Statesman

Thanks for all the help! The journey is up and running better than ever! Thanks again!

Update 2- went this morning to do the heater core flush, popped hood and coolant reservoir was empty, popped open radiator cap and no visible coolant. No signs of coolant leaks anywhere in vehicle or under vehicle. I added approx 3/4 gallon of coolant and I now have heat in passenger compartment, still have check engine light for the coolant temperature sensor, but so far all fluid temps seem to be normal. Hope that might be the fix.

Update- I tried to check and see if it is air in the line, found that it bubbles a bit and lost a little bit of volume. I did that till there were no more bubbles. Still no heat in the passenger compartment. Both lines were warm but not so hot I couldn’t touch it. I did a very quick test drive since temps were normal. Coolant temp went to “overheating” around 280; stayed there for about 15-20 seconds then immediately dropped down to >100 and the lighting bolt dash board light and a check engine light. Got it home and it popped up the OBD code P0117. I was able to touch the beauty cover with my hand and I was able to keep my hand there with no problem. Could the wiring harness be shorted for this sensor and would this cause the lack of heat in the cab? The heat worked on the morning when the heater hose blew. i will try the heater core flush tomorrow and see if anything there is off.

I will definitely try that when it cools down, both lines are hot but not so hot that I can’t touch it

So I have run heat full blast for about 30 minutes with no heat in the passenger compartment, any other ideas?

Yes I did

Summer Solatice, I am getting no heat from either front or rear climate control zones

I had a heater hose T junction fail and spray coolant all over. I have replaced the T junction. I had a check engine light with a P0117 code. The coolant temp would go to overheat and then approx 30 seconds later it would read >100. I checked and replaced the Coolant temperature sensor and that cleared up. However driving it again the next day the coolant temp happened again and now the oil temp is reading around 300. And there is no heat going to the passenger compartment at all. Any suggestions on other causes/remedies?