My Impala (2001, 3.4, 50K) just had two repairs. BlockHeater was leaking coolant. The coolant sensor broken (the second time in two years - too many repairs). Both replaced.
I just got the car back home from the dealer, and took a look at the coolant tank. The Dexcool level is 4-inches above Hot mark! This seems not right ( too high?). The level used to be at Hot, and almost no change for years. I called the dealer, and was told: it's fine as long as it's above Hot mark. Is that right?
Thanks!
John