When I start my car, if you are standing from outside, you can here one metallic ping or knocking noise like a valve taping but only once just before the engine is started. Once the engine is started, the car is drive and feel like normal. Engine idle and rev fine. Does anyone know what would cause that? The car is driven mostly short trip around city during the pass 6 months if this help in diagnostic the problem.
- posted
19 years ago