CVT Transmission slipping? - Nissan Murano Forum
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post #1 of 17 Old 07-23-2011, 01:58 AM Thread Starter
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CVT Transmission slipping?

Got an issue with my 06 Murano. It seems the transmission is slipping because when I push on the gas pedal, the rpm revs up real high like a slipping clutch. Is this normal?

Especially driving up a hill I have to push more gas so the car is literally reving to around 3K to keep the car moving. It gets annoying then when I try to keep up with traffic my car revs way up then it settles down when I'm driving a steady speed.

I have about 99,600 miles on the car now. Will a transmission oil change help it at all? Thanks for the help.
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post #2 of 17 Old 07-23-2011, 05:21 PM
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How long have you owned a vehicle? If you purchased the vehicle recently, you are probably unfamiliar with how the CVT works - it is supposed to have that slipping sensation (one reason why some people do not like CVTs) but at the same time, the reason why it "slips" is because the gear ratio is continuously being adjusted (hence the lack of a continuously increasing rev) which makes for more efficient driving, both for economy and power.

If you get the transmission fluid changed, make sure you only use Nissan NS-2 CVT fluid.

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post #3 of 17 Old 07-24-2011, 04:54 PM
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Sounds to me like the car is working exactly as it's supposed to. You need to do some reading on how a CVT works.

When climbing a long, steep hill the engine speed should vary as the transmission balances load and gearing. There are no shifts.

When entering a freeway, I nail the throttle down and watch the tach climb to 6000 RPM while the car accelerates like mad. Great fun!!

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post #4 of 17 Old 07-25-2011, 04:17 AM
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If this was not happening before, then it is possible there is something wrong. Are you getting a very delayed acceleration response after stepping on the gas pedal? Is it high reving for a long time--few seconds before the car moves? It should not be the case normally. Mind you though, the Mo is slow in accelerating from stop. But once its moving its actually quicker.
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post #5 of 17 Old 07-29-2011, 04:34 AM
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Do you smell the bands burning? Put it in drive, step on the brake, and give it gas...can you feel it slipping? Does it start to smell? More than likely it's going out, but the CVT is fully warrantied to 120K miles...so if it is slipping, you should get a replacement from Nissan at no cost. The downside is that you'll be without a car for about three days unless you have a rental agreement in your contract. I don't believe there are any band adjustments you can make on a CVT.. and I've never seen any documentation or discussions on being able to adjust them.

2009 Murano LE, white/tan, 48K miles; with all the amenities you can pack into this thing. Whoever had it first was obviously a doo-dad guy. Can't watch DVD movies because the headrest screens are facing backwards!!
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post #6 of 17 Old 07-29-2011, 09:40 AM
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Originally Posted by chuck jones View Post
Do you smell the bands burning? Put it in drive, step on the brake, and give it gas...can you feel it slipping? Does it start to smell? More than likely it's going out, but the CVT is fully warrantied to 120K miles...so if it is slipping, you should get a replacement from Nissan at no cost. The downside is that you'll be without a car for about three days unless you have a rental agreement in your contract. I don't believe there are any band adjustments you can make on a CVT.. and I've never seen any documentation or discussions on being able to adjust them.
The CVT doesn't have bands in it. It uses chain linked metal belt that actually works as a push-type pulley (the belt stiffens when pushed). I think anyone used to a regular automatic would consider the normal CVT operation to be "slipping" in sensation when driving.

2003 Midnight Blue SE AWD w/VDC
Colgan Bra, Mobil One, JWT POP charger
PAC aux input adapter, hardwired Escort Passport x50, KUDA mount for MP3 player, Porterfield R4S brake pads (now Akebono ProACT), ATE Superblue
Yokohama Envigor (much improved over stock Goodyears)
Lots of squeaks and rattles.
R.I.P. 10/15/2015 CVT failure.
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post #7 of 17 Old 07-29-2011, 11:34 AM
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Originally Posted by chuck jones View Post
Do you smell the bands burning?
Just like Eric L. said, there are no "bands" to slip, heat-up, and burn. Small metal segments contact the metal pulleys. The segments are kept in-line by several metal band, but these bands are not used to transmit the power, they are only used to contain the metal segments.

What makes the MO's CVT especially unique is that the metal-segmented belt is under compression, not tension, thus the name "push-belt" CVT.






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post #8 of 17 Old 07-29-2011, 11:34 AM
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Originally Posted by chuck jones View Post
Do you smell the bands burning?
Just like Eric L. said, there are no "bands" to slip, heat-up, and burn. Small metal segments contact the metal pulleys. The segments are kept in-line by several metal band, but these bands are not used to transmit the power, they are only used to contain the metal segments.

What makes the MO's CVT especially unique is that the metal-segmented belt is under compression, not tension, thus the name "push-belt" CVT.

