I've read in that other thread about a whistling noise coming from the engine and it being the belt, but I have a sound that happens when my car shifts under hard acceleration. It sounds like maybe the belt slipping. If I go from a stop, and floor it all the way near redline, then shift to second (tapshift), I hear a loud squeal/whistle sound. It almost sounds like a blow-off valve, which would be really cool, but I think it might be the belt slipping. It also does it when I floor it in regular Drive mode. Right when it shifts, this loud whistle comes from the engine bay for a second, and it's gone. Belt?
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Squeal when shifting to second
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Me also i now it the serpentine belt, have some one rev your engine while u stand out side and look by the (belt tension arm) when it revs past around 3 thousand u will hear it squeal mine is so loud i cant stand it at first it sound cool now after 30,000 miles it has gotten to the point when i never floor my car becuas it sounds like ass... I know the air sucking in the intake noise is awsome but the belt slip I am taking it to the dealer within the next week. it sad that after almost 2 years i finaly know what it isMy Progress threadhttp://www.g6performance.com/forum/s...282#post429282
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i haven't heard anything yet-Mike #2 (the self-proclaimed tallest G6 owner)
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Started to notice the same sound 3 days ago. Sounds like metal grinding against metal. I have an auto with manual shift mode.2007 G6 GT white convertible, monsoon, painted calipers, McCulloch 5300k lows, 5% rear, 35% front, Alpine MRP-M350 amp, 2 12" Memphis subwoofers, w/ amp turn off switch, custom LED's, Dynamat, digital capacitor, Katzkin leather.
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Is it possible that the belt tensioner is going bad? I can understand that if you let off the gas between shifts that the belt may slip as soon as you hit it hard again.
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Taking my car to the GM bodyshop monday to replace/repair a few things: passenger headlight lens has fog, driver side mirror rattles when music is played, with top up and music off I hear rattling noises which I find annoying, also just noticed clicking while shifting in manual mode and whistling while also in manual mode.2007 G6 GT white convertible, monsoon, painted calipers, McCulloch 5300k lows, 5% rear, 35% front, Alpine MRP-M350 amp, 2 12" Memphis subwoofers, w/ amp turn off switch, custom LED's, Dynamat, digital capacitor, Katzkin leather.
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mine does it too. It does sound like a blow off valve. lol
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Kinda does.. but i find it annoying after a while.. sounds like metal grinding to me2007 G6 GT white convertible, monsoon, painted calipers, McCulloch 5300k lows, 5% rear, 35% front, Alpine MRP-M350 amp, 2 12" Memphis subwoofers, w/ amp turn off switch, custom LED's, Dynamat, digital capacitor, Katzkin leather.
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I'm starting to suspect I have a leak in my exhaust. I recently changed my air filter, thought maybe it didn't have a good fit or it was the wrong one, so I switched it back to the OEM just to see if that solves the problem. Didn't work so it has to be the exhaust. Squeals when the pedal is down halfway in 1st gear (manual shift mode), then I hear it in second. Can't really hear it in third or fourth however.2007 G6 GT white convertible, monsoon, painted calipers, McCulloch 5300k lows, 5% rear, 35% front, Alpine MRP-M350 amp, 2 12" Memphis subwoofers, w/ amp turn off switch, custom LED's, Dynamat, digital capacitor, Katzkin leather.
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