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  1. General Discussion (Gen 2)
    Just curious and want to know: Do two-wheel drive Siennas (FWD) have a differential? Isn't a differential more common in AWD or 4x4 drive vehicles?
  2. General Discussion (Gen 2)
    Hi everybody: I've been glued to this forum for a few weeks now - really an amazing community of Sienna enthusiasts. I have certainly caught the fever. I'm going to be purchasing a late 2nd Gen (2010 I hope) or early 3rd Gen (2012 hopefully) and have a question about the AWD for off-road...
  3. Problems, Maintenance, and Repair (Gen 1)
    Hey guys!Hoping I can get some advice from here! About 2 weeks ago I purchased a 1999 Sienna LE for my sister to drive in the winter time. The van has 130k miles and it has a grinding noise from the front. I initially thought it was just a wheel bearing but the grinding noise in coming from...
  4. Problems, Maintenance, and Repair (Gen 3)
    I just bought a used 2008 awd sienna with 98 k on it. Unfortunately, I bought it as as and after two days from buying it I discovered that it has a front differential leak from the housing and it is going to cost 2000-2700$. I know it looks stupid to buy such car but I don't have expertise in...
  5. Problems, Maintenance, and Repair (Gen 1)
    Hello guys! I need your advice: I own Sienna 1998 (VIN WUO21575) and after front driver`s side CV Axle and Seal replacement transmission fluid is leaking from the place where Axle goes into Differential. What could be the reason of that problem? Thanks!
  6. Anything Sienna
    Hi! I have a 2006 Toyota Sienna AWD with about 120,000 miles. Take it into a local garage for regular oil changes and fluid top-up's. On my last trip, they claimed to have checked the fluid in the rear differential and wrote the following: REAR DIFFERENTIAL IS LEAKING IS VERY ROTTED AND...
  7. Problems, Maintenance, and Repair (Gen 2)
    Hello All, I have a 2007 Toyota Sienna LE, front wheel drive. I'm going through my Scheduled Maintenance Guide and it says something about checking the front differential oil. I did a search of this site and couldn't find anything. Has anyone ever done this? I'd like to do it myself. Thanks
  8. Problems, Maintenance, and Repair (Gen 3)
    Hi everyone, My wife's van has 72,300 mostly highway miles on it. Yesterday morning it rode home on a wrecker after something let go on the freeway and started making quite a racket and shaking the whole van. I first thought she simply hit something on the highway, but after taking a good...
  9. Problems, Maintenance, and Repair (Gen 2)
    My front differential has a leak, not 100% sure if it is coming from a seal or something else. I can post some pictures soon. Any common leak problems with this? Is it something that should be left to the professionals to tackle or is it worth attempting a self repair?
  10. Mods and Projects (Gen 2)
    I recently bought a couple of Waverunners and was concerned about water entering the rear differential of my AWD Sienna when backing into the lake, mostly due to waves. I decided to remove the vent (see...
  11. General Discussion (Gen 2)
    I was under the van today taking a look at things when I noticed the one of the rear differential bushings (the front one) was shot. Apparently Toyota in their infinite wisdom, does not sell a separate bushing - you have to buy the whole assembly at the cost of ~$200. I'm going to try to...
  12. General Discussion (Gen 2)
    Can anyone tell me where the rear differential vent is located? I don't have any leaks, but when I'm driving and come to a stop at as stop light or such, I can smell diff fluid. It's almost like its either vented inside or near the cabin air intake.
  13. General Discussion (Gen 2)
    The rear diff on my van is leaking from what looks like where the axel stub comes out the drivers side. Is this common, and does anyone know the easiest way to change this seal?
  14. Problems & Issues
    I have a 2004 Sienna and the rear differential is leaking out of one of the axle stub seals. The rubber bushing on the diff mout is shot. I have this mount ordered. What is the propper procedure/ easiest way for changing the output seals? Is this a common problem with these AWD vans? Would...
  15. Sienna Care & Maintenance
    I have a Sienna 2000 XLE with 168000 miles on it. I bought it new and it still runs absolutely fine. Her transmission and differential were drained and refilled at 90000 miles service by Toyota dealership in 2005. The pan was also dropped and cleaned. Since then, I started changing...
  16. General Discussion (Gen 2)
    Hi everyone. I have a 2006 AWD Sienna with 111,000 miles and I want to replace the rear differential oil as part of my regular maintenance plan. Does anyone know what type/weight it is? Does anyone have any recommendations as to whether I should use an aftermarket oil manufacturer's oil for this...
  17. General Discussion (Gen 2)
    My mechanic noticed a rubber bushing was cracking on my right rear differential support arm. The arm is in good condition but the only way to get a replacement bushing is to order the arm which is $280.00. Does anyone know if there is another solution to replacing the bushing without ordering...
  18. Sienna Care & Maintenance
    My mechanic noticed a rubber bushing was cracking on my right rear differential support arm. The arm is in good condition but the only way to get a replacement bushing is to order the arm which is $280.00. Does anyone know if there is another solution to replacing the bushing without ordering...
  19. Sienna Care & Maintenance
    My rear differential started leaking, occasionally I would find one or two drops of oil on the garage floor. I looked under and noticed that it was leaking through one of the oil seals, long story short, it was being caused by the vent being seized, this is one of those parts I thought to be...
  20. How To Guides / Do It Yourself Instructions
    Almost 15k miles with 2008 LE AWD. It's time to do my first gear oil change. I'm thinking of using a Mobil1 gear oil. Can anyone post how-to instruction? which gear oil? Thanks in advance.
1-20 of 20 Results