The Best 2002 Jeep Liberty Check Engine Light Comes On References. Web if the sensor goes bad or there are any leaks in the air intake tract, the check engine light will come on. Whereas a steady check engine light may mean you merely need to tighten you gas cap next time you stop in order to reset the service.
Web the check engine light comes on whenever the systems send out an abnormal reading. This can be done by unhooking both cables from the battery terminals (negative cable first) and waiting 30 seconds before reconnecting them. Web a check engine light can indicate a broad spectrum of problems with your 2002 jeep liberty.
