Exhaust Leakage

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

Problem	Action
DEFINITION: An exhaust leak may show stains at the area of the leak. The leak may be felt by holding a hand close to the suspected areas or using a smoke pencil. The leak may make a popping or hissing noise. Refer to Symptoms - Engine Exhaust prior to beginning this table.
Misaligned or improperly installed exhaust system components	Align and tighten the exhaust system components to the required specifications. Make sure the exhaust hangers are in the proper locations and not loose.
Exhaust leaks at the following connections: Exhaust manifold to pipe Flange	Tighten the affected components to the required specifications.
Seals or gaskets leaking Exhaust manifold to cylinder head Exhaust pipes to exhaust manifold Catalytic converter connection	Replace the leaking seal or gasket.
Irregularities at the mating surfaces on the flange connections	Repair as required or replace the affected component.
Exhaust manifold cracked or broken	Replace the exhaust manifold. Refer to Catalytic Converter Replacement (LV7) Catalytic Converter Replacement (L5Q) .
Exhaust system component connection welds leaking	Replace the leaking component.
Muffler or resonator, if equipped, damaged or leaking at the seams	Replace the affected muffler. Refer to Exhaust Rear Muffler Replacement .