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#1
07-21-2008, 04:41 PM
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Exhaust manifold
I am on my third rear exhaust manifold on my 02 impala with a 3.8L. Anybody else having this problem. The original split at the seam at 98,000. The second one cracked near the flange lasted 10,000. I have not pulled the current one out to see where is is bad. I have about 7,000 on it. Any ideas on what to do to make the next one last.
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#2
07-22-2008, 09:48 AM
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Re: Exhaust manifold
Quote:
were the replacements OEM ? if not where made china/india...it is not that uncommon in hot off road type driving to create stesses that cause this componet to crack...after 100,000mi .... the replacements appear to me to be defects in manufacture....
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#3
07-28-2008, 08:49 AM
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Re: Exhaust manifold
The replacement manifolds were "aftermarket". I have a GM one coming from GM direct I guess while I am at it I will look at all the mounts and flex pipe for problems. Any other suggestions?
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#4
07-28-2008, 09:00 AM
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Re: Exhaust manifold
Quote:
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#5
08-01-2008, 02:08 PM
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Re: Exhaust manifold
Well I put the new manifold on. This last one split on the weld seem. I checked the felx on the exhaust checked the engine mounts. I didnt find anything wrong with them. I am hoping that this OE will last.
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#6
08-01-2008, 08:37 PM
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Re: Exhaust manifold
Quote:
cracking at the weld is the problem not your vehicle ...I'm sure the OEM part will last another 100,ooomi......
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