2000 Chevy Malibu-Cracked Head? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-03-2014, 03:02 PM   #11
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Well if you click on the member'* profile it also gives you info on their ride and yes mcook14 listed his car as having a V-6.
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Old 03-04-2014, 11:54 AM   #12
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it is a 3.1L V6 if that clears it up so yes it has two heads. and every website i have read said that this is a common problem with this engine
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Old 03-04-2014, 01:45 PM   #13
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it is a 3.1L V6 if that clears it up so yes it has two heads. and every website i have read said that this is a common problem with this engine
I was pretty clear from the start. Yes it seems that once it has been overheated the V-6 will have continued cylinder head problems. And you need to be careful of taking too much off the heads because the rocker arms are non adjustable and can cause valves to stay open. As I said in my first post I would start looking for a used engine. I think it will be cheaper and less labor intensive for you.
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Old 03-04-2014, 03:26 PM   #14
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I was pretty clear from the start. Yes it seems that once it has been overheated the V-6 will have continued cylinder head problems. And you need to be careful of taking too much off the heads because the rocker arms are non adjustable and can cause valves to stay open. As I said in my first post I would start looking for a used engine. I think it will be cheaper and less labor intensive for you.

Are you Stupid? Have you ever spent much time writing service orders? Customers often DO NOT know what they have. Even people asking for advice on the internet often are mistaken. Especially if they don't do repairs them self'*.

2.8/3.1, 3.1 Gen III, 3.4L'* are prone to Warped heads more then Cracked heads. They are also prone to 'Core Shift" in the block. That is why broken cam engines are Scrapped not Rebuilt.
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Old 03-04-2014, 03:41 PM   #15
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it is a 3.1L V6 if that clears it up so yes it has two heads. and every website i have read said that this is a common problem with this engine
Read web-sites and forums with care.

Assuming nothing went wrong with the intake gaskets installed, and you don't have a leaking front engine cover: Your heads likely Warped. It is not UN-Common after a intake manifold leak repair to have the one or both heads go. Nor is it UN-Common to have the bottom end go.

Yet as common as head failures are, they are normally caused by Over-Heating the engine. Also the number one cause of intake gasket failures. Less common: miss-torqued intake manifold, or even a Gasket Failure. This is all assuming everything was properly installed.

I have a 3.1L V6 with 131K that needs an engine because the bottom end has knock (rod knock). Still has the GM plastic intake gaskets, never has been opened up.

If your going to change the heads, find a set off a piston slap motor. Have them pressure tested and valve serviced before install. A machine shop will not charge much at all to change stem seals, especially compared to the pain in the sack it is to change them your self. Not changing them is asking for threads about oil fouled plugs, poisoned converter, sluggish engine, poor mileage and grey smoke.
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Old 03-04-2014, 04:04 PM   #16
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Are you Stupid? Have you ever spent much time writing service orders? Customers often DO NOT know what they have. Even people asking for advice on the internet often are mistaken. Especially if they don't do repairs them self'*.

2.8/3.1, 3.1 Gen III, 3.4L'* are prone to Warped heads more then Cracked heads. They are also prone to 'Core Shift" in the block. That is why broken cam engines are Scrapped not Rebuilt.
@RPH I guess I am stupid cause I actually read the users info before I post. You seem to know everything so why don't you start your own forum so people can go to you for you rude attitude and infinite knowledge.
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