Two problems related to engine knocking noise have been reported for the 2003 Toyota Corolla. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Corolla based on all problems reported for the 2003 Corolla.
I was driving to go to school and I noticed my engine making a loud knocking sound. I took it to a mechanic and they told me that the engine is burning oil due a ring or rings torn up. One mechanics mentioned that he has had several Corollas 2003 coming with the same problem and now I am stuck with a car that burns a lot of oil and the engine is in critical condition.
While traveling on the highway and without prior warning. There was loud knocking noise coming from underneath the vehicle.