How to test glow plugs?
hey my truck is throwing a p0380 code... which means a bad glow plug or controller. how is the best way i can test for this? when i fire it up and its cold (like 50* or colder) i have one of my cylinders that has quite a bit higher injector balance rate, but once it warms up, its just like all the others. Is that a sign that possibly my cylinder #1 glow plug is the bad one? or what is the best way to test to see which one(s) need replaced?
2003 2500HD LT, CCSB, LB7, EFI tuned by IdahoRob and installed by GOS Performance, Edge CS Insight, AFE intake, 5" center dump exhaust, 8" MBRP tip, 6" Pro-Comp lift, Fox dual resevoirs shock hoops, 35" Toyo M/T's, 20" chrome Diamo 8's, AMP research electric running boards, 55w 8000K HID highs/lows/fogs, All-on mod, roll up tonneau cover, tinted, whited-out.