Vehicle & Technical > Discovery

Glow Plugs

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simdeb:
Is there any way to test them ?

Got problems starting when cold , but ok once started cable to plugs ok and voltage getting to them ?

simon

petergalileo:
you can connect a glow plug up to the battery and it should glow red hot within a few seconds.

mount it in a vice though and let it cool for several minutes before touching it.

When you remove them check for damage, if they are damaged even slightly replace them.

petergalileo:
Just another thought, I had starting problems on the last diesel I had, wanst a disco but it turned out to be a pin [ed - prod with a sharp implement] hole in the fuel supply line.  Only affected starting.  I put a clear fuel filter in the fuel line, like the filter used in old ford sierras, its an inline filter so you can move it around the system and look for air bubbles.

simdeb:
thanks know what else to check!! :lol:  :lol:

Wanderer:
Some 300's need a slight timing change to the pump. Not sure if it can happen to a 200tdi. Paul might know. He did his 300tdi.

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