Generation V Internal Engine 2013-20xx LT1

bad engine noise ls1 need help!!

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Old Feb 8, 2015 | 08:08 PM
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Default bad engine noise ls1 need help!!

Today my engine just shut off out of nowhere.the engine only stays on when i push the gas pedal, has bad misfire. All ignition coils, spark plugs, and wires are good. Click on link for the video of the.engine thanks.

http://m.youtube.com/watch?feature=youtu.be&v=NMlBQTWgzzE
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Old Feb 8, 2015 | 08:35 PM
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Hard to tell from the video. I would pull the belt(s) and see if anything changes. It will make it easier to hear where the noise is coming from and will eliminate any accessories being the problem.
You could pull all plugs and do a compression test or if you have the tools and know how- do a leak down test.
You can also drain the oil and see what it looks like. If you have the tool you can cut the oil filter and see if it has any debris in it.

Try running it as little as possible, You could do more damage that may cost more in the long run.
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Old Feb 8, 2015 | 09:56 PM
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Ok Thanks , so pull all belts off.and.turn car on? Then do a compression test


Originally Posted by LLLosingit
Hard to tell from the video. I would pull the belt(s) and see if anything changes. It will make it easier to hear where the noise is coming from and will eliminate any accessories being the problem.
You could pull all plugs and do a compression test or if you have the tools and know how- do a leak down test.
You can also drain the oil and see what it looks like. If you have the tool you can cut the oil filter and see if it has any debris in it.

Try running it as little as possible, You could do more damage that may cost more in the long run.
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Old Feb 8, 2015 | 11:49 PM
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Pull the belt and start the car and it should make it easier to hear where the noise is coming from.

A compression test may help you narrow down where the problem might be, If you're not mechanically inclined I would try to get someone who is to help you diagnose the problem.
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Old Feb 9, 2015 | 01:08 PM
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Pull off valve covers and check the rockers, springs and pushrods first. Easiest thing to do first.
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Old Feb 10, 2015 | 12:10 AM
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Ok, thank you, I'll check it out

Originally Posted by JordanRN
Pull off valve covers and check the rockers, springs and pushrods first. Easiest thing to do first.
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Old Feb 14, 2015 | 01:14 AM
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Its the pistons.

Originally Posted by LLLosingit
Pull the belt and start the car and it should make it easier to hear where the noise is coming from.

A compression test may help you narrow down where the problem might be, If you're not mechanically inclined I would try to get someone who is to help you diagnose the problem.
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Old Sep 30, 2015 | 04:01 PM
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Are you running stock tune?
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