Revs Increase When Changing Gear

[TruBlu]

Hi All,

I've had my Auris for a month now, which is a T3 1.6 2008 and it is really annoying when changing gear as it sounds like the clutch is slipping because the engine revs rise, especially when changing from 1st to 2nd. Even if I release the throttle, pause and then depress the clutch the revs rise, it can make you seem like a real amateur driver. I've had many cars and been driving for 35 years and never experienced this, which is uncomfortable and annoying.

Does anyone else experience this and any tips on avoiding it?

TruBlu

[snugasabug]

Hi All,

I've had my Auris for a month now, which is a T3 1.6 2008 and it is really annoying when changing gear as it sounds like the clutch is slipping because the engine revs rise, especially when changing from 1st to 2nd. Even if I release the throttle, pause and then depress the clutch the revs rise, it can make you seem like a real amateur driver. I've had many cars and been driving for 35 years and never experienced this, which is uncomfortable and annoying.

Does anyone else experience this and any tips on avoiding it?

TruBlu

Hi TruBlu

I have an Auris SR D4-d which has never experienced this problem, however my car is at the garage at the moment having a few warranty 'issues' sorted & they have issued me with a Yaris....yippee :( I hate the !Removed! thing & it does exactly the same as what you are experiencing - really embarrassing as it looks like I am a crap, inexperienced driver.

Hoping to get mine back today - can't wait!

Cheers

Louise

[hertsnminds]

There is a switch under the clutch pedal that blips the throttle and has been on most cars I have owned since the late 1980's. My F plate Corolla GTi-16 did the same thing. I believe it does this to try and smooth out gear changes.

[TruBlu]

Hi All,

I've had my Auris for a month now, which is a T3 1.6 2008 and it is really annoying when changing gear as it sounds like the clutch is slipping because the engine revs rise, especially when changing from 1st to 2nd. Even if I release the throttle, pause and then depress the clutch the revs rise, it can make you seem like a real amateur driver. I've had many cars and been driving for 35 years and never experienced this, which is uncomfortable and annoying.

Does anyone else experience this and any tips on avoiding it?

TruBlu

Hi TruBlu

I have an Auris SR D4-d which has never experienced this problem, however my car is at the garage at the moment having a few warranty 'issues' sorted & they have issued me with a Yaris....yippee :( I hate the !Removed! thing & it does exactly the same as what you are experiencing - really embarrassing as it looks like I am a crap, inexperienced driver.

Hoping to get mine back today - can't wait!

Cheers

Louise

Thanks for the reply - Yours is a diesel though isn't it Louise? I wouldn't expect it to happen with a diesel, but thanks for telling me that the Yaris did the same.

[Jarod]

I have the same. I don't like it too but I was told that it is normal. But i don't what is it for

[tijsz007]

Isn't it for better synchronisation (or what is the exact word) of the gears?

[MarqsM]

(...)

Does anyone else experience this and any tips on avoiding it?

TruBlu

Hi,

There is nothing you can do about it, since that is a "feature" of all newer toyota engines (since whichever corolla generation). My local dealer's workshop explained that to me in a pretty detailed way. Here it goes.

When you depress the clutch, ECU rises the revs in order to keep the catalytic converter temperature at a given level (really high, that is). This is supposed to rise its efficiency and, as an output, keep the toxic substances levels in exhausts low. Provided toyota is really concerned about that - and we can all see from advertisment materials, DPFs etc. that they are - I find this explanation as sufficient and true.

My '08 1.6 petrol auris has the same thing, the unit I took for a test drive at my local dealer's ('09 1.6 petrol, 132 HP) had the same thing. It is indeed annoying to say the least, but after a while you can live with that. Of course then you switch to another car with a "normal" engine and have problems with gear switching again :)

So, all in all, you always seem to look like inexperienced driver :D

The only tip I can think of is for you to release the accelaration pedal moment before you depress the clutch. The revs will still rise, but not as much.

