Investigation of NBC4 about EZ Lube. Really interesting. Becareful the next time you go to an auto repair.

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One way to check to see if a mass air flow sensor has gone bad is by tapping on the engine when it’s running to see if it stumbles. Find out how to remove a mass air flow sensor to check if it has gone bad with help from an ASE-certified master automobile technician in this free video on mass air flow sensors. Expert: Clark Mason Bio: Clark Mason is an ASE-certified master automobile technician. Filmmaker: Christian Munoz-Donoso

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