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First drain some of the anti freeze,then follow top radiator hose to thermostat housing,remove hose from housing,unloosen clamp,then remove 2 bolts on housing and pry off,then scrap both ends,remove old gasket and silicone,don't scrape to hard and scar metal.install thermostat with spring toward engine and jiggler up,use thermostat silicone on both surfaces,then install gasket and thermostat cover then tighten screws,install hose,tighten clamp,add antifreeze.check your overflow container and add if low.Usually when you install new thermostat,change anti freeze and radiator cap.
Check all of the vacuum hoses for leaks, you can remove each one and put your finger over the hole to see if vacuum is working. As far as overheating, make sure there is enough anti-freeze in the radiator. Could be several things causing overheating, 1.) the radiator may need to be flushed. 2) The thermostat could be stuck 3) the water pump could be bad.
loosen drain plug at bottom of radiator ,take radiator cap off stick water hose in radiator turn engine on until you see just clear water come out of drain ,turn engine off water hose too ,let all the water drain out tighten plug back up fill with anti freeze you good to go good luck
take the radiator cap off, only when engine is cool , start and turn the hater on high temp. once the engine thermostat has opened fill the radiator to top, replace cap. infront of the radiator in between the grille there is a small plastic reservoir, fill this to the proper level, also PS Make sure you add anti freeze and not just plain water it is best to purchase 50/50 mix as in the winter the plastic reservoir may freeze and crack without anti-freeze and you will be always adding water .
Here's the procedure on how to drain the coolant from your radiator.
1. Prepare what you need. To make the process easier, it would be wise to have everything you need before you begin:
Pair of latex gloves. Screwdriver or wrench. Rags. Radiator Flush. Coolant. Funnel. Radiator cap. Draining pan.
2. Place your car on an elevated ramp. If you don't have one, you can use a lifter to do the job. This is usually stashed in your car's compartment in the back. Positioning your car in an elevated position will make the draining process easier. Keep in mind that though that despite your car being in an elevated position it should still be in a level or flat position. 3. Make very certain that your engine has sufficiently cooled. Not warm to the touch but really, really cool. This is a safety measure to avoid your skin from being burned or scalded. Pressurized contents of the radiator will most likely shoot up in the air if you insist on opening the cap while the engine is still hot. Ergo, not a good idea. 4. Look for the radiator plug. Now's the time to wear your latex gloves because you are ready to begin the draining process. Feel the radiator plug underneath your car. 5. Take the draining pan. Place it directly underneath the radiator plug. 6. Tug the radiator plug loose. You will then see that the coolant is now draining into the pan. Once the coolant is collected in the pan, do not dispose of it as you would dirty water. Anti-freeze is bad for the environment. Keep within environmental laws and collect the liquid refuse in a sealed bottle and turn it over to the proper waste management venue. Keep in mind that Anti-Freeze is harmful to your skin so make sure none of the liquid refuse touches your skin. 7. Observe the consistency of the liquid refuse. If you see metal flakes and other tiny debris, this is a clear indication that your cooling system might need the hand of a professional. 8. Proceed to remove the radiator cap. This allows the air to circulate freely into the radiator tubes and helps speed along the draining process. 9. Check to see if the radiator cap needs replacing. Part of the reason why your radiator needs draining is that sediments and dirt coming from the cap directly mixes in with the Anti-Freeze and water in your radiator. If your radiator cap clearly shows wear, tear, and dry rot, replace it with a new one, pronto. 10. Tighten the radiator plug. After the initial draining process, tighten the radiator plug then fill the radiator with water to shake loose remaining Anti-Freeze in the radiator tubes. 11. Replace the radiator cap. Once you are done filling the radiator with water, replace the radiator cap. 12. Turn on the engine. This allows the remaining Anti-Freeze to be shaken off your radiator. Allow the engine to run for five minutes. 13. Turn the car's engine off and allow it to cool. 14. Repeat the flushing process until the water runs clear. Use the flushing agent this time to make sure your radiator is truly clean. You will know it's over when the water runs clear. 15. Pour in the new coolant. You may have done this many times over but it still always pays to read the instructions of the coolant product before proceeding. The rule of thumb is 50/50 which means 50% distilled water and 50% coolant. 16. Tighten the radiator cap.
1. Make sure the car is cold. Remove the radiator cap (press & turn about 1/4 turn to remove pressure in the system) Once the pressure is bled off you can remove cap and leave it rest on the filler opening.
2. Find the petcock on the radiator (the little valve attached to the radiator. You have to open/turn clockwise to drain the anti-freeze. Drain anti freeze below thermostat housing. About 1/2 to 1 gallon.
3. Have a catch basin for the anti freeze under the car. Remove upper radiator hose from radiator and thermostat housing.
4. Remove thermostat housing from engine block (usually two or three bolts in the thermostat housing). Scrap off ALL old gasket material from engine block. Double check and make sure all gasket material is removed from surface. If not the thermostat housing will leak.
5. Install new gasket with some high temp silicone. Place a couple of dabs on the thermostat housing and gasket (the silicone is used to keep the gasket in place) *MAKE SURE YOU INSTALL the thermostat the same way you took it out. Don't over tighten the thermostat housing bolts.
6. Remove the radiator cap and replace the anti freeze you removed (make sure the anti freeze is clean). Fill the radiator to the top of the filler neck and replace the radiator cap (push and turn the radiator cap to the right- like a pill bottle). Start the car and make sure the temperture guage goes up. The guage pointer should be in the middle of the guage.
7. Check the radiator reservoir for proper anti freeze level. DO NOT OPEN THE RADIATOR CAP WHEN THE CAR IS HOT!!! THE ANTI FREEZE IS HOT AND WILL BURN YOU.
first question is after you changed your hose and refilled while the car was running with the radiator cap locked but loose with the heater on high and set on hot run the car till the thermostat opens shut the car down once it does anti freeze level will drop and air will rise and (extreme caution taken with drain pan below ) start the car use two people run it shut it down let air escape threw cap start again run a couple of minutes shutdown again let cool down take cap off restart car with cap off watch radiator level will somone lightly increases gas peddle refill level to top reinstall cap completely tight then let idle down some vehicles have a small bleeder mounted in the thermostat houseing or in line with the radiator circulation system