Question about 1998 Saturn SL

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Looking for thermostat - 1998 Saturn SL

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Should be in the housing at the engine end of the upper radiator hose.
Drain the coolant, remove the upper hose, then look for a couple of bolts that hold the housing onto the engine. Remove those bolts and the housing should come off. There may be a small bypass hose (about one inch diameter, three to six inches long) that is also attached to the housing, if so, remove it also.
Remove the old thermostat and gasket, install the new one, put everything back together and refill the coolant.
You might want to drain all the coolant and replace it, if it is time for new coolant, otherwise save the old coolant and put it back in, unless it looks rusty or otherwise bad.

Coolant should be disposed of properly, do not pour it down a storm drain. Some cities allow it in sanitary sewer, some don't. Call your city's waste services.

Posted on Aug 29, 2010

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1 Answer

Looking for location of thermostst 1995 barina swing


Hi Irene, Follow the hose that's attached to the top of the radiator to the thermostat case and the thermostat is under that case.......CHEERS..

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How do I locate my thermostat?


In most cases, not all, follow the upper radiator hose to the engine. The hose clamp on the end is usually clamped to the thermostat housing (sometimes there's a metal tube, and another rubber hose, then the housing). Drain the coolant through the petcock valve on the radiator,or place a large pan under the vehicle to catch what escapes. It's usually easier to remove the hose from the thermostat housing (Get a flashlight and look inside, but make sure the engine is cooled off). If you can see the thermostat, then remove the housing. (put the thermostat back in the way it came out. Pointy end towards the radiator.) Clean off the old gasket from both surfaces, install the new thermostat, apply the new gasket. Reverse the procedure and top off with coolant.

Search under "images" and type in "thermostat" if you're not sure what it looks like. You'll be looking for the end with the point.

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on Feb 27, 2010 | Chevrolet Blazer Cars & Trucks

1 Answer

Trying to locate the thermostat


If you trace your upper radiator hose to the engine, you will find where the hose connects to your engine with a clamp. Remove this clamp and take this end of the hose and move out of the way. If you look at where the hose went, inside the large hole, you may actually see the thermostat. What you are looking at is the thermostat housing. Remove the thermostat housing and then the thermostat will come out. It may be stuck in place, and you might have to pry it out. I will give you a few pictures to show you what your looking for.
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Hi Will, Look at the engine and follow the top radiator hose to the place where it enters the engine. Where it connects is the thermostat housing. The domed part is what you are looking for, but if you don't know what it is and what it looks like how do you know it needs replacement? Regards John

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Changed water pump,thermostat, top rad. hose. still leaking leaking antifreeze from what looks like below thermostat housing. have noticed super small hose from water pump to engine. looks hard to replace....


That is called the bypass hose. It could be leaking but I'd take a closer look at the thermostat housing. If you replaced only the thermostat and not the housing, the housing may be leaking. It's a common source of coolant leaks.

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It is located on thetop front of the engine. Look for a radiator hose running to the engine block. You will see a housing which the hose connects to. It will look similar to this. Remove the 3 bolts and lift the housing and you will find the thermostat.

Thermostat housing

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Thermostat
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