The air intake hose, also known as an air intake tube, is the part that connects your air filter box to the vehicle’s throttle body. This hose is extremely important because it delivers clean, filtered air from outside the vehicle to the engine where it will be mixed with fuel for combustion.
If any of the hoses on these ports break or come free, or the ports themselves break, it will lead to a vacuum leak which will cause an excessively high or surging idle.
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