Cylinders are the things in the engine that go up and down fired by the combustion of the fuel. One of them is probably not firing quite right and all of the time. Next, is the surging of the engine speed. Places to look are coolant level and air in the cooling system and vacuum leaks. These can be from tubing, devices, and the intake manifold and gasket.
Friday, March 2nd, 2007 AT 11:45 AM