How to Tell if the Intake Pipe is Leaking?

[DiNatalie]

Generally, when there is a leak in the intake pipe, the following symptoms may occur: 1. Weak engine operation: Since the air entering the engine through the intake pipe crack bypasses the air flow sensor, this portion of air will dilute the combustible mixture in the engine cylinders, leading to weak engine operation. 2. Increased nitrogen oxide emissions: Nitrogen oxides (NOx) in vehicle exhaust are formed under high-temperature, oxygen-rich conditions. An excessively lean combustible mixture further promotes the generation of nitrogen oxides, thereby increasing vehicle exhaust pollutant emissions. 3. Difficulty starting: Since the engine requires a higher concentration of combustible mixture during startup, the lean mixture caused by an intake pipe leak may result in difficulties starting the engine.