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Exhaust bolt of automobile cooling system is a kind of bolt connecting exhaust engine and engine, which is usually located at the air inlet of exhaust engine. Its main function is to fix the exhaust machine on the engine through the exhaust machine bolt when the engine is running, so as to ensure the sealing and stability between the exhaust machine and the engine.

The fastening strength of exhaust bolt is very important for the normal operation of exhaust system. If the bolt of the exhaust machine is loose or the thread is damaged, it may lead to air leakage in the exhaust system, affect the exhaust efficiency of the engine, reduce the engine performance, and even cause engine instability or failure.

Therefore, it is an important measure to check and maintain the fastening state of exhaust bolts regularly to ensure the normal operation of automobile cooling system and engine performance. If the bolt of the exhaust machine is found to be loose or damaged, it should be adjusted or replaced in time to ensure the tightness and stability of the exhaust system and ensure the normal operation of the engine.