The exhaust manifolds on the driver and passenger side are cracked. Ticking sounds are made while car is cold and goes away after they have heated up enough, typically after 5 minutes. This results in letting in exhaust fumes inside the cabin, regardless of the air conditioner/heater is on, which leads to being lightheaded and nearly passing out and crashing. The fumes are stronger when stationary but happens no matter what, even after the ticking is gone and driving down the highway.