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10-30-2013, 10:16 AM #1
Loud whistle inside airbox near TB
Hey guys I have a loud whistle on warmup, it goes away after a few minutes, however is there any way to fix this? Any help is greatly appreciated! Take care.
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10-30-2013, 11:30 AM #2
- Join Date
- Apr 2010
- Location
- Alabama
- Posts
- 3,625
Black/ Silver- 98 TA WS6/ 01 C5 Corvette
Do you still have the air pump or have you deleted it? If not it is probably that. Mine made a similar noise and I got rid of it and now no noise but maybe I can't hear it over my exhaust.
1998 Trans Am WS6 - Phantom
421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk HP+ brake pads, VFN WSQ Hood, C5-R timing chain, SLP oil pump, E85 tune, Walbro 450 fuel pump, Deatschwerkz 95# injectors, Breathless performance headlights, Frost Tune, !HVAC.
(Coming Soon) BMR DSL, UMI TQ Arm
421 LQ9 14.8:1 on E85 Build/
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10-30-2013, 01:26 PM #3
Its pretty much stock..ish so I'm assuming I do habe the air pump in place, ill give it a try, Thank you!
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10-30-2013, 01:48 PM #4
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10-30-2013, 03:21 PM #5
Roger that. Thank you for your help!
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10-30-2013, 06:09 PM #6
Here's a write up on the secondary air system: http://www.ls1.com/forums/f6/seconda...emoval-130641/ The system only runs for a short time on cold start up, so very possible that this is the cause of your noise.
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10-31-2013, 07:54 AM #7
Thank you soo much very useful info!
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11-01-2013, 02:46 AM #8
Glad to assist. Let us know what you find once you tear into it. Easiest check would be to pull the fuse for the secondary air and see if the noise goes away. You'll probably trip the SES in the process. The system only activates on cold startup -- once the engine is warm, I can't say for certain if it runs the pump or not.
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11-01-2013, 06:06 AM #9
Pump only runs on initial start up I'm fairly certain.
Boost gets you laid, unless your name is Jon.
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11-01-2013, 03:25 PM #10
That's what I thought, but it has been awhile since I read all that stuff.
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11-24-2013, 06:14 AM #11
Be aware that if your state requires a "smog certificate" to register the vehicle, removing or disconnecting the air pump (where it can not be reconnected), can cause more problems than what it is worth.
SteveC
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