So, I've been chasing down a coolant issue for the past couple of months. While towing my trailer to the sand, we pull a decent hill just outside of Yuma, AZ and the trailer was fully loaded. Anyway, ECT's were about 200-210 leading up to the hill and the truck was/is running great. Up until that time, no coolant loss and no puking. Pulling the hill about half way up, I get a strong smell of coolant and my ECT's just start climbing like nobody's business. My fan roars to life and temps aren't climbing as quickly. When we crest the hill, my EDGE CS is beeping like crazy (240*F) and the gauge on the dash is pegged...
What did I do???
Things that are important to this story:
1) ARP head studs for 90k miles
2) Bulletproof EGR and Oil coolers and BPD water pump
3) I DID have a custom-made coolant hose from the radiator to the degas bottle (old one was cracked and I had some spare hose in the garage)
4) my degas bottle and cap were original from 2005
I have since replaced the degas bottle, the cap, and the "custom-made" hose and we took the trailer on another trip for MLK weekend. While better, my ECT's were around 230* and there was some minor puking while pulling the same hill. I also was about 1200 lbs lighter since we opted not to take the Rzr with us on that trip.
I've read about getting some "block-chek" to see if there's exhaust in my coolant, but Napa was out and it won't be there until Monday. Anything suggestions for what I can check in the meantime?