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Discussion Starter · #1 ·
'17 Cruze LT, automatic, built Dec. '16, 13.5K miles. Realllllly getting more noticeable. Last time I posted about this was told it was the DI, but geez, it didn't do this for the first nine months I owned the car.

Any TSB's for this? Really don't feel like driving the twenty miles round trip to and from the dealer, leaving the car for a day, and hearing the dreaded 'Could Not Duplicate' or 'No code thrown; normal operation'.

Thanks.
 

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It's the direct injection high pressure fuel pump that is camshaft driven. Mine's always done it when cold outside. DI cars just make a lot of noise in the cold.

I can grab a video if it'd help, but I suspect we're talking about the same noise.
 

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Loudest since the nine months you have owned the car....have the recent temps where you live been the coldest in those nine months?

I notice it a fair amount with my car during the cold spells of winter. This morning at 12 degrees, I was a bee buzzin' down the road until I got to the interstate.
 

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Discussion Starter · #5 ·
I bought the car in Jan. '17. Didn't notice the noise in the cold weather until late fall or so--the second winter in the car. But thanks for the input, both of you guys. I guess I live with it.
 

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Mine makes this exact noise. Thanks for enlightening me. I thought it was an intake noise or something. Cold makes sense as it has surely been that here.
 

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I've had my 2018 for a month after totaling my 2012. I didn't hear that noise until about a week ago. It's pretty loud when it's cold. After I jump on the highway I don't hear it. It's less noticeable when it's warmer outside. When I started hearing it I wasn't to happy. I even have a appointment for this Friday, but I may cancel it now.
 

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After I jump on the highway I don't hear it. It's less noticeable when it's warmer outside.
Yep, ~45-55 starting temp, it isn't that noticeable. Gets louder the closer you get to freezing or below. And yep, goes away with some engine heat.
 

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We've got some very cold weather here in winter and we had some -20 celcius very often all winter long and I never heard this noise. We didn't get 45-55 fahrenheit yet lol. Maybe because it's too cold and no in between?
 

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Discussion Starter · #10 ·
I hear it now even when I start it and it's 80 degrees outside. It's definitely a change from the entire first year I drove the car. Goes away quickly and isn't as loud as when it's cold, but if I'm hearing it now, I'm thinking it'll be noisy, big-time, this coming winter...sigh.

Just wondering...anybody on the forum get TSB's as they are issued for the second-gen?
 

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Wasn't there a TSB for something with the turbo causing a buzzing noise? Something with correct torque on the heatshield bolts? Maybe it was only on 2016.5s?
 

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Wasn't there a TSB for something with the turbo causing a buzzing noise? Something with correct torque on the heatshield bolts? Maybe it was only on 2016.5s?
Wastegate actuator arm rattles under harder acceleration in the 2500-3250 RPM range. There was no fix for it, and the '18's still do it.
 

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Wastegate actuator arm rattles under harder acceleration in the 2500-3250 RPM range. There was no fix for it, and the '18's still do it.
Welp, that answers my question. Just passed break-in period and thought " time to feed this thing some revs...wait, what's that buzzing??"

Thank you.
 
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