Hi,

haven't noticed such a thing, I have mine since January. At what RPM do you see this? Is it possible that you are just experiencing the so called "turbo lag"?

D.

 

I thought so, but its on different RPMs sometimes while accelerating in low or in high RPM, I know what turbo lag is, this isnt it. Sometimes I even feel it when holding at steady throttle for example on 60km/h.

 

I have same thing, i think its made on purpose to give SPORT mode some way for meaning something

 

Mine is the same, I've also driven another (non boosterjet engine) Vitara and that was the same too.

 

Is it an AllGrip, auto or manual ?

It could be the automatic gearbox holding the revs or a reluctant shift pattern. Most modern autos learn your driving style and take a while to adapt. If, like me, you are a spirited driver, the gearbox gets confused as you drive properly after the initial run in period (which as a sympathetic petrol head is something I always stick to).

 

they all do it, nancy around like an old duck when driving it and it can't decide if you are actually wanting to do something or not. Shove the right foot down harder and see what happens, they come alive if you tell it what you are trying to do. Massive "flat spot" if you just ease on the gas, give it a shove and the ECU wakes up and starts getting the beating stick out bringing the tiny little horses to life. All the ones i have driven do this, i just leave it in "sport" mode round town for the higher shift points and let it rev a bit harder. The autos tend to hold in a higher gear and need a "kickdown" from the WOT position on the throttle to bring things to life. Stick the boot up it and teach it who is the boss and you will find they are a fun wee car to drive.

 

No its a manual, still does it, it's quite annoying, dealer still doesnt want to hear about it.

 

We took delivery of a new 1.4 Sz5 all grip this week and am (really!) pleased to find it does not seem to have this “characteristic”. Coming from someone who in the last 3 months took delivery of, and shortly after rejected, a brand new Seat Ateca for “kangarooing” and persistent stalling, believe me this car is nothing like that! If it’s that noticeable, could it be a throttle body fault/setting? Also didn’t notice anything like this on test drive in 2wd version 1.4. This thread got me nervous on reading last week after the ballache we went through with SEAT but so far ours is good.

 

I noticed a slight hesitation for the automatic gearbox to shift down during the first 1k miles or so but it’s just got better and better. I’m on around 2,200 miles and it’s much keener to move around the gears including downshifts to help with the engine braking.

Sport mode is something else entirely

Just done a 250 mile round trip to visit my Dad in hospital and still getting almost 42mpg at a more or less constant 70mph.

 

Hi Everyone. Mine is automatic, I drive my Vitara in sport mode all the time. If yours is all grip it should have this function available. I noticed a great increase in torque and little lag. I have 13,000km on mine now. Hope this helps.

I will be posting photos of my Vitara soon with all the amazing upgrades it has.

 

There has been "one" report of a similar problem on the vivavitara forum and it was a faulty Turbo Pressure Sensor but otherwise no complaints

 

Interesting thread, for the record my Vitara which is a manual allgrip 1.6 diesel has a similar issue. It feels like a very minor hesitation usually when driving at a constant speed. I have also noticed it occurs in exactly the same place on my commute to work which makes me think there is some outside electrical interference on the fly by wire sensor.
I have no issues when accelerating or changing gear, it is actually a great car to drive!

 

Hello everyone!

I have a question. I have my vitara 1.4 boosterjet for a few months now. I dont know but it seem to accelerate unevenly. I took it too and official dealer, he took it for a spin with tester, and said its nothing wrong, no errors found. Then I took it there again as soon as I felt it again, he tried again and said he see the slight loss of accelaration, but he said its so small that its nothing wrong. We also took a brand new vitara with same engine for a spin, same "problem".

Am I feeling something in my head or is this a typical boosterjet engine behavior?

It feels like I just let of the pedal for acceleration for a fraction of a second, not like when the turbine turns on and it starts accelerating more.

Please help!

Kind Regards from Slovenia

Matic

Let me help you right away.
if you use suzuki swift from 2010–2017 your fine it uses dual injection witch clean the valves
''this is the reason you see it with high miles''

But now... the new:
suzuki from 2017 to present uses a engine K10C direct-injection

The fallowing issues with direct-injection will cause is
#1 carbon build up in the intake valves.
you get signs of intake valve build up...
Loss of power/acceleration.
Engine misfires.
Lower fuel efficiency
Engine shaking <-- if you are here, expensive repairs will follow you
Jerking/vibration at stops <-- if you are here, very expensive repairs will follow you
A lit up ''check engine'' light <-- if you are that point its game over.

#2 Gdi fual pressure leakage in the combustion chamber ( not sure of happening because its a new engine )
#3 which result to oil dilution....

If you are stuck with direct-injection engine
oil catch can, <- can be risky.
Change oil regularly ( with the best oil possible for your DI engine )
get major cleaning service every 50,000 ( Very few garage's that has right equipment and proper training )
There are other methods of cleaning but its not sure it will to it's best job

 

According to this post Oil catch tank, good or bad idea?
Go to the 7th post by DazzaSport
The 1.4 Boosterjet is designed to stop any carbon build up.

 

Hello everyone!

I have a question. I have my vitara 1.4 boosterjet for a few months now. I dont know but it seem to accelerate unevenly. I took it too and official dealer, he took it for a spin with tester, and said its nothing wrong, no errors found. Then I took it there again as soon as I felt it again, he tried again and said he see the slight loss of accelaration, but he said its so small that its nothing wrong. We also took a brand new vitara with same engine for a spin, same "problem".

Am I feeling something in my head or is this a typical boosterjet engine behavior?

It feels like I just let of the pedal for acceleration for a fraction of a second, not like when the turbine turns on and it starts accelerating more.

Please help!

Kind Regards from Slovenia

Matic

Hi… I just got a new Suzuki Swift Sport with that engine… what happens is that… it turns out that the ECU it’s keeping the boots on when you let off the pedal… so there is not back pressure affecting the inlet backwards so, when you’ve finished accelerating, the turbo it’s still spinning… this air it’s going to be compressed, when you let of the gas there no where for the air to go… so the ECU keeps accelerating the engine so the spool has somewhere to go to… nothing to be worried.

 

When you release the accelerator pedal, the ecu immediately dumps boost by setting the turbo vanes to low boost position and also shuts the fuel off, the engine can't keep accelerating, any residual boost pressure in the inlet system is gong to be gone in the next 2 engine revolutions. Uneven accelerating with these if you slightly lift off the pedal then re apply is the turbo vanes having to return to the full boost position and the turbo spooling up again.

 

Stupid suggestions time. How old is it? Still under warranty? You could easily have a brake dragging or something equally as silly going on too.

 

It's a mid 2018 so not under manufacturers warranty. It should still have about a week left of the dealers 3 month warranty.
The "change oil" warning light just came on too and so it will be in for a full service on Monday, presumably they will spot anything like that and I will mention it to them too.

 

Mine has a very slight surge between 1500rpm & 1800rpm which is quite annoying. 30mph in 3
3rd just gives a slight shake to the car as if it’s a bump road, pressing the clutch smooths it out. I tried a brand new Vitara and that did the same thing. As long as it’s in gear and between those revs it slights shakes.