I hear a knocking sound coming from the engine and its bit bad for speeds above 50 mph. I recently replaced spark plugs with recommended aftermarket ones and did an oil change. However, this noise goes away (or settle down) when I steer the wheel to right (even a very little to the right) and its consistent. Please tell me where do I begin. Thanks
If the noise can only be reproduced when driving and not by revving the engine in park, it is most likely not in the engine. Since the noise can be changed when steering, looking at things attached to the front wheels would be the best place to start looking. Here is an excellent article to get you started.