After replacing all of the above items on this vehicle, there may be only a few answers left. You may have a blown head gasket(s). The engine will overheat no matter what with that. Also look at your hoses, sometimes a hose will be weak only under pressure and collapse as to block the water flow.
remove some of your antifreeze,disconnect top radiator hose,remove 2 bolts holding thermostat cover remove thermostat and scrap sealant off both sides and put more sealant on and install thermostat and tighten 2 bolts and add more antifreeze.
Yesy - if the sealant got into the mechanism of the thermostat Yesy - if the sealant got into the mechanism of the thermostat Yesy - if the sealant got into the mechanism of the thermostat
The cooling system has probably been compromised with radiator solder seal or radiator sealant. After the vehicle is warmed up, use your hand to carefully feel the temperature of the air flow through the radiator. It should be warm all over. If there is a cold spot, then there are plugged portions of the core. Since it only overheats periodically, the cold spot may be relatively small. If you can detect the overheating event while driving, turn the heater on full to cool it down. If this trick works, you definitely do not have sufficient radiator function.
Follow your upper radiator hose to where it connects to your motor. At that point on the motor is where the thermostat is located. It's a simple fix just don't forget the gasket and sealant application process.
Fault with thermostat Heater matrix clogged (maybe with radiator sealant) That's exactly what was wrong with mine! the workshop had to clean all the radiator sealant (copper) and it start working perfectly.
Buy a new car to replace the faulty thermostat Follow the top radiator hose to the motor. The thermostat is in the housing that the hose is attached to and held by two bolts. Use a new gasket and sealant on fitting the housing.
* Thermostat housing not secured tightly * Gasket damaged or not put on properly * No gasket sealant(Permatex, etc) applied to gasket * Radiator hose not secured tightly
Rtv sealant, get a new gasket then cover all mating surfaces of the thermostat housing, and the inlet pipe with rtv sealant. Keep in mind that the sealant will squirt out when you the tighten the bolts so don't put too much on there, just enough that a thin bead of sealant is visible all the way around the thermostat after the bolts have been torqued. Make sure to follow the directions on the package and allow the sealant to cure before you add fluid to the cooling system!
If you follow your upper radiator hose from the radiator to the engine you will see it is connected to a outlet that is bolted to the intake manifold. This is your thermostat housing/coolant outlet. Drain the coolant from your radiator, at least half way. The remove the upper radiator hose. Remove the thermostat housing. Now you can remove the thermostat. Make sure you clean all the old gasket off of the the housing and manifold. Then install the new thermostat, a new gasket )I also recommend using some rtv or gasket sealant to prep the gasket) and the thermostat housing. Then hook your hose back up. remove the radiator cap and refill your radiator. Make sure to use a 50/50 mixture antifreeze.
The thermostat is located under the thermostat housing which is connected to the engine side of the upper radiator hose, and bolts to the intake manifold with 2 bolts. To replace, drain and properly dispose of coolant, remove upper radiator hose, and remove thermostat housing. The thermostat sits in a recess between housing and manifold. Replace with correct thermostat with the correct side facing engine, new gasket and a little sealant.
The Top Radiator Hose, Is Connected To The Radiator Then To The Engine. The Thermostat Is Behine The Thermostat Housing. This Is The Part Where The Top Hose Is Clamped On. Should Be Held On The Engine By Two Bolts. Remove The Hose From Housing, Remove Housing. Get New Thermostat And Gasket & A Small amount Of Silicone Sealant. When You Remove The Thermostat Remember The Direction It Was So You Can Install The New One Correctly +++ Spring Side Toward Engine.
thermostat is stuck With my car, it was Heater matrix clogged with radiator sealant. The workshop cleaned it and it's start working fine!