After having a tune up (which consisted of new plugs, wires, ignition module, ignition coils, thermostat, thermostat housing, fliuds checked and changed, new catalytic converter, new filter pump, the check engine light is still lighting and giving a multiple misfire error code. The car has no pick up from stop to start or pull up a hill. It's exhibiting extremely poor gas mileage. The compressor cuts off the vehicle when the AC is engage and the vehicle is stpped and idled. It is my impression that the misfire is causing the compressor to shut down during AC use. The car feels like it is not running on all 4 cylinders. What a m I overlooking that would cause such a misfire after all of the repairs that have been made thus far?
Jul 6, 2010 at 9:01 PM