1988 b2200 is overheating--we've changed out the lower radiator hose, thermostat, and the upper hose is fine. Why is it overheating? Radiator, heat pump, or water pump?

SOURCE: 1988 mazda b2200 a little hose is leaking from the

This is going to be a thermostat bypass gose, which allows some coolant to bypass the thermostat while the engine is coming up to temperature.

Posted on Jan 09, 2010

SOURCE: 1999 Protege overheating. Changed thermostat,

if your vehicle has electric cooling fans it could be that they are not working,if this is the case when you are on the freeway you don't need the cooling fans you only need them when the vehicle is not moving as there is no air going through the radiator to keep the engine cool......hope this helps......cheers.

Posted on Jul 21, 2011

SOURCE: My Mazda MPV 1995 is

Nornally the hose will warm up but not hot with a circulating system. the therostae could be installed upside down or be bad. You should install a therostate with a asprin holding it open to circulate the coolant till the cooling system is full and the asprim will disolve as it soaks in the coolant. the air will ciculatre to the top and out and the systrem will be full. the stat will work corectly after the asprim is gone. with air around the stast it might not open and therefore overheat.

Posted on May 14, 2011