thermostat is more than likely stuck shut from the overheat. Have to be changed.
Assuming it did not overheat before you replaced thermostat and water pump you may have installed the thermostat backwards. It is also possible the cooling system wasn't refilled properly and was air bound.
water pump or cooling fans or thermostat low coolant
A 1991 Subaru Impreza might overheat because of a leaking cooling system or because of a damaged thermostat. You might also have a damaged or leaking radiator or a cooling fan that is not working.
Type your answer here... IF WE CHANGED ONLY COOLING FAN THEN IT WILL BE OVERHEAT BECAUSE WE DON'T CHANGE OR FLUSHING OF RADIATOR. WE CAN REMOVE THERMOSTAT VALVE ALSO MAY BE HOSE PIPE WILL BE BEND
Yes, an engine can overheat without a thermostat. The thermostat regulates the flow of coolant to maintain optimal operating temperature; without it, the coolant may not circulate properly, leading to inefficient cooling. Additionally, the engine may not reach its ideal temperature quickly, which can also cause overheating under certain conditions. Overall, the absence of a thermostat disrupts the cooling system's balance, increasing the risk of overheating.
Blocked radiator, low on coolant, stuck thermostat, air in cooling system
You could have a stuck thermostat or your cooling fans aren't working.
Stuck thermostat, clogged radiator.
To determine if the thermostat or the cooling fan is causing your 1993 Dodge Spirit to overheat, start by checking the thermostat. Remove it and place it in boiling water to see if it opens; if it doesn’t, it needs replacing. Next, check the cooling fan by running the engine and observing if the fan activates when the engine reaches a certain temperature. If the fan doesn’t turn on, it may be faulty or there could be an issue with the relay or wiring.
Possible reasons for overheating: Low or out of coolant Clog in cooling system Thermostat failure Cooling fan not operating water pump failure
There are several things that can cause your cooling system to overheat. The next thing you should check is the thermostat. A blown head gasket can also cause the system to overheat.
The thermostat in a 1996 VW Golf is located by following the lower large hose of the radiator. Before removing the thermostat be sure to drain the cooling system.