Toyota Matrix owners have reported 2 problems related to engine knocking noise (under the engine and engine cooling category). The most recently reported issues are listed below.
The contact owns a 2003 Toyota Matrix. While driving approximately 65 mph, the vehicle lost power and stalled without warning. The vehicle failed to restart. The vehicle was towed to the contact's residence. The vehicle was not diagnosed nor repaired. Prior to the failure, when the vehicle was started, an abnormal knocking sound emitted from under the hood of the vehicle. The manufacturer was notified of the failure. The failure mileage was 171,580.
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I have a 2003 Toyota Matrix with approximately 38,000 miles on it. Vehicle was driven for about 6 or more hours when it began a loud knocking sound, and started to lose power. Then there was a loud bang. As it turned out, the car had thrown a rod through the front of the block, as well as blew the starter from the transmission housing. In addition there was a hole in the back of the oil pan about 3 inches in diameter. From the spot where the engine blew up I took measurements. The initial oil spot was 121" long by 18" wide. From there the car sprayed oil 1104' averaging 15" to 18" wide as it coasted downhill to a stop where it made another oil spot about 15" wide by 24" long. The dealership (newark Toyota 1344 marrows rd. . Newark, DE 19711) is alleging that the care had no oil in it although I provided maintenance records and a video of the oil spill from the start of the breakdown to the finish. They said they were denying the warranty work for lack of maintenance.