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glow plugs

1K views 5 replies 3 participants last post by  Alan G 
#1 ·
Can anyone tell me how long glow plugs should stay on, my 525d stays on after engine is started for ages ,i know this because i have a broken one in the head and put a new glow plug in connector cap ,but how long is it supposed to stay on?, as it happens i have 2 broken in the head and car starts up great, would it be adviseable to drill them out im scared of metal getting into barrels? or is it head off job to be on safe side anyone drilled them out?. john.
 
#5 ·
yes read that but what im saying is,all 6 glow plugs work now but, stay live and glowing well after the engine is running, so do they stay like that until the engine temp reaches normal? if that is so its a lot of wasted power. or is there a fault?
 
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