Running hot & fans work and no coolant lost but temparture stays at 245 or higher

Depending on the car,, there can be an issue w the coolant level sensor, coolant temp sensor, coolant low or electrical. If its running hot, ck coolant, fans, level etc. Have the ecm scanned for codes to give u a head start. A bad thermostat is a slim poss. too. Scan it first to ck sensors readings & ck fluid levels

the thermostat is staying closed possible or a leak in the system have you checked the lines and water pump or radiator but nothing related to the battery

CHECK COOLANT LEVEL.IF COOLING FAN TURNING ON COOLANT TEMPERATURE SENSOR WORKING.BECAUSE IT CONTROLS AND TURN ON COOLANT FAN AT A SET TEMPERATURE.SOUND LIKE ENGINE RUNNING TOO HOT. HAVE RADIATOR FLUSHED.REPLACE THERMOSTAT. HAVE ENGINE BLOCK FLUSHED.REPLACE RADIATOR PRESSURE CAP ALSO.SEE WHAT HAPPENS.

this sounds like low coolant level,or air in the system, you said the fans work they should cool it down just like the air flowing through it, this tells me the coolant flow is not good until higher rpms,try reving the motor and see if it cools down without movig if it does then its a flow problem maybe tstat not opening all the way or borken, the waterpump empeller rotted,or low coolant,i would also flush the system out if its not clean, ive seen a few of these that use dexcool coolant get pretty nasty from lack of coolant flushes, start by checking the level then a t- stat, hope this helps.

The shroud around the radiator fan mainly assists cooling at lower road speeds - it increases the efficiency of the cooling fan/s.
At higher road speeds the increased airflow due to vehicle speed makes the fan and shroud less important in that circumstance.

Running hot at higher roadspeeds can be caused by either engine mechanical fault (blown headgasket etc) or defective cooling system:-
Check for combustion gas bubbles in coolant reservoir - and ensure engine has no other mechanical running problems.

Check cooling system as follows:-
1) Faulty thermostat,
2) Blocked radiator air flow due obstruction such as grasshoppers or other insects,
3) Blocked radiator core (internal) by sludge/scale etc.
4) Collapsing radiator hose on intake side of waterpump (due to softened hose),
5) Cooling system not properly filled with coolant due air locks in the system - bleed off any air (as manufacturer specifies) during re-fill with coolant and ensure flow to heater core is enabled.

There's a myriad of things to cause this.You need a wiring diagram, a hayne's manual,a test light, & good electrcal knowledge to find the problem.

you need to change the clutch fan and flush the radiator.

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.

ok.. got your problem...

well you better check the fan blower resistor, & the compressor unit.., for any problem..

Regards,
micro

I have had this problem with my 98 aurora and have replaced all the same components. Temp gauge routinely shows 200 on highway (Fine) but in the city in stop and go will get to around 245. I installed a switch to manually turn on the cooling fans by connecting the ground to pin 86 in the relay for the fan(s). Otherwise the fans will not turn on to 245. This fix works but would like to know an actual solution.