Most likely cause is a faulty coolant temp gauge located on top of the front of the water pump, toward the front of the engine, or the water pump is bad. The fan is attached to the water pump and the drive belt rides on the water pump pulley. The reason the engine returns to normal idle when moving is that air is circulating the engine, and the coolant, and the sensor detects that the engine operating range has been reached. to fix, drain the coolant, remove the temp sensor, replace, and refill the radiator. If thsi does not solve the problem, its the water pump. Tim
You are probably low on coolant, check the overflow bottle next time you stop, but judging by the high temp you are missing quite a bit of coolant.
well there no need to diagnose overheating, 260 is overheating big time. U have to find out why its overheating. Could be low coolant, a stuck thermostat, a clogged dirty coolant system, bad fan clutch, or if u have electric fan make sure they are coming on. if the fans don't come on, could be a fuse, the fan motor, a temp sensor, or a relay. With the ac on the fans should be running no matter what if it has electric fans. As soon as the ac come on the fans should turn on and stay running. if there not something is wrong.
260 ºC = 500 ºF
Thermostat problem, head gasket, coolant leak, cooling fans on rad not coming on or coming on at the wrong time/temp.AnswerThermostat problem, head gasket, coolant leak, cooling fans on rad not coming on or coming on at the wrong time/temp. AnswerI don't know what is causeing the vehicle to over heat. However, I can tell you there is a trick to releave the pressure on certain valves so you can get to were your going.. or if your stuck in traffic..Put your heater on full blast and roll down the windows that will hold you over until you get her in the shop.
Probably not. It could be the cooling fans, or the water pump. Does the temp go down to normal when you are going down the hwy? If so, its probably the fans. If the temp gets to 260 the fans should kick on, if not, I would look at the fan circuit, fan module, and fan assembly.
220 degrease on big cars and v8 engines 240 and over you are running hot smaller v6 and v4s cars may run 180 to220 anything over that and your running hot on average the temp of engine coolant gets from 220-260 before its lubircating and heat dissipating property's start to break down
the highest recorded temperature on the moon (surface) was 260° Fahrenheit, or 127° Celsius.
Type of PE Temp (F) LDPE 230 HPDE 260 UHMW 280
The 4.6 L - SOHC - V8 in a 2002 Mustang is 260 horsepower
Depending on the weather I would say 175-185. 195-205 is Hot. 210 is boiling. 220 and it is evaporating. 230-240 will be damaging your engine. 250-260 will be breaking your engine. I've had alot of heater core and radiator problems with my car so I've been there.
get a new temperature sensor.