Last post on Aug 08, 2013 at 10:50 PM
You are in the Volvo XC90
What is this discussion about?
#1266 of 1505 Re: 2006 Volvo XC90 leaky wheel [tlawrence70]
Aug 16, 2008 (2:54 pm)
A possibility is corrosion of the sealing surface of the wheel.
"Thoroughly cleaning the buildup of corrosion from the bead area on the rim is an important step whenever a tire is dismounted or mounted on an alloy rim. In addition, tire shops can apply a special sealer to the rim area to help seal the tire bead and prevent future air leaks." Link.
"I just had the same problem and I finally found a mechanic who fixed it by sanding the seats with 180 grit sandpaper until good clean aluminum is visible."Link.
But this source suggests that just sanding would be a very bad idea.
"Aggressive cleaning can trigger air leaks in alloy rims
When the air leak can be pinpointed to the bead area, the bead should be cleaned gently with a non-paint-removing solvent, the tire mounted and a quality bead sealer used. This should resolve any issues of leaks around the bead.
If the bead area has been cleaned so aggressively that the clearcoat is removed, the tire will leak at the bead. I've seen shops use a grinding wheel on the inside of a bead, then remount the tire with all the clearcoat gone.
After that kind of a cleanup, the inside of the bead area should be repainted. It doesn't have to be clearcoated; I fancy a nice neon colour myself.
The paint reseals the alloy and when it has dried and hardened, the tire can be mounted with bead sealer.
Wheel weights should not cause corrosion. The shop in question used incorrect weights: alloy wheels require plastic-coated weights that can't react with the alloy.
The corroded areas should be cleaned and sealer applied. If there are too many spots of corrosion around the bead and weights, you may have to have the wheel totally refinished.
Cost is about $125 a wheel. Or you could simply buy steel wheels for around $80 each. "
Aug 18, 2008 (12:48 pm)
Like others, I am trying to distinguish between the 2.5T and T6 models in the 2004 year. The engines are obviously different, but apparently so are the transmissions. I found the following quote at wikipedia:
"The 2.5T was the entry level version and offered a 2.5L 20 valve turbocharged inline 5 engine putting out 205hp and 236 lb-ft mated to an Aisin co-developed AW55-50/51 5 speed automatic. The T6 offered a 2.9L 24 valve twin turbocharged inline 6 with 268hp and 280lb-ft mated to a GM-sourced, Volvo modified 4T65EV/GT 4 speed automatic."
I have a 2004 2.5T AWD with 55k miles on it. I have not had any problems until last week when the electrical system went crazy similar to some others here. Unfortunately nobody seems to have found a common solution, and neither has my dealer since after 'fixing' it, it did it again this weekend and was towed back this morning. So it appears that I don't have the tranny issues like the T6, but perhaps wheel bearings and some of the other issues on this forum. However, everyone should remember that all car forums like this bring in the folks with the problems, so caution should be exercised before making any decisions (like the one I'm facing...).
Like many others I am not interested in a car that is not dependable after the warranty is up. I was a bit concerned with buying a Volvo since dependability is always a requirement.I like not having a car payment but perhaps a lease will be required going forward for the wife/family car...
Perhaps the 2.5T owners should start their own thread to distinguish from the T6 flaws...
#1268 of 1505 Re: 2.5T transmission [wirelessbitz]
Aug 18, 2008 (2:03 pm)
However, as I believe the engine and tranny are the only major differences between the 2 models, I think this place is fine for all to co-exist. There is a thread dedicated to just the T6 tranny. I believe that should suffice. Just my opinion, of course.
#1269 of 1505 Known problems with V8??
Aug 24, 2008 (7:20 am)
We're considering trading in our '06 XC70--which has been the best of the 3 Volvos I've owned--for an '08 XC90 V8 simply because we could use the extra seats. Is anyone aware of transmission, tire or other problems with this particular model (V8)? We need AWD and are, therefore, not considering the 6-cylinder.
I really appreciate the help!
#1270 of 1505 Re: Known problems with V8?? [anninainohio]
Aug 24, 2008 (8:18 am)
You can get AWD with the 6-cyl, and it should get better mpg than the 8-cyl.
#1271 of 1505 Re: Known problems with V8?? [jim314]
Aug 24, 2008 (12:08 pm)
You can get AWD with the 6-cyl, and it should get better mpg than the 8-cyl.
About 2 mpg better than the V8.
#1272 of 1505 Re: Known problems with V8?? [volvomax]
Aug 24, 2008 (7:46 pm)
With all the problems posted here on the "VOLVO XC90 V6 Transmission" page, I'm scared off of buying a 6-cylinder model. In fact, that's the reason I posted my original message, i.e. I'm trying to determine whether all the transmission and tire problems on the 6-cyl also affected the V8 model? Thanks!
#1273 of 1505 Re: Known problems with V8?? [anninainohio]
Aug 25, 2008 (3:40 am)
The tranny problem was with the Volvo XC90 T6 (not a V6 engine) . The 6-cylinder engine in the 2007 and later Volvo XC 90 3.2 is a non-turbocharged inline 6-cylinder engine (I6) with a different tranny from the problem one in the T6.
On the highway my wife's 2007 XC90 3.2 I6 FWD gets as much as 26 mpg. I would bet that the I6 will get as much as 4 mpg better than the V8. The 3.2L I6 is a brand new engine design.
I think the V8 and the I6 have the same 6-speed auto tranny made by Aisin in Japan. I think this is the AWTF-80 SC, but I wish Volvomax would confirm on this.
From Wikipedia, the free encyclopedia
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The Aisin AWTF-80 SC is a 6 speed automatic transmission designed for use in transverse engine applications. It is designed to handle a maximum of 440 N·m (324.5 ft·lbf) of torque. It is built in Anjo, Japan. It is also called the TF80-SC, AF40-6, AM6 and AW6A-EL.
The design team set out to create a 6 speed automatic that fits in the same space as a manual gearbox. It measures 358 mm (14.1 in) in length and weighs 90 kg (198 lb). Its combined use of a conventional 5-pinion planetary gearset and a compound Ravignaux gearset makes it incredibly light and compact. This combination is known as a Lepelletier arrangement. The shifting of gears is managed by a sophisticated computer programme which over-sees a clutch-to-clutch actuation. Gear changes are accomplished by one clutch engaging the instant the clutch from the previous gear disengages. The transmission control module (TCM) is located inside the transmission housing, instead of being located outside it. The advantage of this is to reduce external wiring as well as to provide a constant environment for TCM operation which encourages longevity. One aspect of the advanced nature of the electronics is at idle, it automatically selects neutral gear to reduce internal temperatures and improves fuel economy.
It utilises a special AW-1 transmission fluid which is labelled as being maintenance free. It has a fluid capacity of 8.0L (8.45qt).
All wheel drive transfer cases can be fitted to the AWTF-80 SC, making it ideal for use in cross-over type SUVs.
http://www.autoweek.com/apps/pbcs.dll/article?AID=/20050614/FREE/506140704&Searc- - hID=73295944060540
#1274 of 1505 Re: Known problems with V8?? [jim314]
Aug 25, 2008 (8:58 am)
3.2 and V8 do share the same transmission.
V8 is capable of 25 MPG cruising on the highway.
#1275 of 1505 Re: Known problems with V8?? [volvomax]
Aug 25, 2008 (10:24 am)
1. Am I right that the V8 is only AWD?
2. Am I right that the base 3.2 I6 is FWD, but AWD is an option? So for the 3.2 AWD must be ordered from the factory, right?.
3. Who is the manufacturer of the V8 engine?