Engine noise much louder around 2000 rpm

[zpe]

Hi all,

I have a brand new 2013 1LT. Everything is great so far, just one concern.

I'm finding that when I'm accelerating, the noise from the engine is quite a lot louder at 2000 rpm than in any other situation. I guess if I had to describe it, it's a buzzing noise more than an engine noise. I start noticing it at 1500 rpm and it's gone by 2500 rpm. Anything above and below this range sounds very normal.

I'm just wondering if anyone else's Cruze behaves this way? I don't remember noticing this while test driving a different one. If it's normal I won't worry about it too much.

Curious why only that particular range makes so much noise.

Thanks!

[spacedout]

In those RPM ranges I also notice a noise/rumble when you put the engine under load/step on it. Kind of reminds me of a diesel truck sound, I attribute the sound with low end torque. The sound is more of a drone exhaust sound.

I would say its normal but only way to tell is drive another cruze or have the dealer check things out next time you take it in.

[zpe]

In those RPM ranges I also notice a noise/rumble when you put the engine under load/step on it. Kind of reminds me of a diesel truck sound, I attribute the sound with low end torque. The sound is more of a drone exhaust sound.

I would say its normal but only way to tell is drive another cruze or have the dealer check things out next time you take it in.

The noise that you have... are you saying you only get it when you're giving it a lot of gas?

I ask because my noise happens regardless of how aggressively I'm accelerating. I could be flooring it or I could be giving it the bare minimum to get the rpm up. If it's in that 1500-2500 rpm range, it's making the noise. Louder the closer to 2000 it is, but the same every time in every situation.

I do for sure plan on asking my dealer to check it out. Just kinda hoping there's a simple explanation in the mean time.

[spacedout]

no, I never really floor the gas. it makes that drone sound with even light acceleration at those RPM ranges mentioned.

[Bohdan]

Mine was a little louder when new but now at 4,000 very quite it is.

[jstoner22]

I noticed this between 1800-2000rpm as well when the car was new.
It has dissipated throughout the last few thousand kilometres though.

[obermd]

These are the engine speeds where the Turbo is spooling up. I wonder if you're hearing the turbo spool up.

[Chevy Customer Service]

The noise that you have... are you saying you only get it when you're giving it a lot of gas?

I ask because my noise happens regardless of how aggressively I'm accelerating. I could be flooring it or I could be giving it the bare minimum to get the rpm up. If it's in that 1500-2500 rpm range, it's making the noise. Louder the closer to 2000 it is, but the same every time in every situation.

I do for sure plan on asking my dealer to check it out. Just kinda hoping there's a simple explanation in the mean time.

zpe,
I would like you to keep me posted on the progress with your dealer. If you have any questions please feel free to contact me anytime.
Thank you,
Stacy Chevrolet Customer Service

[zpe]

Well I finally got my schedule and my dealer's schedule to align and I just got back from my service appointment.

I had someone take a drive with me and they could tell what I was talking about. Said it was a frequency vibration coming up through the dash at the RPM level I was describing.

They are keeping it to work on because they will probably have a hard time telling what exactly is causing it, since you can't reproduce it without driving the car. I'm driving a rental LS (boo! ) for now.

[David1]

This noise is not normal at all. I just turned in my 11 auto Echo and the motor and exhaust were nice and quiet. I just picked up at 2013 1LT auto yesterday. I test drove a few other 13 cruzes before selecting the one I now have. The noise around 2000 rpm in 6th gear light throttle is so bad that the the dash resonates and the whole interior is resonating. It is not turbo spool. I have a whole 140 miles on the car. Figures the one I didn't test drive has a problem. The others I drove did not have this issue. I describe it as an exhaust leak/resonance right in the under/middle/front of the car. Like how the old flex pipes would leak back in the day when they started to fail. I am taking it in this afternoon and will keep you guys posted.