You might also notice your coolant level dropping, your engine running hotter than usual, and your car’s performance taking a nosedive. Here are a few reasons why your muffler may be leaking water Water condensation resulting from engine combustion every time your car comes on, combustion occurs in the engine, producing a mixture of water and carbon dioxide The exhaust gasses depart the combustion. The exhaust system has only one exit, so when water is leaking from the muffler but not from the tailpipe, the main cause would be rust It’s also possible that the exterior of the muffler is condensing water as it heats up
Is it normal for water to leak from your muffler Water leaking from your muffler is not necessarily a cause for alarm. Water may be coming out of your exhaust for several reasons, including engine combustion and water condensation, engine overheating and coolant leaks, catalytic converter byproduct, a blown head gasket, smoke and water emissions, and a faulty piston.
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