Front Seat Heater/cooler problems of the 1998 Oldsmobile Cutlass

Cruise control set at 65 mph suddenly accelerated to 80 mph on flat ground. When making a left turn the steering wheel locks steering stays stiff and hard to turn most time at low speeds. Noise and whistle comes from steering. Low pitch rattle, clink, squeak noise coming from front of vehicle during low speed. Slow and hard starting,intermittent misfire. Trim over rt. And left rear doors is buckling. Discovered black elec. Tape holding body frame at doors together (paint chip of tape) after using the heater when I turn the engine off there is a bubbling noise which comes from under the front of the car.