Hope that helps.

[TruBlu]

Thanks for the info everyone

[hertsnminds]

When down shifting, the engine needs to spin faster as it engages the new gear. This can be achieved by 'blipping' the throttle as the transmission passes through neutral. If the engine isn't manually sped up by the driver, it will be sped up by the driveline when the clutch is re-engaged. This can be OK for normal street driving, but if the car is cornering near the limit this can upset the suspension and the tire adhesion.

Have a read of this site, it may explain things more clearly. http://www.waycoolinc.com/z3/essentials/fi...oe/shifting.htm

It seems Nissan are taking this to the next level with this system...

Now we have something that I have honestly never seen or heard of in a full manual transmission which is found in the new 2009 Nissan 370Z, a SynchroRev Match system. Basically, from what I have understood from my research, this system automatically blips the throttle when you attempt to up-shift to a higher gear using the shifter.

Source http://www.automotiveaddicts.com/3169/2009...orev-match-what

There is also a you tube video showing the system in action

http://www.youtube.com/watch?v=XC9ZzGNlLms

[T Sport 1978]

When down shifting, the engine needs to spin faster as it engages the new gear. This can be achieved by 'blipping' the throttle as the transmission passes through neutral. If the engine isn't manually sped up by the driver, it will be sped up by the driveline when the clutch is re-engaged. This can be OK for normal street driving, but if the car is cornering near the limit this can upset the suspension and the tire adhesion.

Have a read of this site, it may explain things more clearly. http://www.waycoolinc.com/z3/essentials/fi...oe/shifting.htm

It seems Nissan are taking this to the next level with this system...

Now we have something that I have honestly never seen or heard of in a full manual transmission which is found in the new 2009 Nissan 370Z, a SynchroRev Match system. Basically, from what I have understood from my research, this system automatically blips the throttle when you attempt to up-shift to a higher gear using the shifter.

Source http://www.automotiveaddicts.com/3169/2009...orev-match-what

There is also a you tube video showing the system in action

http://www.youtube.com/watch?v=XC9ZzGNlLms

I rev match manually and have been doing so for years, it certainly helps to make a smoother drive and also i believe it is easier on the clutch.

[Djw John]

There is a switch under the clutch pedal that blips the throttle and has been on most cars I have owned since the late 1980's. My F plate Corolla GTi-16 did the same thing. I believe it does this to try and smooth out gear changes.

I'm not saying there isnt one on your Corolla GTi, but there hasnt been one of these on any of the 100plus cars I've driven. Also from a logical point of view, blipping the throtle on upshifts would make for a jerkier ride. Nissan have recently launched the first system that blips the throttle on the downshift on a manual car in the 370Z and this is the first mainstream manufacturer to have done this.

[Johan007]

The only tip I can think of is for you to release the accelaration pedal moment before you depress the clutch.

Erm I thought that was how you are supposed to drive and have always driven like this. However I drove without doing this just to see the effect and I do not experience these issue and was seprised the engine note stayed flat

[MarqsM]

The only tip I can think of is for you to release the accelaration pedal moment before you depress the clutch.

Erm I thought that was how you are supposed to drive and have always driven like this. However I drove without doing this just to see the effect and I do not experience these issue and was seprised the engine note stayed flat

1. If you mean that you should release the acceleration while changing gears: yes and no :) Depending on what you actually want to achieve, what kind of engine you have etc. Sometime you do have to rev up a little otherwise you will not change gears fluently.

2. On this forum there is nothing obvious. We have people from all around the world, that represent so many driving styles that you may be surprised every moment. Not long ago there was a discussion somewhere between people depressing clutch while starting up and those who don't do it (I mean regardless of the toyota's "intelligent key" which simply demands it). Some were taught to do so, others were not.

[ProSpeed]

There is a difference between the 370Z system and the Auris:

The Nissan system is intended to to raise the revs for a faster down-shifting (If you've ever driven a car without a synchronized gearbox you will know how essential that is...), because you avoid the time for synchronization.

