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[Z06] Loud noise (injectors?)

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Old 01-07-2018, 01:39 PM
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427V8BB
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Default Loud noise (injectors?)


Hey guys I have a noise coming from the engine I think it’s either the injectors or the pushrods it’s always had it since my head and cam swap I don’t remember when it was stock. But it sounds like a ticking sound in a way but at a pretty fast pace. I was told injectors is this true? I can’t hear it past about 2500rpms cause of my exhaust.

thanks guys I’m sure it’s fine but don’t want a lifter or anything going wrong



Last edited by 427V8BB; 01-20-2018 at 01:02 PM.
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skywalker (01-20-2018)
Old 01-07-2018, 07:22 PM
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Dirty Howie
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Originally Posted by 427V8BB
Hey guys I have a noise coming from the engine I think it’s either the injectors or the pushrods it’s always had it since my head and cam swap I don’t remember when it was stock. But it sounds like a ticking sound in a way but at a pretty fast pace. I was told injectors is this true? I can’t hear it past about 2500rpms cause of my exhaust.

thanks guys I’m sure it’s fine but don’t want a lifter or anything going wrong
You will need to get some audio/video for any help.

Likely injectors or valve train noise which is common for all LS7. Has it changed recently?


DH
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427V8BB (01-21-2018)
Old 01-08-2018, 03:14 PM
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MTPZ06
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Injectors do tick, and these cars can be a tad noisy on the top-end....but, how long ago (mileage-wise) was the head swap? Were lash caps reinstalled on the Ti intakes? Could be lifter noise...did you measure pushrods for proper preload?

My valvetrain is actually quieter post head swap.
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427V8BB (01-21-2018)
Old 01-09-2018, 08:44 AM
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Apocolipse
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Agreed on above, much quieter and running low preloaded (0.035) johnson lifters.
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427V8BB (01-21-2018)
Old 01-20-2018, 01:00 PM
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Originally Posted by MTPZ06
Injectors do tick, and these cars can be a tad noisy on the top-end....but, how long ago (mileage-wise) was the head swap? Were lash caps reinstalled on the Ti intakes? Could be lifter noise...did you measure pushrods for proper preload?

My valvetrain is actually quieter post head swap.
I got a video finally here it is http://www.youtube.com/watch?v=u-gB5cM1-o0
On first post


And don’t mind the check engine light that’s fromlong cranking cause of my overheated starter only happens when I’m on it hard and long need to wrap my starter or coat the headers

Last edited by 427V8BB; 01-20-2018 at 01:03 PM.
Old 01-20-2018, 01:56 PM
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meanjoe
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I would suggest that you record the video from under the hood. I'm thinking that it would be easier for us to hear this noise you're talking about.
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427V8BB (01-21-2018)
Old 01-21-2018, 09:35 AM
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TXGS507
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What he said....


Originally Posted by MTPZ06
Injectors do tick, and these cars can be a tad noisy on the top-end....but, how long ago (mileage-wise) was the head swap? Were lash caps reinstalled on the Ti intakes? Could be lifter noise...did you measure pushrods for proper preload?

My valvetrain is actually quieter post head swap.
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427V8BB (01-21-2018)
Old 01-21-2018, 10:05 AM
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Originally Posted by meanjoe
I would suggest that you record the video from under the hood. I'm thinking that it would be easier for us to hear this noise you're talking about.
Ok! Will do soon as I get to work today, it’s coming from the pushrods/rockerarm area when I place my ear 6 inches away from that area

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