Orientation of thermostat in engine block - 1998 Dodge Ram 1500 4WD

The thermostat on the early Kia Sedona with the 3.5-liter engine is located toward the passenger's side of the engine, near the front. On all models, follow the lower radiator hose from the radiator to the engine. The lower hose enters a semi-dome shaped housing that is attached to the engine by three bolts. This is the thermostat housing, and the thermostat is inside.

How to Remove It

Drain the coolant from the radiator to minimize coolant spills. Remove the three nuts from the bolts that secure the thermostat housing. Remove the housing and pull out the old thermostat. Carefully note the thermostat orientation so the new one can be installed in the same orientation.
Credit https://itstillruns.com/location-housing-2005-kia-sedona-7578743.html

replace the temperature sending unit. Its right there by the thermostat. You can get this at any auto parts store. just need an open end wrench to change it. they do go bad(found out the hard way several years back). I hope this helps you

The thermostat is located in front of the engine, between V cylinder banks, for Audi A8 V8 4.2 Quattro Automatic. See pictures below:




Remove the thermostat housing (2 bolts) and the old thermostat. Note the orientation of the old thermostat (vent valve facing UP). Clean both thermostat housing and block surfaces and remove all traces of old gasket material. Install the new thermostat vent valve facing UP.

Please do rate my response. Thanks!

The thermostat is located on the engine in a small housing. The main hose from the radiator supplies the coolant to it. Two bolts attach it to the engine block. Drain the radiator fluid before starting the removal. Then remove the radiator hose which will make it easier to get it out. Remove the two bolts and lift the housing off the block. The thermostat will be quite visible and easy to remove. Remember the orientation so the the new one will be installed properly. Although I don't think it is possible to install it upside down . Use a new gasket with proper gasket cement to install the new one . Attach the hose and refill the radiator when done.

Typically, the thermostat is located under an aluminum fitting where the top radiator hose meets with the engine block or the intake manifold. You need to drain the antifreeze into a container from a valve at the bottom of the radiator so that the level is below the top of the engine block. Save this for reuse or disposal. Then loosen the hose clamp and remove the top hose from where it meets the engine block or manifold. Now, loosen the two or three bolts that hold the aluminum fitting from the engine block or manifold and remove it, revealing the thermostat.

Pay attention to the orientation of the thermostat. Now, clean up the mating surfaces of the fitting and the manifold. Reinstall using a new thermostat orientated the right way, a new gasket and/or silicone sealer, and then the fitting. Attach the hose, refill the radiator, and test for leaks.

The best thing to do is to buy a Haynes or Chilton manual for your vehicle.

Purchase the replacement thermostat and gasket (no they do not come as a set.)
Items needed: socket and ratchet, a tube of liquid gasket, a wire brush, screwdriver for hose clamp

Open the hood, disconnect the Neg terminal of the battery (not the red one)
The radiator accept hot water at the top and feeds it to the water pump on the bottom.
Most thermostats are located on the engine block at the other end of the water hose going to the top of the radiator.
Trace it back, and remove the hose clamp.
Pull the hose clamp back (you do not need to take it off)
Pull the hose off the thermostat hosing neck.
The housing will be held on by 2 or 3 bolts, remove the bolts to remove the housing
BEWARE OF THE ORIENTATION OF THE .THERMOSTAT
The thermostat should come loose.
There will be gasket material stuck to the housing and the engine block, it must be scraped off before installing the new gasket.
Compare old thermostat with new one. Make sure they match.
A good tip is to stress the new thermostat in boiling water to insure it works. Boils some water, and place the thermostat in the water and watch it open. pour out the water, run it under cold water to cool it off.
After using a wire brush to remove the old gasket material,
place liquid gasket along the edge of the engine block opening and place the new gasket on the opening.'
Place the new thermostat in place (IT MUST GO IN ONE WAY)
Place the housing back on the engine block and replace the bolts, (tighten the bolts gradually )
replace the hose on the neck, and replace the clamp and tighten.
remove all tools and reconnect the battery

Good luck and don't forget to vote.

Thermostat is located in front of the engine between V cylinder banks, for Audi 4.2 V8.




Remove the thermostat housing (2 bolts) and the old thermostat. Note the orientation of the old thermostat (vent valve facing UP). Clean both thermostat housing and block surfaces and remove all traces of old gasket material. Install the new thermostat vent valve facing UP.
Please rate my response. Thanks!

I HAVE THE SAME PROBLEM. IT DOES FALL INTO THE BLOCK. DOES IT NEED A GASKET OTHER THAN THE BLACK RUBBER RING THE PARTS SHOP GAVE ME.?

Follow the LOWER radiator hose to a housing behind the distributor and the motor.

There is no need to remove the radiator hose or to even drain the radiator. Wait for the car to cool down completely. Place one or more large collection pans under the car to catch the coolant overflow. Using a 10mm combination wrench, remove two 10mm thermostat cover mounting bolts; and a third 10mm bolt, on the bottom of the cover, that holds a bracket onto the thermostat cover. Tug the thermostat cover away from the housing. As coolant overflows, double-check the placement of your collection pans. Note precise orientation of old thermostat Remove old thermostat with some pliers, put new gasket on new thermostat EXACTLY as old one is. Install new thermostat in EXACTLY the same orientation as the old one was. There are three slots that must line up with two of the gasket dimples, and the tiny bypass valve that is on the thermostat.

The upper radiator hose is connected between the upper radiator and the thermostat housing. Drain the coolant then remove the upper radiator hose from the thermostat housing, replace if necessary. Remove anything blocking access to the two bolts holding the housing to the engine such as the belt cover. Pay attention to the orientation of the thermostat so you install the new one correctly. If the housing is corroded or pitted you have have to replace it or suffer leaks. Push a rag into the engine opening now exposed and clean the contact surface well so it won't leak later. Installation is the reverse of the process.