It depends. I Just fixed an overheating problem on my 98 contour. I replaced the thermostat (did not solve the problem). I then tested both thermostats (I put them both in a pan of boiling water and they both worked fine. Quick Check: When you put the heater on in side the car, if it does not blow hot air, most likely the problem is a blown water pump. Mine was in pieces when I looked at it. I replaced the water pump and everything appears to work fine now.
Hi, I had the same problem in my 96 contour with the 2.0. I couldn't find the source of the leak and decided to put a bottle of Block Fix in the engine. You have to follow the directions to the letter for it to work properly, but it should fix your overheating problems as it did mine. I also am running mine without the thermostat and have been for over 1 year now and have had absolutely no more overheating problems. Contours, as mine does, tends to run a little bit hotter than most other vehicles, but its ok. Hope this info helps anybody who is experiencing this problem with their Contour. Mine runs like a champ now!!
To remove a Honeywell thermostat from the wall, first turn off the power to the thermostat at the circuit breaker. Next, carefully remove the cover of the thermostat to access the mounting screws. Use a screwdriver to unscrew the mounting screws and gently pull the thermostat away from the wall. Be sure to disconnect any wires attached to the thermostat before fully removing it from the wall.
I actually haven't heard of any overheating problem. I've had mine for two years sitting next to (about a foot away from) my heating vent and it has never overheated. If your worried there are also external fans you can buy for ~$20.
To safely remove a Honeywell thermostat from the wall, first turn off the power to the thermostat at the circuit breaker. Then, carefully detach the thermostat cover by gently pulling it away from the wall. Next, unscrew the mounting screws that hold the thermostat base to the wall. Finally, disconnect the wires from the terminals on the base and remove the base from the wall. Be sure to label the wires before disconnecting them to make reinstallation easier.
It's in the intake near the throttle body and EGR. Follow the upper radiator hose to it's end away from the radiator. Remove hose from thermostat housing. Stick finger in hold to feel thermostat. Remove 2 bolts if replacing thermostat.
Drain the radiator into a container and keep animals away as it is toxic. Remove the top radiator hose. Remove the water inlet from the engine, and pull the thermostat out. Replace the thermostat, mount the inlet back, and put the top hose back on. Fill the system with coolant.
Overheating is usually a simple problem for a competent mechanic to find and repair. It is usally one of a couple problems: Thermostat, blocked radiator, water pump, temperature "riser" or the timing is waaaay off. The car wouldn't be running very well if it's the timing, so I doubt that one. One way to determine if the problem is the thermostat, remove the thermostat and see if the vehicle runs cold. With the thermostat removed and the engine running, remove the radiator cap and see if the water is flowing rapidly through the radiator. If not, you either have a partially blocked radiator or a damaged waterpump. The temperature "riser" is a mechanism that allows exhaust gasses to flow across a passage through the intake manifold to pre-warm the air being drawn into the engine and to cause quicker "warm-up". If the temperature riser is stuck in the open position, you could need an intake manifold, but that's quite rare. In any case, a good mechanic should be able to find the problem through responsible diagnostic methods. Incompetent mechanics just replace parts until the problem goes away.
This is just another term for weeds that will not go away. They persist and are hard to remove.
# Drain the cooling system # Follow the upper radiator hose to the engine to locate the thermostat # Compress the hose clamp with pliers then slide clamp away from thermostat housing # Remove the bolts and detach the housing cover. # Stuff rag into the engine opening and remove all traces of old gasket.
To perform a Honeywell Home thermostat battery replacement, follow these steps: Turn off the thermostat by setting it to the "off" position. Remove the thermostat from the wall mount by gently pulling it away. Locate the battery compartment on the back of the thermostat. Open the battery compartment and remove the old batteries. Insert new AA batteries into the compartment, making sure to match the positive and negative ends correctly. Close the battery compartment and reattach the thermostat to the wall mount. Turn the thermostat back on and check that it is functioning properly. This process will ensure your Honeywell Home thermostat continues to work efficiently.
You can but it is a bad idea. The thermostat helps the engine to reach it operating temperature and is necessary especially on computer controlled modern engines. It is a Myth that a cool engine is a happy engine. Actually, the hotter an engine is, the more efficient it is. It makes more power, lasts longer, and uses less fuel. Energy can either be used to turn the wheels or dumped as waste heat? Energy will tend to "follow the path of least resistance." If there is a large temperature differential between the combustion gases and the cylinder walls and head, the thermal energy in the gases will flow readily into the cool engine parts. If you reduce that temperature differential by making the engine parts hotter, less energy will flow. A hot cup of coffee in a refrigerator will cool down quickly and will cool to the temperature of the 'fridge -- a big temperature drop. On the kitchen counter, it will cool more slowly and will fall less (only to room temp). In a 200 degree oven, it won't cool at all. Same thing in your engine -- make the cylinder walls hotter and the thermal energy won't flow into them as readily. But that energy still has to go somewhere. Some will stay in the combustion gases and go out the tailpipe, but some will go into turning the wheels. So by trying to keep the engine temp low, you're throwing away perfectly good energy (and money)! A thermostat determines only the MINIMUM operating temperature, not the maximum temp. Under normal conditions, a cooling system in good repair can shed heat faster than the engine can produce it, so you need something to limit the capacity of the cooling system to dump heat. That's the thermostat's job. So you see, a thermostat cannot prevent overheating. It only prevents overcooling. A thermostat can only be the cause of overheating if it is defective and doesn't open as it should. The fix then, if your engine is truly overheating, is obviously not to put in a cooler thermostat or no thermostat, but to fix the fault in the cooling system. A cooler thermostat or no thermostat, is just a band-aid that at best can only temporarily mask the problem. Put the correct thermostat in your engine and if it is overheating, find and fix the problem. The fix is not to remove the thermostat.
Overheating at the Fan Switch merges contacts inside. Replace the switch and the problem will go away.
Follow the upper rad hose to the engine and there will be a housing there with the thernostat in it. Be sure when reinstalling it the spring goes toward the engine. If you install it backward it will overheat in about 3 minutes. If your engine is overheating, generally the thermostat isn't the problem. It is the cooling fans not operating properly. The answer above is actually wrong for the 1993 Lexus ES300. You actually follow the lower hose up to the water pump where there is a housing for the thermostat. To remove this you will first, want to take the front right tire off then the dust guard for it; the thermostat housing should now be viseable. Then you will want to take the plastic windshield washer, and engine coolant reserviors off to make the job easier. Next take the bottom rad. hose off the water pump(where it goes to, from the radiator). then struggle for awhile with taking the three nuts that hold the thermostat housing together (a wobbler bit on a socket wrench can make this job easier). Once these are off you can unplug electric plug on top of the housing, pull that part of the housing off and there the thermostat sits in all of its evasive gloriousness waitng for you to rip it from its mother and throw it away.