Loud Engine Noise problems of the 2014 Chevrolet Impala

I was driving to my sister's house on sept. 27 2020. When my car started making a loud noise from the engine and I noticed the engine light came on. I pulled over called my husband, when he got there he opened the hood and noticed the catalytic converter broke completely off my engine. We managed to get to a friends down the road for the night until we able to get it towed to the dealer's the next day. When I called the and told them what happened they told it was my fault that I must of hit something to make fall off. I do not have any other underneath my car, I tried to tell them this was a safety issue and that I could have possibly burned to death in my own car if I hadn't of pulled over upon hearing. . . Thankfully I was in an area where I could pull over. I did call gm also they to said it was my fault and or weather conditions. I told them it was not my fault I did not hit anything and weather have nothing to do with it, bottom line is that part should have never fallen off to begin with. Because it did fall off I felt it should have been covered under warranty on your website I noticed you already have a primarily investigation going on this matter complaint # pip5419b.

Tl- the contact owns a 2014 Chevrolet Impala . The contact stated that at 81,000 miles, the catalytic converter had fractured and was replaced at patriot Chevrolet Buick GMC dealer, (4401 fort campbell blvd, hopkinsville, ky 42240, (270) 886-1207). However, the failure recurred. The contact stated that while driving there was a loud noised coming from the motor and exhaust fume emitted into the vehicle cabin. The contact stated that her husband noticed the catalytic converter was fractured. The contact called the same dealer and later taken the vehicle to the same dealer and was informed the vehicle was out of warranty for the repair and did not serviced the vehicle. The contact called the manufacturer and made aware of the failure and the contact was informed to take the vehicle to a GMC dealer for a diagnostic testing and provided a case number: 9-5715692940. The contact later taken the vehicle to an independent mechanic and was diagnosed the the catalytic converter was fractured. The technician welded the fracture. The vehicle was repaired. The failure mileage was 121,000. Aw.

The contact owns a 2014 Chevrolet Impala. The contact stated that while driving at various speeds, a loud roaring noise was heard, the engine vibrated, and when depressing the on-star button a clanking metal noise was heard under the vehicle. The engine warning light illuminated. The vehicle was taken to rincon Chevrolet inc. Located at 5480 GA highway 21 s, rincon, GA 31326 where it was diagnosed with a crank valve failure, which was allowing to much air into the engine. The contact stated that the vehicle was not repaired due to the dealer was waiting the crank valve parts. The manufacturer was notified of the failure and referred the contact to NHTSA. The failure mileage was approximately 77,000.