There are five stable isotopes of nickel: Ni-58, Ni-60, Ni-61, Ni-62, and Ni-64. Properties: The melting point of nickel is 1453Â°C, boiling point is 2732Â°C, specific gravity is 8.902 (25Â°C), with a valence of 0, 1, 2, or 3. Nickel is a silvery white metal that takes a high polish. Nickel is hard, ductile, malleable, and ferromagnetic. It is a fair conductor of heat and electricity. Nickel is a member of the iron-cobalt group of metals (transition elements). Exposure to nickel metal and soluble compounds should not exceed 1 mg/M 3 (8 hour time weighted average for a 40 hour week).
Quick Answer. Symptoms of a bad ignition module are sudden engine stalling or power loss while the car is in motion, engine stuttering accompanied by a smell of gasoline and an inability to restart the engine following a stall. Decreased gas mileage is also a sign of a compromised ignition module.
Symptoms of failed ignition coils somewhat depend on the vehicle. If a vehicle has a single coil or a coil pack feeding the entire engine, then the engine will likely not run at all when a ignition coil fails. This typically happens abruptly.