A 1970 Ford 750 Truck with a 361 engine is using coolant. My 2009 Silverado has a Engine Hot AC Off light on. Why does my Ford F150 Transmission slip? Why does my Kia Optima Transmission pop out of reverse? Why do my 2006 Dodge Magnum lights go dim and bright and alternator whine? How do I fix my GMC Sierra Seat Heater and a Rear Sliding window defroster? Why does my Jeep Grand Cherokee 1994 have a gas smell?