Could be an air lock, could be a stuck thermostat, in the closed position. Changing the thermostat is an inexpensive next step.
Low coolant? Cooling fans not working? Water pump not circulating coolant? Radiator plugged or restricted?
Low coolant?Cooling fan not working?Defective thermostat?Defective radiator cap?
Radiator plugged or restricted? May need to be boiled out Cooling fan not working? water pump not circulating coolant?
check you water (coolant) level, make sure thermostat is working, radiator leaks, sensor problem
Check coolant level Check to make sure cooling fan is working Radiator clogged? Radiator air flow restricted? Defective radiator cap? Water pump? Clutch Fan?
Check coolant level Replace radiator cap Radiator may be clogged Make sure air flow through radiator is not resitricted
have the engine timing checked. if the timing is wrong the engine will overheat, are you loosing coolant?is the fan working, is the water pump working?
You could be leaking coolant, your blower fan might not be working, etc.
your electric radiator fan might not be working,check fan fuses
Low coolant? Cooling fan not working? Radiator restricted or plugged? Water pump not circulating coolant? Defective radiator cap? Low coolant? Cooling fan not working? Radiator restricted or plugged? Water pump not circulating coolant? Defective radiator cap?
Check that the coolant fans are still working, then check out the water pump.
Low coolant? Cooling fan not working? Radiator not adequate for engine load? if it is a manual transmission your placing a good aMOUNT OF WORK ON THE ENGINE TO CLIMB UP AND DOWN on the mountains and not to include the transmission only suggestion is nice and slow or just upgrade your coolant system