After a complete engine rebuild, I discovered that the repair shop neglected to change the oxygen sensors located on the exhaust manifolds. The HG's were blown prior to the rebuild and I know the sensors need to be replaced. If these sensors are bad, can this cause the engine to run hotter than normal at highway speed? Is it possible that the engine is running too lean?
I have noticed engine knock when the engine is hot and I seem to be burning more gas than usual. Ideas?
I have noticed engine knock when the engine is hot and I seem to be burning more gas than usual. Ideas?