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1st how do you check glow plugs, any pics on the site ,if so please send link, i am trying to get the connector off the glow plug relay but cant figure it out, how to do it, please help
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You have to release the tabs on the female connector,then pull it apart.Use a 12 volt trouble light & check the small bar that runs accross the tips of the heaters.You need a special volt meter to check the relays.they have to be taken apart to do it & 12 volt run to them at different points on the connections,if you dont understand it dont try it,you'll smoke the realys.take it to someone that knows what there doing.
 

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what code are you throwing? I just changed glow plug 3 p0673. I figured since it was just one glow plug that wasn't working i would just buy a new one.
 
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