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Old Jul 27, 2014 | 05:15 PM
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Default Sewing machine

I have a 2014 Z51 with 1200 miles on it.
At lower RPM about 1800 to 2500 the engine sounds like a sewing machine is under the hood. It almost sounds like solid lifters but not consistent like solids are.
The car performs well but its a little concerning to me.
Should I be concerned or just keep driving down the road?
Any help would be appreciated.
RoadG.
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Old Jul 27, 2014 | 05:16 PM
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direct injection
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Old Jul 27, 2014 | 05:18 PM
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It's probably normal, and may change over time. This car makes all kinds of strange noises.
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Old Jul 27, 2014 | 05:33 PM
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High pressure fuel pump which is utilized in direct injection engines is usually noisy. Nothing unusual , just different if you haven't had a engine with this before. If you google high pressure fuel pump noise you will see a lot of concern expressed about engine noise in various makes and models that have DI.
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Old Jul 27, 2014 | 06:00 PM
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I'm feeling better already.
Thanks.
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Old Jul 27, 2014 | 07:12 PM
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Originally Posted by C7DriverOnt
High pressure fuel pump which is utilized in direct injection engines is usually noisy. Nothing unusual , just different if you haven't had a engine with this before. If you google high pressure fuel pump noise you will see a lot of concern expressed about engine noise in various makes and models that have DI.
Interesting. Haven't had a car with DI before so good to know.
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Old Jul 27, 2014 | 09:09 PM
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The car definitely makes some noises . I have noticed mine has quieted down a bit . I have 5000 miles now .....
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Old Jul 27, 2014 | 11:14 PM
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If it sounds like a sewing machine then it sounds like a typical GM aluminum block push rod V8. My G8 GT with the 6 liter L76 sounds like that too.
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