请教97年福特车

[susan2004]

我的车是ford 97 taurus wagan，时速１００公里跑４０公里后，没有热风，不知是什么问题，这是否影响其他布件

[samqyang]

Good sign, at least you have a very efficient cooling system; Just kidding;

Possible reason:
1. temperature regulator(Thermostat) always open;

http://auto.howstuffworks.com/cooling-system8.htm

The thermostat's main job is to allow the engine to heat up quickly, and then to keep the engine at a constant temperature. It does this by regulating the amount of water that goes through the radiator. At low temperatures, the outlet to the radiator is completely blocked -- all of the coolant is recirculated back through the engine.
Once the temperature of the coolant rises to between 180 and 195 F (82 - 91 C), the thermostat starts to open, allowing fluid to flow through the radiator. By the time the coolant reaches 200 to 218 F (93 - 103 C), the thermostat is open all the way.

so if a broken thermostat opens all the time, drive in freak frozen cold with 100KM/H, I am afraid after 40 KM it may end up with what you have described;

if this is the case, it is much better than temperature regulator(Thermostat) always close (usually cause engine overheat even after a short ride)

2. Hot coolant doesn't flow through the Heater Core; But If you only experience above phenomena at what you have described situation(100KM/H, 40KM later), this reason is not applicable. Maybe, years didn't change the coolant, coolant flow either reduced or half blocked could cause this;

作者: susan2004

我的车是ford 97 taurus wagan，时速１００公里跑４０公里后，没有热风，不知是什么问题，这是否影响其他布件