Acura TL 2009-2014 Exhaust System Bolt Torque Specifications

Proper torque ensures a secure, leak-free seal and prevents damage to components. Under-tightening can lead to exhaust leaks, while over-tightening can strip threads or distort flanges, necessitating costly repairs. For example, if you don't torque the catalytic converter bolts correctly, exhaust leaks can develop, affecting the O2 sensors and potentially causing a check engine light.

While specific specifications can vary slightly between sub-models and components, generally, for the exhaust manifold to cylinder head, use 23 ft-lb (31 N-m). For the exhaust pipe to catalytic converter flange, use 33 ft-lb (45 N-m). For the intermediate pipe to muffler flange, use 16 ft-lb (22 N-m). Always consult your specific service manual for precise torque values for your particular year and model.

Yes, it's highly recommended to use anti-seize compound on exhaust bolts. The extreme heat and harsh conditions under the car can cause the bolts to corrode and seize, making them very difficult to remove in the future. Apply a thin layer to the threads before installing to ease future removal. This is especially important in areas prone to road salt.

Old exhaust gaskets can become crushed, hardened, or damaged and may not seal properly, which will almost certainly cause exhaust leaks. Always use new gaskets when reassembling your exhaust system to maintain a proper seal. For example, if you reinstall an old flange gasket, you may hear a 'put-put' sound indicating a leak.

You'll need a torque wrench, sockets of the correct sizes (typically 10mm, 12mm, 14mm), and potentially an extension bar. A good quality torque wrench is crucial for accurate tightening. Ensure your torque wrench is calibrated regularly to ensure accuracy.