OK, so I've researched every topic there is on replacing the water pump on my 2007 scion Tc and can't find anything ... Here's my situation ... I bought this car and was told she hit a deer at 30 mph...but was fixed. Driving the vehicle in town is no problem but the air is blowing warm... However when I get out on the highway about 70mph it cools off quite nicely... OK so I come into another town and start to notice my car is overheating .. Only when driving at 40-50 mph And the air starts blowing hot again...but when I get back out on highway 70mph it cools back off and air is cool again. So I replaced the thermostat ...same thing , I replaced the radiator still acting up Im thinking its the water pump .. Auto zone has them for $54 I'm going to try a DiY... Any tips suggestions or moral support? Any and all is greatly appreciated thanks in advance!