Engine sounds, what's normal?
Thread Starter
Intermediate
Joined: Jun 2019
Posts: 35
Likes: 4
From: Houston, TX
Engine sounds, what's normal?
Hi Everyone - New to C7 GS. Understand it's hard to explain fully a sound via this outlet but just getting a general idea of what's normal.
I'm hearing a tapping and sort of air pulsing sound from the engine area. Assume tapping/clicking is lifters or valves?
The air pulsing sound is similar to an exhaust leak. I haven't been under the car to verify this but maybe it's just a normal sound?
I can hear the tapping more at slow speeds with radio off. Not that it doesn't exist at higher speeds but the exhaust overcomes it. Of course, when I go down an alley the sounds are amplified.
I assume it's all normal, just want to check.
I'm hearing a tapping and sort of air pulsing sound from the engine area. Assume tapping/clicking is lifters or valves?
The air pulsing sound is similar to an exhaust leak. I haven't been under the car to verify this but maybe it's just a normal sound?
I can hear the tapping more at slow speeds with radio off. Not that it doesn't exist at higher speeds but the exhaust overcomes it. Of course, when I go down an alley the sounds are amplified.
I assume it's all normal, just want to check.
Team Owner
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
The ticking you hear are the injectors - common for a DI (Direct Injection) motor.
When do you hear the "air pulsing" sound?
When do you hear the "air pulsing" sound?
Thread Starter
Intermediate
Joined: Jun 2019
Posts: 35
Likes: 4
From: Houston, TX
Team Owner
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
I mean, do you hear it idling? When you press the accelerator? When you let up on the accelerator?
Etc etc...
Etc etc...
Thread Starter
Intermediate
Joined: Jun 2019
Posts: 35
Likes: 4
From: Houston, TX
Without doing more testing I've noticed it rolling along at low speeds through the neighborhood. I just went out to the garage, started it and put my ear around the car and am not hearing it at the moment. I'll pay attention to it more next time.
Team Owner
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
In a stock LT1, it is "normal" for there to be a "woosh" sound if you punch the throttle at idle fairly hard
Thread Starter
Intermediate
Joined: Jun 2019
Posts: 35
Likes: 4
From: Houston, TX
It's not the whoosh. It occurs at a frequency similar to the ticking not related to pedal input. I just can't confirm whether it's more pronounced at high throttle or not due to other noise.
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Race Director
Joined: Mar 2001
Posts: 19,964
Likes: 6,768
From: Bonneville Salt Flats
Is this a new or used car, please? If new, I suspect you are hyper-sensitive to everything at this point. If new, DRIVE it and see what "falls off" (no, of course, just joking). But, seriously, I suspect you are over-reacting and will soon adapt to your new Vette... if you let yourself.
If used??? Who knows about the air sound, aftermarket intake... or? Relax and ENJOY!
If used??? Who knows about the air sound, aftermarket intake... or? Relax and ENJOY!
2nd Gear
Joined: Jun 2024
Posts: 2
Likes: 0
I know this is forever old, but Im hearing the same thing on mine. Did you ever determine if this was just normal?
Thread Starter
Intermediate
Joined: Jun 2019
Posts: 35
Likes: 4
From: Houston, TX
I never really determined the cause of the noises I described above... I've since sold the car but I drove it often and put on a lot of track miles. Never had any issues so I'm sure they were normal or benign enough to not matter.
2nd Gear
Joined: Jun 2024
Posts: 2
Likes: 0
Thanks for the reply, have a good one!