Lets play a game: Mystery Noise
Its not any of the following: Belt, or pulley related Suspension related Driveline related Engine valvetrain related Now, with all that there, what would you guess the kind of noise was? I don't need specifics as to what on this car is making the noise, just toss some ideas out. |
im guessing the car isn't moving
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sounds like a dash rattle or something... maybe 2 pieces of plastic rubbing
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Optispark
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Does it do it sitting at idle, revving?
Are you sure it's an underhood noise vs. driveline? |
Not at idle, you need to blip the throttle to have it make noise in park.
Going up and down the lift seemed to narrow it down to driver side, near the firewall, and that was obviously in park, so I am crossing out driveline. |
What did you guys check when it was on the lift? Any chance it could be a tiny exhaust leak?
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Loose nut behind the wheel?
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It could be an exhaust leak for sure, just isn't a very obvious one. No soot build up or ticking at idle. |
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Any thermal part to it? In other words, if you let the thing run for an hour or so does the noise change? Just thinking pipe expansion. |
Negative, it will do it when cold or hot. No change in sound level IMO.
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Sorry for all the random thoughts. LOL.
Did you do a full HVAC delete? No blower motor? |
Thats what the thread is for, we are out of ideas so anything, off the wall is all good :lol:
And yes, all HVAC is gone. |
Is it in any way boost referenced? Like it shows up under boost but not vacuum? Or the opposite?
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I know you clearances exhaust. But have you checked intercooler and cold side piping to bumper and bumper related parts?
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That says 'mechanical squeaking' to me. Something rubbing under the dash, maybe? You eliminated the ABS, right? Possibly the brake lines rubbing on something, or the proportioning valve?
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Keep the ideas coming guys, appreciate em |
Could it be a chipmunk and/or gerbil playing a mini snare drum in the hvac vents?
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If you take the drive belt off does the noise happen? Just to 100% eliminate belt.... Cause it damn sounds like a belt lol
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Sounds like the vent blower motor or possible tire out of balance.
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He already did the belt pull thing.
Water pump, electric or manual? Another wild idea. |
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