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STOP what you are doing before you damage something!! Whatever you are trying to remove is not the water pump. Neither the sparkplugs nor the "timing belt" cover needs to come off. Remove the fan belt. Remove the fan (the nut is LH thread- means it turns left to tighten and right to loosen). You will need a large wrench (32mm) availible at sears.The water pump is directly behind the fan and is held in by 4 10mm bolts.
It appears that you have a viscous fan hub driving the fan or should I say failing to drive the fan. The fix is to replace it . If you have electric fans then there is a problem in the temp sensor system and the fans are not cutting in on temperature The problem you state is indicated by the fact that when driving there is sufficient air through the radiator to remove the heat from the radiator ..but when driving slow there is no air flow because the fan is not drawing air through the radiator and the temperature climbs until over heat is reached . Typical indicators of fan speed problem is overheating at stop sign/lights, slow heavy traffic driving, slow up hill driving, and rapid cool down as road speed is increased , the faster the speed the cooler the motor
It appears that you have a viscous fan hub. Fan is mounted to a hub on the end of the water pump IT will have a big aluminium centre to which the fan is bolted. The hub is designed to start to lock up when the radiator gets hot and they were introduced to save fuel. However they will fail and when they do you will get an over heat situation at the lights. IT is best to replace them with a new item After market will be about 1/3 price of a genuine item and will be made by the same manufacturer. I have added extra silicone fluid to my Mazda fans but it is a time consuming job. However there may be shops that can do the job in your area. So yes it is a sign of a problem fan as when the engine is hot you would have difficulty holding it but not when it is cold.
sounds like ur water pump has gone did it make a squeeling noise this was ur bearings going , but even if it was not ur pump u have lost water and with out water in engine and radiator ur fans will not work as they work of water temp and as u have no water in rad no fans the reason not pressure is no water temp gauge works as it getting heat from ur block the pulley not turning sounds like u have scized up ur engine only now need a replacement or re build but check out first fill up with water and see were water is leaking from
All you have is one or two fans? Have you checked or replaced the thermostat? The thermostat opens when the engine gets to operating temp, and allows the water in the radiator to flow through engine and the water pump pumps the water out of the engine back through the radiator to cool before it goes back through again. I check the lower radiator hose to see if it get hot like the top hose or you could take the lower hose of the pump to see if it is pumping. I would start with a radiator flush and do this a couple times, prestone makes a flush and Im sure someone else does. do that then change your thermostat, make sure when you put the new one in it goes in spring side down..
The main reason for the over heating of the audi tt is to do with the water pump. The propeller within the first type of water pumps is made of plastic. This was to prevent corrosion, however was never designed to last longer than 5 years. What you need to do is purchase the new style water pump. These new style water pumps have been designed with a metallic propellor which should resolve the overheating. Let us know how you get on.
Hello senior, whenever the coolant system is opened up there's a possibility you could get air in your system, only way to get it out is by using the bleeder valve, check the coolant temperature sensor it may not be working properly, it tell's the cooling fan when to kick on and off, the condition of the drive belt is also another factor, along with the tensioner and tensioner pulley. it sounds like a problem with the water pump, the cooling fan, or air in your cooling system, to get a good inspection of the water pump fin's you have to remove it.