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06-20-2014, 11:31 PM

#26

Spawne32

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Quote:

Originally Posted by 2010CobaltLTfan

The thing it I started it up this morning and it didn't make a noise and he started it up also no noise only makes noise it seems after it's been running my car has thrown codes with out cel on and I don't have t/c

What codes has it thrown?

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06-20-2014, 11:37 PM

#27

2010CobaltLTfan

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Quote:

Originally Posted by Spawne32

What codes has it thrown?

The only code it's thrown that I know of is the rear o2 threw code with out cel like it normally did I haven't tested it since the sound tho

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06-20-2014, 11:43 PM

#28

Spawne32

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Quote:

Originally Posted by 2010CobaltLTfan

The only code it's thrown that I know of is the rear o2 threw code with out cel like it normally did I haven't tested it since the sound tho

Well then you dont have any issues with your VVT lol

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06-21-2014, 12:20 AM

#29

2010CobaltLTfan

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Quote:

Originally Posted by Spawne32

Well then you dont have any issues with your VVT lol

Then what is the problem why does it only make the noise after it's been running awhile not all the time

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06-21-2014, 12:26 AM

#30

Spawne32

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Quote:

Originally Posted by 2010CobaltLTfan

Then what is the problem why does it only make the noise after it's been running awhile not all the time

How are you sure that its 100% the timing chain making the noise? Have you used a stethoscope to isolate where the sound is coming from?

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06-21-2014, 12:41 AM

#31

2010CobaltLTfan

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Quote:

Originally Posted by Spawne32

How are you sure that its 100% the timing chain making the noise? Have you used a stethoscope to isolate where the sound is coming from? Video Link: https://www.youtube.com/watch?v=6mpNRJ7m-c8

I don't know honestly it didn't make the noise all the time only every once in a blue moon with the old tensioner so I saw that could be what was going on so I changed it and now I have the noise more often after being ran awhile

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06-21-2014, 01:22 AM

#32

09outlander

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If you didn't take your valve cover off when you installed the new tension then you never released the new tensioner and that is likely what is causing this noise.

That's it I'm done with this thread.

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06-21-2014, 01:35 AM

#33

2010CobaltLTfan

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I'm going to look at it myself in the morning in going to post pics/video with the new one in how do I release it

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06-21-2014, 02:32 PM

#34

2010CobaltLTfan

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I just looking at it timing area looks perfect no issues there but you can tell that the back cam is got issues what he did was but the cam sensor on the ohm reader and wasn't reading the way it was supposed to it's not getting enough oil to the cam and you can see the wear is different than the front cam

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