I don't follow. How would a glow plug circuit code cause a low compression reading in that cylinder?

I assume by not igniting the fuel, it's washing down the cylinders, but I'm still learning on these 6.0 engines.

Login to read more.

iATN Members:
Login to read this message and participate
Auto Repair Pros:
Join iATN to read this message and others
Vehicle Owners:
Find a nearby iATN member to repair your vehicle