2010 Edge SEL. Yesterday evening while drving in local traffic, temp gauge went to full "H". Pulled over, popped hood and saw some steam in the general area of the Resevoir. Let cool down, added some water and proceeded home. Happened twice more during that 10 mile drive. This morning started troubleshooting. could not find any leaks or cracks, everything was dry. Thought possibly the cap was failing and venting at less than the 16 PSI. Replaced with a new one I had in stock. Idled for 15 minutes, getting it up to temp (right in the middle). Both radiator hose were warm/hot so the T-stat appears to be working. During the idling neither electric fan came on. Went for a 5 mile drive (35-55 MPH) and returned home. Temp stayed in the middle. Let idle for an additional 20 minutes at home and at the end the temp had gond full "H" again!. Once again the fans never engaged. Am I looking at a failed fan controller??? If so, appears to be as cheap/ cheaper to replace the complete assembly.
Any thoughts are appreciated.
Woody
woodruffcrandall@gmail.com