exam we determined the noise was in fact coming from the rear differential, the gear system that transmits force from the transmission to the rear wheels. We鈥檝e seen this before, both on the later model Volvo and the Land Rover LR2 vehicles, and it鈥檚 not a good sign. This differential design has been in use in the Volvo world since the 2008 to at least the 2014 model year, so it鈥檚 something to consider if you own a vehicle in that range. We service a tremendous amount of Volvo XC70s, and have seen the problem largely on those models, but have read reports of it being an issue on the S80 as well. Now the earlier Volvos had their own set of differential or bevel gear problems, which you can read about on our blog at Volvo AOC problems.





Petrescu, C. Misiano and F.I.T. Petrescu et al., 2016g. From structural colors to super-hydrophobicity and achromatic transparent protective coatings: Ion plating plasma assisted TiO2 and SiO2 Nano-film deposition. Aversa, R., R.V. Petrescu, F.I.T. Petrescu and A. Apicella, 2016h Biomimetic and Evolutionary Design Driven Innovation in Sustainable Products Development, Am. Aversa, R., R.V. Petrescu, A. Apicella and F.I.T. Petrescu, 2016i. Mitochondria are naturally micro robots-a review. Aversa, R., R.V. Petrescu, A. Apicella and F.I.T. Petrescu, 2016j. We are addicted to vitamins C and E-A review. Aversa, R., R.V. Petrescu, A. Apicella and F.I.T. Petrescu, 2016k. Physiologic human fluids and swelling behavior of hydrophilic biocompatible hybrid ceramo-polymeric materials. Aversa, R., R.V. Petrescu, A. Apicella and F.I.T. Petrescu, 2016l. One can slow down the aging through antioxidants. Aversa, R., R.V. Petrescu, A. Apicella and F.I.T. Petrescu, 2016m. About homeopathy or jSimilia similibus curenturk. Aversa, R., R.V. Petrescu, A. Apicella and F.I.T. Petrescu, 2016n. The basic elements of life's. Aversa, R., F.I.T. Petrescu, R.V. Petrescu and A. Apicella, 2016o. Flexible stem trabecular prostheses. Mirsayar, M.M., V.A. Joneidi, R.V.V. Petrescu, F.I.T. Petrescu and F. Berto, 2017 Extended MTSN criterion for fracture analysis of soda lime glass. Petrescu, R.V. and F.I. Petrescu, 2013a. Lockheed Martin. Petrescu, R.V. and F.I. Petrescu, R.V. and F.I. Petrescu, 2013c. The Aviation History or New Aircraft I Color. Petrescu, F.I. and R.V. Petrescu, 2012. New Aircraft II. Petrescu, F.I. and R.V. Petrescu, 2011. Memories About Flight. Petrescu, F.I.T., 2009. New aircraft. Proceedings of the 3rd International Conference on Computational Mechanics, Oct. 29-30, Brasov, Romania. Petrescu, R.V.V., R. Aversa, A. Apicella, F. Berto and S. Li et al., 2016a. Ecosphere protection through green energy. Petrescu, F.I.T., A. Apicella, R.V.V. Petrescu, S.P. Kozaitis and R.B. Bucinell et al., 2016b. Environmental protection through nuclear energy. Petrescu, Relly Victoria; Aversa, Raffaella; Akash, Bilal; Corchado, Juan; Berto, Filippo; Mirsayar, MirMilad; Apicella, Antonio; Petrescu, Florian Ion Tiberiu; 2017f What is a UFO?





Land Rover's Special Vehicle Operations team has less to do than initially planned. Land Rover scrapped plans for an ultra-opulent Range Rover SV Coupe in late January, and now we learn that the hardcore Discovery SVX off-roader is no longer headed to production. Autocar reported the model's death on Friday, though Jaguar-Land Rover spokesman Nathan Hoyt told Motor Authority the final decision was made months ago. The brand quietly sent a bulletin to customers who had placed orders for the Discovery SVX to explain the model was no longer planned. Notably, the SUV added JLR's supercharged 5.0-liter V-8 engine to the Discovery lineup. Hoyt told MA, which effectively killed the Discovery SVX's shot at production. He added the SVX badge isn't going away, however. It will live on for other models, perhaps on a rumored Defender SVX. Land Rover design chief Gerry McGovern said in 2017 that the SVX would "arguably" be right at home on the 2021 Defender. The Discovery SVX first graced the world in concept form at the 2017 Frankfurt Motor Show. At that time, Land Rover declared a production version would follow in late 2018. That timeframe came and went, and now we know the SUV's final fate. 3.2 billion cost-cutting plan to boost savings and cash flow through 2020. In January, JLR also announced it would cut 4,500 jobs as part of the cost-cutting measures outlined in the plan. Jaguar Land Rover and other British automakers face an uncertain future in the face of undetermined Brexit plan. A so-called no-deal Brexit, in which no trade deals are negotiated, would prove very costly to British car brands. It's not all gloom, though. Land Rover this week unveiled its long-rumored turbocharged inline-6 engine, which will debut in the Range Rover Sport HST. The inline-6 joins the Ingenium family of engines and replaces the ancient and inefficient 3.0-liter supercharged V-6.





Firewood has been a problem for us every year on the Great Farm. Not availability: we're surrounded by wood: we own or lease about 14 acres of prime New England woodlot, capable, by the traditional estimate, of delivering the same number of cords of wood each year. Far more than we use. But finding the work time to cut, buck, split, stack and dry the four or five cords or more we should really have piled up each year, that has often defeated me. This year I gave up on making wood during the wet spring when the tractor couldn't move in the woodlot, and instead did a huge insulation project. So now I have to buy in some more "outside" wood. This means money, which is tight, and work time, which is also tight. One place I know will deliver. 600, but that wood generally isn't dry enough. Most sellers also sell stuff that's way too green.





The new 2020 Land Rover Defender is almost upon us, and spy videos have been popping up left and right of test mules tooling around public streets. This latest video, courtesy of Pistonheads, isn't from a public street, though鈥攊t's from the Nurburgring. The Green Hell isn't the first place you'd think Defender owners would go, and yet, engineers have taken it upon themselves to get some lapping done during one of the track's industry test pool sessions. The driver isn't going easy, either鈥攜ou can see the truck swaying as it enters corners, and hear its tire squeal for dear life. There's no telling what Land Rover could be testing here鈥攊t could be anything, from how the car handles sharp turns in direction to how its transmission reacts to elevation changes. Normal cars get tested there all the time, not just sports cars. It's just strange to see a car so out of place. Though, this does give us hope for some Defender track day lightweight special. In our dreams, anyway.