6speedsd
New member
We actually have a shop 15 minutes away that carries it.
With the recent electrical issues, definitely check FICM (with a meter). Batts, alternators, and FICMs can die together.
You are going to have to run a power balance to find injectors with stiction. The buzz test isn't of much use.
You can test the GPCM and the glow plugs all individually. Disconnect the 4 pin connector at the valve cover. Measure each glow plug resistance to battery ground, the glow plugs should fall between .1 and 2 ohms. Then measure the engine harness resistance to the GPCM, those should fall between 0 and 1 ohms.
Just sitting here thinking, consider this...
Truck doesn't start any better when plugged in. Starts the same either way. If it was a glow plug related issue, wouldn't it start better plugged in?
I know this is all pointless until I check voltages, but just trying to get some other things in mind to check in case ficm reads good.
You are correct.. IMO, you don't have the correct voltage either comming from the battery's or the FICM..
Yea that's my thinking. Like I said we have the battery issue solved. I'm checking ficm voltages tomorrow to see if there is an issue there. I know that isn't the original ficm because it was replaced maybe 5-6 years ago (dude charged him $700 for a new one!), but with that bad battery, I'm scared he ruined this one.