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Old Jul 9, 2023 | 05:39 PM
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Default LS1 ticking

Hello… new to the forum. I have a 2003 vette with a 5.7ls1. It started making this ticking noise during a road trip. A very pronounced burble/popping on decel has accompanied this “ticking sound”…. Any thoughts?
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Old Jul 9, 2023 | 05:56 PM
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Impossible to tell you what it is from the idle clip. Could be a valvetrain related issue so the first thing you should try is to pinpoint exacly where the noise is coming from and if it's in the valvetrain then pull the valve cover and inspect.
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Old Jul 9, 2023 | 06:12 PM
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Originally Posted by 01CamaroSSTx
Impossible to tell you what it is from the idle clip. Could be a valvetrain related issue so the first thing you should try is to pinpoint exacly where the noise is coming from and if it's in the valvetrain then pull the valve cover and inspect.

thank you. Gonna pop the covers here in the next few days. Thanks for the response.
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Old Jul 9, 2023 | 11:55 PM
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see if the noise goes away while warmed up completely. If so, possible exhaust leak. could also be a lifter tick.

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Old Jul 12, 2023 | 09:24 AM
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Old Jul 12, 2023 | 02:43 PM
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Originally Posted by slothman
see if the noise goes away while warmed up completely. If so, possible exhaust leak. could also be a lifter tick.
thank you.
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Old Jul 12, 2023 | 04:27 PM
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Is it completely stock? I had the same thing happen coming home one day. I had dual springs and the inner spring gave on piston 7 so I had a slight p-v touch that left a eyelash on the piston. It was the exhaust valve. The power seemed to be down a bit and got the exhaust pop as you mentioned.

Edit: the tick was very slight on idle and a little more pronounced under acceleration.
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