truck came in custormer says that the glow plugs aren't working. there no codes, when you watch dataloger the glow plug pids show that they come on and stay on for what seams to be the right amount of time, but the light in the IC never comes on. how ever the light dose come on when doing the glow plug test and while doing a bule test.
checked wireing and performed sysmtom diag test which led to pin point test AF. all which led to nothing. called hot line and they were no help they guy there couldn't give me anything new to try other then to watch sensors to make sure that they all read the same ( MAF, EBPA, BARO, ECT, EOT, IAT, and IAT2 ) when done they all read the same temp after a cold soke.
any help is great
thanks