Engine overheats When a car or truck overheats idling, in town, on the highway, while towing, etc. it is important to find out the reason to prevent engine damage. First, with the engine cold, make sure the radiator is full of coolant; if it is low, fill it and keep the radiator cap off while the engine idles to insure all air is bled out of the system. Check the coolant level daily; if the coolant goes down without visible leaks, it may be a head gasket starting to leak which will also cause the heater to blow cold air due to the lack of available coolant. If the coolant stays full, but the car continues to overheat, the next step is to replace the thermostat in the engine and flush the cooling system if that has not been done over the last few years.Buy a thermostat at a parts store and a PRESTONE flush kit which has excellent directions on the package.After completing these steps and the vehicle still overheats, have your cooling fan sensor/switch ( if equipped)checked out to insure it is coming on. Water pumps are seldom the cause as they are mechanical and will continue to work until their bearings give out. Finally, the radiator itself is often the problem as it tends to build up corrosion internally which prevents it from transfering engine heat to the coolant. Remove it and have it 're-cored'. One of these steps will solve the problem.
Change your thermostat.
Have you checked the computer codes? If so, what do they say?
My 2001 Nissan frontier 3.3 v6 engine is overheating. I changed the thermostat but it still overheats.
Change the thermostat. lol. Simple but the water pump wont work if the thermostat is stuck closed. Good luck. Kyle
Blown head gasket?
check the heater core stopped up radiator
Check the thermostat to see if it was installed correctly. They can get put in backwards.
2000 Pontiac grand am se keeps over heating I changed the water pump, the thermostat, radiator cap, head, and it is still over heating. make sure thermostat is going the right way , spring gose to the motor
I would be thinking it is a head gasket.
you probably need a new radiator and get the engine back flushed while your at it.
maybe its u or da car
Stuck thermostat, clogged radiator.
more than likely you need a new radiator for it, when you install it back flush the engine.
I Had a 1989 Pontiac that idled at 3500 rpm I changed the engine computer and fixed it
Check the heater core; either it or the lines running to it are clogged.
Thermostat is probably stuck in the open position or the system was not bled properly. Bleed the system properly and if it still exhibits the same symptoms, replace the thermostat. You may have purchased a bad new one.
Maybe cooling line is plugged or crimped Maybe cooling tank in radiator is plugged Install auxilliary transmission cooler
There are several things that can cause your 1992 Mitsubishi Eclipse to overheat. A malfunctioning water pump or a blown head gasket should be the next things that are checked.
You have not bleed the air out of the system after you installed the t-stat, causing the heater not to work and the engine to overheat. Use a coolant filler that screws into the radiator and get the air out
Check that the coolant fans are still working, then check out the water pump.
One is the temperature sending unit for the gauge and the other is the sending unit for the computer. The housing is called the water outlet. There is a plastic bypass valve that melts when the car overheats. It is inside the water outlet. If you changed your thermostat and still get no heat you need to replace this water outlet housing. There is no way to fix the plastic bypass. You have to replace the water outlet housing.
thermostat may be sticking and that cause the gauge to show hot, have it checked soon, you could be headed for bigger problems
have you changed the battery in the thermostat?