DenLorsTools.com Summary: Duramax diesels that have misfires at low RPM’s and under a load could have faulty glow plugs. In extreme temperatures like in the middle of the summer or winter these type of problems are more likely to occur. In extreme winter weather is when most of our customers report issues. Usually when trying to change a glow-plug a common problem is breaking. That’s when our phones start ringing and the most orders for our W900-0199’s come in through our two websites (DenLorsTools.com and WiseAutoTools.com). We are providing this tech article to inform our customers about options for removing broken glow plugs without removing the cylinder head.

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