-njjoe





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-Aluminum fuel tank shields
-Air Helper Springs

Replaced with 2013 BMW x5d
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post #9 of 17 Old 07-30-2011, 03:33 AM
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Well that shut me up....so much for my understanding of the new technology. I'm still back in the era of the old stuff.....back to my cave.

So.....just out of curiosity, how would a guy test his tranny if he was buying a used car and wanted to see how good it was....or if it was "slipping"...the new technology doesn't lend itself to the old way we tested out a tranny.

2009 Murano LE, white/tan, 48K miles; with all the amenities you can pack into this thing. Whoever had it first was obviously a doo-dad guy. Can't watch DVD movies because the headrest screens are facing backwards!!
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post #10 of 17 Old 07-30-2011, 01:32 PM
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Originally Posted by chuck jones View Post
Well that shut me up....so much for my understanding of the new technology. I'm still back in the era of the old stuff.....back to my cave.

So.....just out of curiosity, how would a guy test his tranny if he was buying a used car and wanted to see how good it was....or if it was "slipping"...the new technology doesn't lend itself to the old way we tested out a tranny.
There are not too many ways to "check" the CVT. One thing to look out for is any transmission leaks - evidence has shown that a slow leak over time has led to failure of both the CVT and/or the transfer case (in AWD versions). Otherwise, Nissan's diagnostic for the CVT is all computer based, so the CVT light or the CEL light will illuminate. While Nissan does not specify a fluid change interval for the CVT, I think regular maintenance (at least fluid checks) if not regular changes (I drain and refill mine every 15k, yeah overkill) is a good idea. For the most part most drivers don't check the fluids in their vehicles, and the history of frequent leaks can spell disaster for fluid starved transmissions.

2003 Midnight Blue SE AWD w/VDC
Colgan Bra, Mobil One, JWT POP charger
PAC aux input adapter, hardwired Escort Passport x50, KUDA mount for MP3 player, Porterfield R4S brake pads (now Akebono ProACT), ATE Superblue
Yokohama Envigor (much improved over stock Goodyears)
Lots of squeaks and rattles.
R.I.P. 10/15/2015 CVT failure.
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post #11 of 17 Old 07-30-2011, 08:11 PM
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...I drain and refill mine every 15k...
Did I read that correctly? That is almost how often I change my engine oil....

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post #12 of 17 Old 07-30-2011, 08:18 PM
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Did I read that correctly? That is almost how often I change my engine oil....
You know me and my wacky maintenance habits. Mobil One every 5k too.

2003 Midnight Blue SE AWD w/VDC
Colgan Bra, Mobil One, JWT POP charger
PAC aux input adapter, hardwired Escort Passport x50, KUDA mount for MP3 player, Porterfield R4S brake pads (now Akebono ProACT), ATE Superblue
Yokohama Envigor (much improved over stock Goodyears)
Lots of squeaks and rattles.
R.I.P. 10/15/2015 CVT failure.
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post #13 of 17 Old 07-30-2011, 10:15 PM
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Eric: I have a few cases of Mobil 1 left over from when I had the Porsches. One case is Mobil 1 0-40 and the other is 5W-50....what viscosity do you use? Do you use a multi-grade? For those of us who live in moderate climates...Florida and the southern states, and here in central California....there aren't many drastic climate changes that would take us away from the range of the low 50s to the low 100s. Without the danger of freezing or low temps that might turn your oil to syrup when its cold...is there a need to run a multi-viscosity oil? I remember the older cars used to almost universally run a 20 or 30 weight oil. Perhaps it's just the manufacturer's way of ensuring that the engine is protected for a wide variety of driving conditions even though the car might never leave warmer climates of Florida or the gulf coast..

2009 Murano LE, white/tan, 48K miles; with all the amenities you can pack into this thing. Whoever had it first was obviously a doo-dad guy. Can't watch DVD movies because the headrest screens are facing backwards!!
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post #14 of 17 Old 07-31-2011, 12:05 PM
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Chuck - IMO the multi-vis oils are part of a package of greatly superior oil chemistry which has emerged over the past 30 years. I suspect you and I are near the same age (got my driver's license in 1966) and I have been surprised by the improvements. Some day I'll tell you my Mercury outboard oil story....

I've used multi-vis oils since the 60's, when they were brand new and some drivers thought they were ju-ju. The older 20 or 30 weight oils simply were not the equal of the newer formulations.

For many years, I owned a 1958 Fiat Spyder, which had a 1200-cc engine design that dated back to 1938. The owner's manual actually said to use NON-detergent oil! How many years has it been since you even saw non-detergent oil (other than maybe 2-cycle oil)? Of course, in today's world (and since the 60's) no one in their right mind would run a non-detergent oil in an engine they cared about. But in the 50's, it was still a common shelf item, and one which drivers had long experience with.

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post #15 of 17 Old 07-31-2011, 07:46 PM
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But in the 50's, it was still a common shelf item, and one which drivers had long experience with.
Wasn't that also when doctors would recommend certain brands of cigarettes over others as being better for ones health?

So much for the 50's...........
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