CVT Shudder

[inuvik]

Is that safe with the operation of the CVT? Coasting on N to a stop? I havent read anything from Mitsubishi in regards to that? Just curious.

Safe as in normal vehicle operation? That depends on your driving style.
Safe as in harm to the CVT? No issues with coasting in neutral as long as the engine is running.

[dspace9]

Safe as in normal vehicle operation? That depends on your driving style.
Safe as in harm to the CVT? No issues with coasting in neutral as long as the engine is running.

I never did that with my automatic Ford Escort, but over the years I have heard a few people with manual tranny cars mention they decelerate in neutral, instead of actually shifting down the gears as the speed goes down. I'm not much for driving my cars in neutral.. only at stops do I use neutral sometimes.

[MirageSEFan]

You drive your CVT pretty much how I drive mine. I put my CVT into neutral at pretty much every stop and manual shift from B to D from every stop when I take off. If you search the forum for "idle neutral logic" you'll find that under many circumstances the CVT is NOT placed into neutral while stopped. So that funky downshifting or engaging from a stop is normal CVT behavior. I don't like it so I manually shift. One nice thing about the CVT is that you can coast with it in neutral, unlike many automatic transmissions.

Yes, it does coast very well in Neutral. I also coast in Drive sometimes, if I need to slow down more as I approach a stop without hitting the brakes much. Then I shift into Neutral while I am stopped.

[Bigdeezy]

Welcome to the forum, bigdeezy.

Did you happen to come across this thread? It answers the question about that "shifting to neutral" feeling.

Thread: CVT owners... what is "Idle Neutral Logic"? And what is it like to drive?

Thanks MetroMPG! I read the entire thread and it was helpful. Though, I want to be clear about what I am experiencing.

Sometimes, when *Almost* coming to a complete stop, like 3 mph... 2 mph... the car with lurch as if it is doing an abrupt 2 to 1 downshift or 1 to neutral shift. It doesn't happen all the time and I can not find a way to make it happen intentionally. My best guess is that it is the "Idle Neutral Logic" and it's just trying its best to do what it thinks it should do and once in awhile it gets it wrong.

I'm not worried about the Idle Neutral Logic as much now. I appreciate everyone's comments on this.

[Bigdeezy]

Also, from the thread on Idle Neutral Logic (https://mirageforum.com/forum/showth...ll=1#post58905) post #19 by beacon

"Edit: after some more research, it IS a Jatco cvt (Nissan) which features a lock-up torque converter, and it's rated for double the horsepower of the 3A92 engine..."

So, for my other issue, the one where I feel like the car is struggling, herky-jerky, or slipping a little under light acceleration while cold, I double it's causing any issues. The itty bitty 75 hp engine most likely won't be able to damage the CVT belt/pulley anyways. Plus, again, I drive like a grandpa... especially when it's warming up.

[Dirk Diggler]

I don't drive them that often but the going into neutral is supposed to happen under very specific conditions. Lurching forward like you've been rear ended while stopped is a normal thing for these cars. Annoying but normal. I've had a few cars feel like they're surging/hunting a bit while accelerating lightly when really cold. Again, seems relatively normal for these.

I haven't had any cvt failures lately so yay for that!!

Fummins how would the CVT versions fair in Ubering? Is it a viable option?

[Bigdeezy]

Is that safe with the operation of the CVT? Coasting on N to a stop? I havent read anything from Mitsubishi in regards to that? Just curious.

I don’t know about the safety aspect of coasting in neutral to a stop but I can tell you it is most likely more fuel efficient to leave it in drive and coast or brake to a complete stop. While the car is in motion, in gear, and has no throttle input the fuel injectors should stop pulsing. While in neutral the fuel injectors still need to pulse or the engine would stall. Same principle if you are coasting in neutral or stopped/parked and idling... injectors must pulse.

[Bigdeezy]

The idle neutral logic saves gas while idling because it reduces engine load with respect to the transaxle being in gear at a stop.

[Dirk Diggler]

Its also caused my 2014 DE CVT to slide back and almost hit a car in a drive thru. I was sitting for about 2 mins with my foot on the brake and before I could hit the gas it slide back about a foot. Maybe something is wrong with my hill start assist?

[Marklovski]

Hill start assist wont work unless you do a full stop when on an incline.