04-01-2012, 10:58 AM | #1 |
Drives: 14 Silverado LTZ Z71, 16 Camaro SS Join Date: Nov 2009
Location: Jackson, Michigan
Posts: 4,407
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Strange whistling noise
After my H/C install I am noticing a strange whistling noice that sounds like its at the rear of the car.
It is very faint and it doesnt always happen. It almost sounds like a tiny little turbocharger spooling up or something. What is this? Fuel pump? Im not sure. |
04-01-2012, 12:15 PM | #2 |
Drives: 2010 aqua blue SS/RS M6 Join Date: Feb 2010
Location: plainfield, IL
Posts: 2,706
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Omg... Not you too! I have this stupid whine noise but from the front of my car after the cam change I took it to the dealer and he said it seems like a pulley or alternator and of course right after I do my cam! Check your trans fluid, maybe they lost some fluid with the line out and forgot to replace it. This happen to me, was not much but it did loose some.
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10.91 at 122 H/C stock block N/A
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04-01-2012, 02:10 PM | #3 |
Drives: 2010 M6 2SS Join Date: Mar 2011
Location: South Windsor, CT
Posts: 1,202
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When does it happen?
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2010 Camaro SS M6. Heads/Cam/Intake/Headers/Exhaust/Suspension |
04-01-2012, 02:41 PM | #4 |
Drives: 14 Silverado LTZ Z71, 16 Camaro SS Join Date: Nov 2009
Location: Jackson, Michigan
Posts: 4,407
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Happens in the first couple gears with gradual acceleration. The sound comes in at about 2k rpm and steadily increases in pitch (like a small turbo winding up is how i can describe it) until about 3000 rpm where it then goes away.
I havent noticed it cruising...just when going up through the gears at moderate throttle. It sounds like it is toward the rear...but you know how that goes...it is hard to tell exactly where sounds are coming from sometimes. Especially if they are faint like this one. As bad70supreme said...and I have read it elsewhere...this could possibly be the belt...and I did change to a different tensioner and belt. Any other ideas? |
04-01-2012, 03:37 PM | #5 |
Drives: 2010 M6 2SS Join Date: Mar 2011
Location: South Windsor, CT
Posts: 1,202
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I'm running the same tensioner and belt as you as far as I know, and I don't have any noise like that. I don't know what it could be. I can't hear much of my car other than the exhaust though haha.
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2010 Camaro SS M6. Heads/Cam/Intake/Headers/Exhaust/Suspension |
04-01-2012, 04:13 PM | #6 |
I am not "Fast & Furious"
Drives: 2010 Camaro LSX454 1LE Join Date: Nov 2008
Location: Greeley Colorado
Posts: 1,040
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Maybe the tensioner is cranked to tight, check to see if there is a little play in the belt. The Katech tensioner should be torqued to 25 ft lbs, then tightend down.
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The day I take a bend too fast
Judgement that could be my last I'll be wiped right off the slate Don't wait up 'cause I'll be late, I'll be late |
04-01-2012, 08:06 PM | #7 |
Drives: 2010 aqua blue SS/RS M6 Join Date: Feb 2010
Location: plainfield, IL
Posts: 2,706
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Sounds just like what i am going though. I have stock balancer and did not change anything other then the cam, gaskets and bolts. This is strange we both are dealing with this, I have heard there are problems with the air conditioner making this noise as well! I would love to figure it out, I plan on removing the belts and running the engine and see if it stops. Can you hear it when you are sitting still and just rev the engine a bit, I can.
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10.91 at 122 H/C stock block N/A
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04-01-2012, 08:30 PM | #8 |
Drives: 2010 M6 2SS Join Date: Mar 2011
Location: South Windsor, CT
Posts: 1,202
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I've also found that the FAST 102 just makes it louder under the hood...it's got basically none of the noise cancellation properties that the stock manifold has.
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2010 Camaro SS M6. Heads/Cam/Intake/Headers/Exhaust/Suspension |
04-02-2012, 11:37 AM | #9 |
Drives: 14 Silverado LTZ Z71, 16 Camaro SS Join Date: Nov 2009
Location: Jackson, Michigan
Posts: 4,407
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Still not sure yet guys.
I am going to look into it tomorrow. I have to work tonight so today is not a good day. I will figure this out soon enough. Bad70...let me know if you figure anything out. |
04-02-2012, 07:03 PM | #10 |
I am not "Fast & Furious"
Drives: 2010 Camaro LSX454 1LE Join Date: Nov 2008
Location: Greeley Colorado
Posts: 1,040
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I thought of one thing you may check. The FAST manifold has a small vacuum port in the back that needs to be capped.It is next to the big port that is used for the brake booster.
__________________
The day I take a bend too fast
Judgement that could be my last I'll be wiped right off the slate Don't wait up 'cause I'll be late, I'll be late |
04-03-2012, 12:55 PM | #11 | |
Drives: 14 Silverado LTZ Z71, 16 Camaro SS Join Date: Nov 2009
Location: Jackson, Michigan
Posts: 4,407
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Quote:
Hmmm...I wouldnt think they would leave that open. |
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12-07-2012, 01:45 AM | #12 |
Drives: SS Join Date: Nov 2012
Location: Seattle
Posts: 110
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i have this noise as well
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12-07-2012, 01:46 AM | #13 |
Drives: SS Join Date: Nov 2012
Location: Seattle
Posts: 110
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did you guys discover anything?
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