High-Pitched Engine Noise

BKamp613

BKamp613

New member
Hey all. Been noticing a high-pitched (think ringing ears) sound under the hood for a while. Ran AC on a 3hr road trip so I thought it might have something to do with that. Took her for a 15 minute drive (no AC) and it did it again. Doesn't seem to be occurring at idle after cold start, but once I get rolling it comes back.

Is this normal? Only mod is intake. Going to check intake connections but it doesn't sound like its coming from there at all. More in the center.

Checked the noises thread but didn't find anything. Thanks for the input!
 
Sergeant Turbo Sonic

Sergeant Turbo Sonic

New member
Its your water pump with air in it mine did it and took it to the dealer and all they did was purge the cooling system and the noise was gone. so happy trails

Sent from my SPH-L710 using Tapatalk 4
 
Beastlick

Beastlick

New member
Brian, I remembered seeing this thread and I'm starting to notice almost a whining noise mainly during acceleration. Is this the same type of noise, and did you ever get it resolved?
 
Chevrolet Customer Care

Chevrolet Customer Care

New member
Hey Beastlick please message me if you would like me to document this concern for you in our system. I look forward to hearing from you.

Jackie
Chevrolet Customer Care
 
Beastlick

Beastlick

New member
Mine is related to my speed not my RPM's I really notice it on the HWY. No sound at all when stopped or idle. I'm worried my springs have something to do with it.
 
Chevrolet Customer Care

Chevrolet Customer Care

New member
Slaycom,

I am sorry to hear that you are having this concern. Have you had a chance to have your GM dealership look into this concern? If you would like assistance while at the dealership, please do not hesitate to reach out to us via private message.

Erica Tiffany
Chevrolet Customer Care
 
BKamp613

BKamp613

New member
Mine isn't affected by speed that I can tell. Does it @ idle and stopped as well. It's in Service right now being looked at.
 
BKamp613

BKamp613

New member
Update: Water Pump seal was causing the noise according to Service. Part ordered but I'll be Sonic-less till earliest Tuesday :(

I'm @ 5,018 miles.
 
Last edited:
ChrisJ

ChrisJ

Active member
BKamp613 said:
Update: Water Pump seal was causing the noise according to Service. Part ordered but I'll be Sonic-less till earliest Tuesday :(

I'm @ 5,018 miles.
Click to expand...

Better now then later. The next pump will probably go 100-200K without failure.
 
S

Slaycom

New member
Chevrolet Customer Servic said:
Slaycom,

I am sorry to hear that you are having this concern. Have you had a chance to have your GM dealership look into this concern? If you would like assistance while at the dealership, please do not hesitate to reach out to us via private message.

Erica Tiffany
Chevrolet Customer Care
Click to expand...

No thank you Erica, I work there. Didn't get a chance to diagnose the problem as workload was horrific for the weekend. I'll pull it into the shop first thing Monday and check water pump first, however I seem to think it's related to wind noise (harsh, but true). May cover up a few vents/sidings and take it for a drive to find out.
 
BKamp613

BKamp613

New member
Update #2: Got the car back. Didn't hear the noise on my 10 mile trip back home (with AC on), so I'm happy. Hopefully the new pump will last more than 5,000 miles.

Sure did miss my Sonic. Although the 300hp Impala I had as a rental was decent :)
 
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Chevrolet Customer Care

Chevrolet Customer Care

New member
Hey BKamp,

Glad to hear that your Sonic is back with you. We're hoping this repair fixes everything. If there's anything else we can help with, please let us know.

Amber N.
Chevrolet Customer Care
 
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