Do the glow plugs even get used in summer?
Duno about duramax but my TDi would sense ambient temp and not use the gp's in weather this warm, they were easy to replace just like changing spark plugs.


If one plug is gone chances are the rest are close behind but people on the TDI forum would phuck with changing one plug based on scanner codes and end up going crazy

I ordered all the stuff for cheap, changed all the plugs, the harness, put contact enhancer on all contacts... problem eliminated for good period