Fear overheating the 4.7HO. Losing coolant.
I'm concerned about some unusual temp activity in my Overland. It's never gone above 210* but I'm concerned because it also seems to be losing coolant.
It usually hovers on the tick mark just to the left of the 210* mark when the coolant reservoir is full, whether I'm on the highway or in the city. I'm pretty comfortable with this temp.
However, if I notice the coolant reservoir getting a little empty, the temp will hit 210* on the highway. Once back in city traffic, it will retreat a little bit to halfway between 210* and the tick to the left.
I never see any drips on the ground below the WJ. However, I sometimes notice coolant just below the pulley of the crankshaft. Checked the waterpump weep hole and it's fine. Water pump is not factory, so it's been replaced by a PO. The radiator also seems to be aftermarket. There's no oil in the coolant.
Any ideas? I would sincerely appreciate it.