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 Water pump is not factory, so it's been replaced by a PO.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.
Still sounds like a water pump if coolant is below the front pulley. Can you pressurize the system and watch for the drip? How often do you have to add to the reservoir? How many miles? Has it ever been overheated? Do you see any steam (white smoke) coming from the exhaust?
The seals behind the pully leak on occasion to on the pump. See if you can rent a pressure tester from a local parts store. They arent that expensive to buy either, the dreaded harbor freight might even carry one that will work for at least your purpose. You could do a block test if you were worried about the head gaskets-but they arent 100%.
I don't drive it very frequently but I usually have to add coolant about once every two or three weeks. I'm usually working on it that often and I check the reservoir. It's not empty but it's usually much lower than were I left it last.
120,000 miles. Never been overheated to my knowledge but it's a new to me vehicle. Had it about two months now. Very rarely do I see any white smoke coming from the exhaust- about as frequently as I saw it from my last WJ with no known issues. I wouldn't even consider it smoke or steam to be honest, more like fragrant vapor.
I could pressurize the system by bringing it up to temp and watching. I'll report back afterwards.
Again, I'm seeing the leaks below the crankshaft pulley, not below the water pump pulley (I realize they are above one another).
Could either of you link me to the timing cover issues?