Quote:
Originally Posted by blackestate
since it has gotten cold, I change about a glow plug a month. always a different one, is this normal? seems like I am changing them too often. I use the Bosch duotherm.
Thanks
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As long as you haven't replaced one that you recently changed then I'm guessing that each plug is burning out normally, and that they all just happen to be burning out at nearly the same time. If you've burned one out that you just replaced then it's time to investigate further.