This kia sorento makes a very high over-revving noise while driving up the street. the kia often seems to try to find the gear it needs to be in while driving and makes a loud engine noise when going up hill or driving more than 20 mph. this kia also makes a internal clicking noise when making right turns, which is often worse when turning on an incline. the engine has a loud rattle noise when started and the car is often hard to start, meaning when i turn the ignition key, the car may start 50 percent of the time on the first start.