I have a 1990 with 174k miles that overheats (needle goes to below H) when I idle (e.g. stop and go traffic) in 90-100 degree weather. And even sometimes when I have to do stop an go driving on the hills of san francisco when the ambient temperature is 55 degrees. Once i start moving (above 20mph) the needle goes back down to the middle. The thermostat has been replaced a few weeks ago, and I checked the fan switch and it is working properly and the fans do come on. I also pinched both the inlet and outlet hoses of the radiator and I can feel that there is water flowing through.
Water pump is fairly old, but it has zero leaks at the moment. Radiator is about 5 years old.
Water pump is fairly old, but it has zero leaks at the moment. Radiator is about 5 years old.
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