SOURCE: ENGINE COOLANT FAN NOT CUTTING IN
On my 2001 Focus Zetec 2.0L, the radiator fan only worked with the air conditioning turned on (as in no low speed - engine would overheat while idling or in traffic, but was fine as long as the A/C was on). The fix was to replace the radiator fan resistor assembly located in the fan shroud between the fans.
SOURCE: 1966 Ford Mustang overheating
try to run the water pump without hoses, and add water in the 'in' side, if is powers out the other side, then it's fine. how is your water/coolant mix?
SOURCE: 02 Durango: loud engine/exhaust sound
That noise is probably the air injection system which is part of the emmision system. When it is making that noise, open the hood and determine where it is coming from, note if it is a mechanical sound, etc. The air injection if equiped would sound almost like forced air scaping somewhat like an exhaust leak, but less intense.
SOURCE: coolant leaking replace every three days coolant fan wont stop ru
This link has a diagram showing the location of the relay: http://autorepair.about.com/library/faqs/bl581g.htm
The Pulse Width Modulated (PWM) radiator cooling fan relay is located behind the front bumper fascia below the right head lamp.
SOURCE: Air bubble in coolant.
Air bubble?? I don't think so. When you stop the engine it continues to heat for a few minutes and often "boils over". That is why it has a hose going to the overflow tank. I think what you saw was overflow from that tank. If someone added too much fluid to it then it overflowed and came out of the overflow tube.
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