is it possible to roll back with cvt on the hill?

General Discussion forum for Versa Owners
ele
Posts: 17
Joined: Fri May 16, 2008 7:35 pm

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How can a car with cvt roll back on the hill, what causing it? I was waiting for a green light uphill, then took my foot from the breaks to go, but the car rolled back as with manual transmission Have anybody experience something similar?


BBISHOPPCM
Posts: 1074
Joined: Thu Jan 11, 2007 1:38 pm
Car: '06 Nissan Murano S AWD w/ Convenience Pkg

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Yes, this is a characteristic of the CVT transmission. In order to prevent the CVT's steel drive-belt from slipping during hard acceleration, the transmission employs a unique fluid that reportedly contains microscopic rubber "balls," and a very mild torque converter. It is the mild ("weak") torque converter that reduces not only the hill-holding ability, but the engine braking as well. You'll get used to it. You may also notice the car accelerates like a sling shot (starts off slow, but rapidly gains torque). You won't even notice this after a few months. A few more things to know about the CVT; This is not your grandfather's four-speed automatic! the maintenance requirements are very different. First off, you do not have an owner-accessible dipstick; unless you see fluid leaking, there is no need to worry about the condition or fluid level. It is wise to have the fluid inspected every 30,000 miles; most dealers will not charge for this if combined with an oil change, or other routine maintenance. The fluid needs to be checked via computer for viscosity. One of the reasons the dipstick is blocked off from the owner is because if someone even accidentally pours the wrong fluid, or a CVT fluid from amother manufacturer, it will likely destroy the transmission in short order. So, even if you could check it yourself, you'd still be stuck shelling out $20/qt at the dealer. Supposedly, this fluid will last well over 60,000 miles (better than 30k for conventional automatic transaxle fluid!).

Shad0wXCalibur
Posts: 622
Joined: Wed Apr 23, 2008 10:02 am
Car: Nissan Versa SL Sedan

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Uh.. regular automatics do that if the hill is steep enough.

Andrews Chalmers
Posts: 487
Joined: Sat Aug 18, 2007 5:38 pm
Car: Versa '07 SL CVT

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ele wrote:How can a car with cvt roll back on the hill, what causing it? I was waiting for a green light uphill, then took my foot from the breaks to go, but the car rolled back as with manual transmission Have anybody experience something similar?
All transmissions do that...

ele
Posts: 17
Joined: Fri May 16, 2008 7:35 pm

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oh, i am glad that it is not something to bring back to the dealership I did some research prior to buying the car (did not read anything about rolling back), but i should do some more. Do you know maybe any useful links?

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frankoV
Posts: 943
Joined: Tue Jan 01, 2008 2:36 pm
Car: 2008 SL Sedan, Magnetic Grey, CVT

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use the search button above . . . you'll find just about everything you'll need to find . . . and if you don't . . . start a new thread . . . you'll quickly be answered.

faction
Posts: 122
Joined: Wed Jun 13, 2007 5:19 pm
Car: Versa

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ele wrote:How can a car with cvt roll back on the hill, what causing it?

BBISHOPPCM wrote:Yes, this is a characteristic of the CVT transmission. In order to prevent the CVT's steel drive-belt from slipping during hard acceleration, the transmission employs a unique fluid that reportedly contains microscopic rubber "balls," and a very mild torque converter. It is the mild ("weak") torque converter that reduces not only the hill-holding ability, but the engine braking as well. ....
HA! and here I was going tosay "Gravity".apparently it's more complicated than that! Don't tell my physics professor!



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