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08-18-2019, 08:00 PM
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#1 |
 Drives: 2018 Camaro ZL1 Auto Join Date: Jun 2019
Location: Duluth
Posts: 33
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ZL1 start up high tone whistling/hissing noise
My 18 ZL1 is making weird high tone whistling noise during the start up(sounds like dog crying ) and it goes away once the rpm settles down. I think it may be the belt but not sure. Anyone have this issue? And should it be checked out?
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08-18-2019, 09:12 PM
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#2 |
          
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,808
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vacuum leak...check the little connections near the supercharger
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
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08-18-2019, 09:14 PM
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#3 |
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Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,808
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if it is a belt issue, get someone to start the car with the hood raised and investigate from there
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
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08-18-2019, 09:30 PM
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#4 | |
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Drives: 2018 Camaro ZL1 Auto Join Date: Jun 2019
Location: Duluth
Posts: 33
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Quote:
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08-18-2019, 09:33 PM
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#5 |
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@viurniel
Drives: 19 ZLE A10, 15 2SS, 90 300ZXTT Join Date: May 2016
Location: Miami
Posts: 409
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Not sure anyone here should tell you if it is safe or not. Diagnose for belt and vacuum leaks as soon as possible.
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08-19-2019, 07:48 AM
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#6 |
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Oh Oh it's Friday Night!
Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018
Location: Walton Woods
Posts: 1,061
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If the noise seems to goes away quickly, more likely to be a vac leak. Check connections around intake and MAF for starters. If it lasts longer or is more random, I’d guess belt. In any event, should not be difficult to identify and correct.
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2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm
Four that wanna own me Two that wanna stone me One says she's a friend of mine... |
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08-19-2019, 01:06 PM
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#7 | |
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Drives: 2018 Camaro ZL1 Auto Join Date: Jun 2019
Location: Duluth
Posts: 33
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