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bwhipple
New User
| Posts: 1
| Joined: 09/06
Posted: 09/20/06
09:28 AM
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I have a 1999 Mitsubishi Montero Sport LTD. The exhaust manifolds on my SUV seem to keep cracking. I had one fixed and about 2 months later the other one cracked as well. I have replaced one side for the third time. Can anyone tell me what may be causing them to crack. I need to get it repaired again but I want to fix the problem also. I had aftermarket catalytic convertors put on at one point because the OEM convertors were $800.00 a piece. Could these be causing them to overheat and maybe crack ?? Im totally at a loss on why this keeps happening. I also am experiencing some pretty good engine hesitation until warm up.Thanks !
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nickb2
Guru
| Posts: 816
| Joined: 08/06
Posted: 09/20/06
10:31 AM
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check to make sure when the aftermarket converters were put did they eliminate any flex joints...also is the engine running lean causing excessive heat...is there a check engine light on....what kind of manifolds are you putting on...
Nick
ASE Master Auto Technician, L1
ASE Master Auto Technician, L1, ASE Certified Service Consultant, ASE Certified Parts Specialist, Chrysler Certified Service Manager/Technician
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mech22
User
| Posts: 67
| Joined: 01/06
Posted: 09/21/06
09:57 AM
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it sounds like the exhaust system is on a bind and stressing the manifolds. it could be the pipes bent incorrectly or the hangers are not supporting the the weight of the exhaust system
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