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Exhaust manifold

Tiny
SURREAL7
  • MEMBER
  • 1994 GEO PRIZM
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 165,000 MILES
I have a 94 Geo Prizm with 165,000 miles. I had to replace my exhaust manifold less than 2 years ago because it had a large crack in it. I noticed the other day that it has a crack in the new one, again, and in the same place. Is this the sign of an underlying problem, or should I just replace it again?
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Tuesday, November 16th, 2010 AT 12:34 PM

2 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Some models tends to have exhaust manifold cracking after some time of usage. It is not because of other factors but rather design or material fault.

Getting it replaced is all you need to do.
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Tuesday, November 16th, 2010 AT 12:40 PM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
There should be a new heat shield with manifold, it has vents cut into it. Original vents were solid and caused the problem.
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Tuesday, November 16th, 2010 AT 2:22 PM

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