Thank you guys. Now another question. Truck WILL NOT START after it's sat for more than 6 hours RWGARDLESS of ambient temperature. Could be 100° and if it's been that long she won't kick off unless it's been plugged in. It's got new-ish glow plugs (about 2 years) same with uvch and glow plugs relay tests good. Also did ICP and IPR when I did the gaskets. ***!?