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04-23-2025, 08:15 PM
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#1 |
 Drives: 2023 Camaro ZL1 1LE Join Date: Dec 2022
Location: Allentown, Pennsylvania
Posts: 8
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ZL1 1LE slight engine ticking noise
Hey folks,
I’ve got a 2023 Camaro ZL1 1LE and had my hood open recently while it was running. I noticed a slight ticking noise at idle. My gut tells me it’s the fuel system, but I wanted to include a video to see if anyone disagreed or thought the noise was concerning. Let me know what you all think, thanks! Video: https://youtube.com/shorts/XP6Y2v2lY...aGHFSYaYpgNhtP |
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04-24-2025, 01:11 PM
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#2 |
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Drives: 2023 Camaro SS 1le Join Date: May 2015
Location: Indiana
Posts: 27
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I can hear it. I believe this is the High Pressure Fuel Pump noise that many owners notice from time to time. From your video, I would say your car is quieter than most. I usually notice the LT4 cars have less noticeable HPFP noise, I guessed this is because the supercharger dampens the noise.
Either way, nothing to worry about there. My car sounds like that too. Sometimes much louder. Every LT1/LT4 I have been around sounds like that. L83/L84 motors don't, for some reason, but the L87 (truck 6.2) sounds just like that at idle. |
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04-24-2025, 03:21 PM
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#3 |
  
Drives: 2017 2ss 6mt Join Date: Mar 2024
Location: dallas
Posts: 949
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Or the purge solenoid. Everything GM has loud purge solenoids. Try unplugging it and see if it goes away.
But it sounds more like high pressure fuel pump |
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04-24-2025, 08:48 PM
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#4 |
Drives: 2023 Camaro 1SS 1LE 6MT Join Date: Nov 2023
Location: Vancouver Island
Posts: 552
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I heard someone on here describe our engines as having a "sewing machine" kind of sound. I'd agree with that.
That being said, I think mine has gotten slightly quieter compared to when it was brand new. Like everything's completely broken in now. (Or, I could just be used to it now!) |
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04-26-2025, 02:11 AM
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#5 |
  
Drives: 2020 ZL1 1LE Join Date: Sep 2012
Location: Austin, Texas
Posts: 1,381
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Direct injection engines make a clicking noise audible at idle.
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2020 ZL1 1LE [Moroso SC Expansion Tank, otherwise stock]
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05-04-2025, 12:42 AM
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#6 |
Drives: Camaro 2SS & ZL1 Join Date: Mar 2018
Location: Oklahoma
Posts: 876
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If it IS the ZL1 tick, this is everything you need to know.
My video is in there somewhere https://www.camaro6.com/forums/showthread.php?t=618339
__________________
2017 Camaro 2SS A8 Bright Yellow NPP MRC
2023 Camaro ZL1 A10 Radiant Red |
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05-07-2025, 10:33 AM
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#7 |
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Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 5,156
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Sounds normal to me. Mine makes more injector/pump tick noise than that.
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