I have a code for number 4 glow plug. How long can you drive with glow plug code? I do not live in cold weather area. Not sure I understand what glow plug does exactly. Thanks
Why on earth did anyone hijack a perfectly reasonable thread about a Duramax glow plug with debates about Cummins engines? Get a life. OP, if you never need to start the truck in cold weather it won't matter if you fix it or not. Otherwise, I'd fix it but the truck will likely start just fine in cold weather with only 7 glow plugs working.