Engine ticky-ticky-ticky sound at idle (2007 Tahoe 5.3L, 135,000 miles)

[mjreynolds928]

I want to see the cracks need a picture . And check exhaust manifold bolts Im sure you have a couple bolts missing . Yes take finger and turn on cold engine the exhaust manifold bolts they might come out when you try to turn them . If it was a cracked flex plate it would of broke a long time ago .. only guessing.

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this is only angle of the flex plate. I tried to turn the flex plate and kept missing. Is shows one crack. The first time I looked through the hole I saw two.

 

[mjreynolds928]

You said you saw two cracks at flex plate. How did you identify that, used a camera snake up to the flywheel bolt area?

Check out the picture I added in this thread. It’s from a different angle but you can see one crack. The first time I saw the cracks, their was two. I can’t imagine how much is actually holding on to this flex plate.

 

[Sam Harris]

Check out the picture I added in this thread. It’s from a different angle but you can see one crack. The first time I saw the cracks, their was two. I can’t imagine how much is actually holding on to this flex plate.

Yikes!

 

[Black Limited]

Interesting trick. Would this work to do a rear main oil seal?

To replace rear main seal...……..you have to remove transmission, torque convertor, then flex plate, no way around it.

 

[Larryjb]

I see that the torque converter comes out with the transmission after unbolting it from the flywheel. Then, the flex plate can be removed to gain access to the rear main seal.

However, this may not give enough room to work to get tools in there to get at the seal.

 

[mjreynolds928]

I just came across these two videos:

and

They're painful and funny to watch, but also will give you an idea what you might be in for if you try it yourself. This would be one of those projects that could probably be done in a day if you know what you are doing. If you don't, it shows you what you are in for.

So I watched these videos and it was rather painful... I am wondering if I can unbolt the transmission and slide it back about 2” and replace the flex plate in stead of completely removing the tranny and transfer case???

 

[mjreynolds928]

 

[wjburken]

View attachment 238814

Yeah......That’s not good. Glad you caught it when you did.

 

[mjreynolds928]

Yeah......That’s not good. Glad you caught it when you did.

Thanks to these guys here, I found it. I made some videos on how I did this, I’ll edit the clips and publish on YouTube. I didn’t take transmission and transfer case all the way out.

 

[Sam Harris]

View attachment 238814

Holy shit! Glad you found that before it blew up on you!