ive heard about it....I'm pretty sure the problem is the flex pipe. Im sure someone else here knows more
High pitch whistle on acceleration
I have a '07 G6 GT that I inherited from my 87 y/o grandfather when he past away in January. Yes, it's red because what other color would an 87 year old man drive. Within the last 2 months I've started noticing a high pitch whistle/noise when I accelerate. If I back off the throttle its goes away. I thought it was brakes at first but I get no noise when I brake at any speed. Only when I accelerate. Anyone have any thoughts? Haven't brought it in yet, want to see if its a minor fix I can do myself.
Thanks.
Mario
Thanks.
Mario
1 - 20 of 67 Posts
Thanks. I'll keep an eye out for more replies.
I've read the whistle is caused by a factory installed weep hole in the muffler that's designed to let water escape.I have a '07 G6 GT that I inherited from my 87 y/o grandfather when he past away in January. Yes, it's red because what other color would an 87 year old man drive. Within the last 2 months I've started noticing a high pitch whistle/noise when I accelerate. If I back off the throttle its goes away. I thought it was brakes at first but I get no noise when I brake at any speed. Only when I accelerate. Anyone have any thoughts? Haven't brought it in yet, want to see if its a minor fix I can do myself.
Thanks.
Mario
Wasn't the weep hole. Turns out my idle pulley is bad and that stretched out the S belt. Oh yeah, both my front struts are leaking, at 25,500 miles.......................
EDIT
during me typing this looks like you answered it LOL)
Ive had the whistle but its mostly from 1-2 when the rpm's get in the 3500-4000 range when shifting i thought it was the trans slipping or the serpentine belt.
Im leaning towards the serpentine but Ive had it forever since i picked up the car.
Also a couple people have changed the belt and the noise stopped. But i have yet to do that.
during me typing this looks like you answered it LOL)Ive had the whistle but its mostly from 1-2 when the rpm's get in the 3500-4000 range when shifting i thought it was the trans slipping or the serpentine belt.
Im leaning towards the serpentine but Ive had it forever since i picked up the car.
Also a couple people have changed the belt and the noise stopped. But i have yet to do that.
I have the exact same issue with my '07 GT convertible. High pitched whistle at certain levels of acceleration.
The car is almost 4 years old (it was originally bought in Dec 2006) and 20K miles on the original serpentine belt. I guess I will try changing it this weekend and see if that resolves the problem. Dealer is a bit far away and would charge for the belt anyway.
If not the belt then I will look for the "weep hole".
I'll post back my results next week... I hope this is the answer.
RD
The car is almost 4 years old (it was originally bought in Dec 2006) and 20K miles on the original serpentine belt. I guess I will try changing it this weekend and see if that resolves the problem. Dealer is a bit far away and would charge for the belt anyway.
If not the belt then I will look for the "weep hole".
I'll post back my results next week... I hope this is the answer.
RD
We've got a '07 G6 HTC as well and recently started experiencing a whistle or screeching noise when accelerating. We recently put on new rotors and pads so I first thought it was the brakes but then realize its only on acceleration.
I am taking in the G6 in on 9/22/10 to get the roof button replaced (pressing button would start retraction but stop after a few seconds which then required button to be re-pressed) - I've printed out this thread to show Dealer Service to have them check out my issue - I'll post results as well.
I am taking in the G6 in on 9/22/10 to get the roof button replaced (pressing button would start retraction but stop after a few seconds which then required button to be re-pressed) - I've printed out this thread to show Dealer Service to have them check out my issue - I'll post results as well.
We've got a '07 G6 HTC as well and recently started experiencing a whistle or screeching noise when accelerating. We recently put on new rotors and pads so I first thought it was the brakes but then realize its only on acceleration.
I am taking in the G6 in on 9/22/10 to get the roof button replaced (pressing button would start retraction but stop after a few seconds which then required button to be re-pressed) - I've printed out this thread to show Dealer Service to have them check out my issue - I'll post results as well.
I've read the whistle is caused by a factory installed weep hole in the muffler that's designed to let water escape.
Take your pick!Wasn't the weep hole. Turns out my idle pulley is bad and that stretched out the S belt. Oh yeah, both my front struts are leaking, at 25,500 miles.......................
I just tried a new serpentine belt and new idler pulleys, no change at all so I guess I am going looking for a weep hole before I take it to the dealer.
I was surprised that the belt was not in stock anywhere, then I saw how long it is. I don't think I have ever seen one so long before..
Due to the dealer cancelling my after market warrantee ("oops it was a clerical error") I now have to wait 30 days for the coverage to take effect.
arrghh...
I was surprised that the belt was not in stock anywhere, then I saw how long it is. I don't think I have ever seen one so long before..
Due to the dealer cancelling my after market warrantee ("oops it was a clerical error") I now have to wait 30 days for the coverage to take effect.
arrghh...
I need a new belt....coming up on 117,000 miles.
Not too bad to change, invest a couple of minutes and remove the airbox, you will be glad you did.
And you will probably need a strong bar to move the motor mount back a hair to replace the spacer. You will see what I mean when you get there..
Rob
And you will probably need a strong bar to move the motor mount back a hair to replace the spacer. You will see what I mean when you get there..
Rob
The whistle on many G6 and Malibu has been the resonator.
Brought the G6 HTC in for service on Thursday 9/23 - Tech told Service Manager that on his test drive he heard the whistling/squeal - checked belts, PVC value as A-OK - had a Tech rev the car while on the jack and heard whistle through the exhaust system. Wasn't clear whether it was at the resonator or Cat - they indicated a replacement exhaust may correct but they said this is common with G6s.
At 27,000 miles it doesn't need a replacement cat-back so we'll just turn up the music...
At 27,000 miles it doesn't need a replacement cat-back so we'll just turn up the music...
It's a supercharger! lol. Thats's just something the idiots around here would say.
This is just depressing. A design defect that turns up at 27K miles (or in my case 20K miles) and isn't even covered by the warrantee.
I wonder if the whistle is internal or from a weep hole in the resonator as mentioned before? Maybe a stainless steel screw in the weep hole will quiet or eliminate the noise.
I wonder if the whistle is internal or from a weep hole in the resonator as mentioned before? Maybe a stainless steel screw in the weep hole will quiet or eliminate the noise.
that weep hole is there for a reason to let condensation out. plugging it could cause the muffler to rust from the inside out.
I think I might have to get my belts checked after reading this because I just recently had the whistling on acceleration that seems to come from the engine. It started at around 80k miles and Im at 85k now.
Mine has the same problem, just bought the car. I'm furious if there is no warrantee fix for this. I may have to push the dealer to return it cause the car had the squeal when I test drove it which I mentioned to them and they said they would fix it when I brought it in for service. Love to drive the car but the squeal will drive me nuts. Got to be a way to fix it without sealing the weep hole. And to think I purchased an additional 2 years on the warrantee and at this point it’s useless.
Art.
Art.
1 - 20 of 67 Posts
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