You are browsing camaro6 
05-09-2021, 07:11 AM
|
#15 | |
|
Coupe Newbie
Drives: 2017 ZL1, 2021 Corvette Convertible Join Date: Jul 2011
Location: Columbus, Ohio
Posts: 3,281
|
I recorded this cold start-up of my LT4 in March of 2018.
In September of 2018, the supercharger idler pulley was replaced under warranty because the noise had become constant and didn't go away after warmup. No strange startup noises since the pulley replacement.
__________________
 |
|
|
|
|
05-09-2021, 09:30 AM
|
#16 |
          
Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016
Location: Georgia
Posts: 5,813
|
hawk, mine doesn’t have that sound like yours used to have.
__________________
ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.
|
|
|
|
|
05-09-2021, 08:25 PM
|
#17 |
 Drives: Camaro ZL1, Durango SRT, Mustang GT Join Date: Feb 2021
Location: Palmer Alaska
Posts: 16
|
Can the engine be started with the supercharger belt removed? That would be an easy way to isolate it to the supercharger itself or the belt/pulley system.
__________________
Camaro ZL1, Durango SRT, Mustang GT, Mazda Miata
|
|
|
|
|
05-10-2021, 01:13 PM
|
#18 |
|
Drives: Camaro ZL1, Durango SRT, Mustang GT Join Date: Feb 2021
Location: Palmer Alaska
Posts: 16
|
I pulled the supercharger belt this morning and started it up - sounded perfect - maybe my car just wants to be an SS!
At least I know it’s in the pulley / supercharger system - hopefully that will expedite troubleshooting by the dealer tech.
__________________
Camaro ZL1, Durango SRT, Mustang GT, Mazda Miata
|
|
|
|
|
05-10-2021, 05:00 PM
|
#19 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
|
Quote:
Sounds like its going to be something to do with the bypass valve or one of the pulleys. It sounds more like a pulley going bad to me.
__________________
928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
|
|
|
|
|
05-10-2021, 06:46 PM
|
#20 | |
|
Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016
Location: Georgia
Posts: 5,813
|
Quote:
__________________
ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.
|
|
|
|
|
|
|
|
|
|
Post Reply
|
|
|
