Well im trying to look but cant really find anything ...i replaced the hydralic fan thing like 2 years ago and it doesnt seem like that cause when that happened it went straight to over heat ... This is just running hot not going all the way to over heat ...
Well, there are different modes of failure for the hydraulic fan system. Was the whole system replaced, or just some parts of it? Even if it was the whole thing, something could have failed by now even due to a poor install, bad manufacturing quality, or someone mistakenly pouring coolant into the hydraulic (ATF) reservoir. If it has not completely failed, but can't get to higher speed operation, you will get the symptoms that you have.
Leaks from the plastic cooling system parts are very common (with age) and can be very difficult to see. If you know what you are looking for, you can often spot the coolant residue on the parts that the leak sprays onto. You can fill the reservoir and bring the engine up to temperature, then squeeze on one of the radiator hoses while looking for leaks.
The degas bottle is a common source of leaks too. You can't look at it in the car and tell. You have to remove it to see them. Once you've done that, you might as well replace it anyway.
You can replace all the plastic cooling system parts for about $500 in parts cost, and it is wise to do so every five years or 100K miles (whichever comes first). Of course, this interval varies with climate. The hydraulic cooling fan system costs in the thousands to replace completely. Alternately, you could convert to an aftermarket electric cooling fan for much less.
