STATE
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Probable Cause
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elimination
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Exhaust leak
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Leaks at pipe connections.
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Tightening nuts and bolts to the specified torque.
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Damaged or incorrectly installed catalytic converter O-rings/gaskets.
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Replace O-ring/gasket if necessary.
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Burnt or rusted exhaust pipe or muffler (And).
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Replace component if necessary.
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exhaust noise
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Leaks at manifold or pipe connections.
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Tighten the bolts / nuts in the gaps on the connections to the specified torque. Replace gasket if necessary.
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Burnt or porous exhaust pipe or muffler (And).
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If necessary, replace the pipe/silencer assembly.
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Exhaust manifold cracked or broken.
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Replace manifold.
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Leak between manifold (ami) and head (ami) cylinder block.
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Tighten the studs securing the manifold to the cylinder head to the specified torque.
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Loss of engine power, stuttering, rev fluctuations, high fuel consumption, engine stall or difficult start
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Clogged catalytic converter (can cause serious engine problems).
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Replace catalytic converter.
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Broken pipeline.
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Replace pipeline.
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Internal rattling in muffler
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Breakage of pipes and / or partitions in the muffler.
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Replace muffler.
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The catalytic converter collapsed and parts of it fell into the muffler.
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Replace the catalytic converter assembly and the damaged muffler.
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Rumble or detonation of the exhaust system
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Damaged, worn, missing or incorrectly installed mounting rubber hangers.
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Check and replace if necessary.
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Damaged mounting hooks or hangers.
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Perform maintenance/replace hangers or hooks if necessary.
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Wrong alignment.
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Tighten all clamps according to the tightening sequence and torque.
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Damaged or mismatched exhaust system components.
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Replace damaged or inappropriate exhaust system components.
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