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Old 03-29-2014, 01:19 AM   #1
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Bad Intake Manifold?

Hello people,I just joined this forum,thanks for having me.

I am having some on going trouble with my stock intake manifold.
Here is my story in short : check engine light came on,gave me the codes 171 and 174.lean on both banks,changed the mass air flow sensor 3 times,no change.
I then got some carb cleaner and looked for leaks,there was a leak on the back of the intake manifold so I took it apart and changed the gaskets.
I put everything back together,checked for any more leaks and ITS STILL LEAKING from the SAME PLACE ONLY!! What am I missing? Is the manifold bad or what??? I need help!!! Thanks.
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Old 03-29-2014, 04:12 AM   #2
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Did u look for cracks in the manifold when u had it off?
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Old 03-29-2014, 10:25 AM   #3
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I did not look for any because at that time I thought it was just the gaskets!
I've heard that sometimes the crack can be very very small,is there a specific way for checking for cracks on the manifold??
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Old 03-29-2014, 02:12 PM   #4
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Maybe some fluorescent spray dye.
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Old 03-29-2014, 04:33 PM   #5
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Have you guys had such a problem or heard of bad intake manifolds?? My other question is : if I take it off and take it to a shop,would they be able to determine if it's bad??
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