Quote Originally Posted by Esnie.com View Post
mga sir paano ba malalaman na busted na ang glow plug?
You can individually measure the glow plug's resistance....., or apply 12 volts from a car battery. It should glow soon enough. Fast heat plugs will glow in 2 to 3 seconds. Old style plugs take longer to heat up. Don't apply voltage too long as this will damage the plug.