The Auris also raises the revs but it is used to keep the combustion in a clean way (don't know the english term, sry), so that the gasoline-oxygen mixture can react with the right temperature.

And why the hell are they doing that? To lower your taxes.

It is necessary to reach the EURO 4 emission-standards.

[cmclean]

Yup, got the same problem on my sons 1.6 SR. I noticed when we took delivery back in December. At first I thought it was just me as I usually drive an autobox, but I definitely reckon it's a slow response on the throttle electrics. I have to back off the pedal half a second before dipping the clutch, if that's not done then the revs rise about 2-3 hundred RPM when the clutch disengages. It's annoying as it sounds as though you don't how to work the pedal properly. I reckon it needs checking out to monitor the response between the pedal and throttle position motor.

[cmclean]

Oh, and by the way, I've been driving since 1968 and that includes Bikes, Cars, Trucks with crash boxes, not your namby pamby synchro stuff, Forklifts etc, so I reckon it ain't my driving style. :) :) :)

[balli hi]

There is a difference between the 370Z system and the Auris:

The Nissan system is intended to to raise the revs for a faster down-shifting (If you've ever driven a car without a synchronized gearbox you will know how essential that is...), because you avoid the time for synchronization.

The Auris also raises the revs but it is used to keep the combustion in a clean way (don't know the english term, sry), so that the gasoline-oxygen mixture can react with the right temperature.

And why the hell are they doing that? To lower your taxes.

It is necessary to reach the EURO 4 emission-standards.

I have to say Prospeed is right , this topic raises its head every so often , with new owners of the Auris , and indeed i raised it myself back in April 08 after owning my Auris for only a couple of weeks , i quickly found out that it was an emissions feature :

( it is a feature controlled by the ECU and is designed to hold the throttle open momentarily. This is to burn off unburnt fuel in the combustion chamber to meet very strict emmision levels )

[GTL05T]

i think all new cars do the same thing... my mates hyundai getz did the same thing... b4 i change gears i back of the throttle then press the clutch then change gears.. the revs dont float wen i do this... maybe this mite help..

[mountain_mania]

( it is a feature controlled by the ECU and is designed to hold the throttle open momentarily. This is to burn off unburnt fuel in the combustion chamber to meet very strict emmision levels )

Exactly :)

[Karma Supra]

Now we have something that I have honestly never seen or heard of in a full manual transmission which is found in the new 2009 Nissan 370Z, a SynchroRev Match system. Basically, from what I have understood from my research, this system automatically blips the throttle when you attempt to up-shift to a higher gear using the shifter.

Apart from the fact that when you up-shift, revs drop. The Nissan system blips the throttle to rev match on the downshift. Very nice feature indeed, something the SMG M3s had in 2001.

I always rev match on downshifts, I usually double declutch too if I am driving in a "spirited" way. It's a habit I picked up from driving MR2s with knackered synchros,

[cute]

The same happens to me. I got a '52 plate corolla, T3 1.4

I must say, I don't know much about cars, other than getting into it and driving it. I've been driving my Toyota for over a year now, and never noticed the revs increasing when I press the clutch, until about 3 months ago after I had her 7 year full service done. My car all of a sudden went from average 500miles per tank to just over 300miles per tank after the service. Going to toyota to get a new set of spark plugs in, to see if that helps at all. Also from that day onwards,my gears are struggling to shift between first and second sometimes. Don't know if that is a problem with the cluch, or gearbox. I love my car to bits, so if there is anybody out there that can help me or have some advice, otherwise she has to go unfortunately

[YahyaNana]

Very interesting, recently, i have been experiencing a similar problem with 2002 Fortuner D4D 4x4. I had it taken to my mech who suggested i bring it in so that he adjust something after removing the menifold. After reading these post i am hesitant to take it in.

An6 suggestions?

[FROSTYBALLS]

2002 as per your post, or 2022 as per your profile?