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Old 03-04-2024, 09:16 PM   #1
evader
 
Drives: Chevy Camaro
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Click Noise When Hot Start

Hi all,



I have a 2011 Camaro SS L99. This recently started happening and there is no code to correlate with this issue.



I have uploaded a quick 3 second video, and honestly, the only time it happens is during a hot start.


I thought it was the starter, but it starts fine. I thought it was the battery and alternator, but I checked with a multimeter and everything seemed to be operating under normal conditions.


https://www.youtube.com/shorts/zQV-ZCNCmhI



It doesn't happen on cold start, which is strange. The car never fails to start.



I can't even really explain the clicking sound, but it clicks and goes. It doesn't keep clicking. Any ideas?




What does this sound like?
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Old 03-04-2024, 10:34 PM   #2
chevy pilot

 
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Spark knock.
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Old 03-05-2024, 05:32 AM   #3
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Spark knock.
Agree ^
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Old 03-05-2024, 08:51 AM   #4
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Agree ^
Also agree on this. What octane fuel are you using??
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Old 03-05-2024, 09:34 AM   #5
evader
 
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I'm using 91, the highest California allows. :(


I also have an EVAP problem that was there before, but not sure what would cause that. EVAP could quite literally be anything.
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