Did a complete coolant flush about 3 days ago, no problems at all afterwards. Today we warmed it up to go to Spokane, wasn't on near long enough to overheat, but the needle was in the red. But the over flow tank wasn't bubbling, and the cap wasn't all that hot. I checked around on here to see what the problem may be, found out that I didn't have the bleeder open when I filled it after the flush (stupid me). Well I let it ran, and slowly bled the system to where the needle went down.
Drove to Spokane, was all fine and dandy, pulled into the Costco parking lot, then all of a sudden it was pegged again. Still wasn't bubbling. Did what I did at home, added water, bled it again, etc.
Drove to Northtown, was all fine, when I was parked, I looked down.... Pegged.
Came out after like 30 mins, was still 'hot' on the needle, but still wasn't bubbling.
Well this went on all the way home, so I had the heater on full, pulled into a gas station, checked it, and the rad cap was COOL. Not like cold, it was warm, but less than normal operating temperatures. From there til home the needle was almost at peak, but it never moved an inch. At home I checked again, no bubbling, and cap was normal temp.
My only guess since the thermostat is maybe a month old, is that the 18 year old temperature sensor went out.
Sorry for the long write up, just thought it could shed some light on the situation.
Thoughts?
Thank you.
