Engine Clicking And Tapping Noises problems of the 2005 Chevrolet Malibu

While driving home in my 2005 chevy Malibu classic I heard a load popping sound and smoke came rolling from under the hood. I thought at first that I had blown the tire off the rim since I could smell like burnt rubber and see the smoke but this was not the case. I looked down and saw all the gauges lit up and the engine had died. I coasted to the side of the road and called the fire department because the car would not stop smoking at first. By the time they arrived it had stopped because the oil had burned off of the motor. After having the car towed home and then to a repair shop the next day it was discovered that the cap came off of the end of a rod while the piston was in the up position the fuel inside forced the piston down causing it to blow a hole in the side of the motor. How or what caused that cap to come off causing this issue? I now have to try and locate a motor to replace the one currently destroyed.

2005 Malibu maxx LS- ticking noise shaft went rod tire electrical problems engine on but nothing is registering car seem to lock up, same brake light goes out, car hesitates,replaced brakes after only 2yr, new tire. I filed a complain with attorney general bill mccollum. I have invoices of how many time my car has gone in to the shop for major problems and ever since it lock up and hesitate I don't feel safe driving it. I did found other consumer with the same complains that I have. They have had to repair tire rods, shaft and most dangerous is the steering column is locking up. I don't feel safe driving long distance or on the highway. Please help me. I wrote to gmac vp timothy lee with out no respond. Mr. Lee passed my complaint to a customer service rep that repeats himself and wont let you speak. Please if you want contact attorney office they have my complaint on file. I don't want to hurt myself or someone else should my car lock up.