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How do you replace the thermostat in the radiator?

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There is a hose that connects the top of the radiator to the engine. The piece that is connected to the engeine can be removed, usually with 2 bolts. The thermostat is under this piece. Even when the bolts are out, it will probably be hard to remove because it is usually sealed on. You'll have to clean up the surfaces and install a new gasket when you change the thermostat.

Posted on Apr 30, 2015

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How to change thermostat on a 2005 kia sedona


  1. Drain the coolant
  2. The thermostat is located at the end of the top radiator hose. Remove the drain plug from the radiator and flush the coolant into a pan.
  3. Remove the Upper radiator hose
  4. Loosen the clamps that connect the upper radiator hose to the housing and remove the hose.
  5. Remove the thermostat housing
  6. Loosen the thermostat housing mounting bolts. Remove the housing and pull the thermostat from it.
  7. Replace the thermostat
  8. Inspect the new thermostat and install it with a new gasket. Mount the housing and upper radiator hose. Then pour new coolant into the radiator.

Mar 18, 2017 | 2005 Kia Sedona

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Where is the thermostat on a 94 Dodge Shadow 2.5l?


Not sure what engine you have in your car but the upper radiator hose connects to the thermostat housing. To access/replace the thermostat, drain the radiator using the butterfly valve on the bottom of the radiator. Then disconnect the upper radiator hose from the thermostat housing. Last take the 2 bolts off holding the housing in place. (See pic) and replace the thermostat.

Put it all back together and don't forget get to fill the radiator back up with new coolant 50/50 blend.
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Sep 10, 2016 | 1994 Dodge Shadow

1 Answer

Where is the thermostat and how do i test it


follow top radiator hose it will take you to the thermostat housing.to check thermostat when engine is hot both radiator hoses should be hot to touch if the top radiator hose going to thermostat housing is cool not hot when engine is hot. the thermostat stuck closed causing engine to over heat need to replace thermostat and radiator pressure cap.when replacing thermostat make sure to pay attention to position of thermostat so you can install new thermostat in the same position.

Dec 10, 2011 | 1994 Volvo 940

1 Answer

Need to change thermostat


Locate the Thermostat
  • Find the hoses that leave your radiator.
  • Trace the top hose back to your engine.
  • Locate the thermostat housing attached at the end of that hose. Verify the location in your owner's manual, as some manufacturers house the thermostat at the bottom of the radiator rather than the top. This makes removal far more difficult.

Replace the Thermostat Locate the clamp that secures the thermostat to the radiator hose. Unscrew this clamp and gently remove it from the engine. You might see radiator fluid or coolant come out of the hose at this stage, in which case you can catch it in a drip pan and dispose of it later on. Unscrew the bolts that secure the thermostat to its housing. Wipe out the inside of the hose with a rag to ensure it is free of debris. If anything falls into your radiator, it can result in expensive repairs. Replace the gasket. Install the new engine thermostat. Make sure the power unit faces the engine. Replace the bolts to secure the thermostat housing to the radiator hose. Reconnect the hose and tighten the screws in the clamp

May 18, 2011 | 1996 Ford F150 Regular Cab

1 Answer

How to find the thermostat and replace it ?


Locate the Thermostat
  • Find the hoses that leave your radiator.

  • Trace the top hose back to your engine.

  • Locate the thermostat housing attached at the end of that hose. Verify the location in your owner's manual, as some manufacturers house the thermostat at the bottom of the radiator rather than the top. This makes removal far more difficult.


Replace the Thermostat Locate the clamp that secures the thermostat to the radiator hose. Unscrew this clamp and gently remove it from the engine. You might see radiator fluid or coolant come out of the hose at this stage, in which case you can catch it in a drip pan and dispose of it later on. Unscrew the bolts that secure the thermostat to its housing. Wipe out the inside of the hose with a rag to ensure it is free of debris. If anything falls into your radiator, it can result in expensive repairs. Replace the gasket. Install the new engine thermostat. Make sure the power unit faces the engine. Replace the bolts to secure the thermostat housing to the radiator hose. Reconnect the hose and tighten the screws in the clamp

May 18, 2011 | 2000 Toyota Corolla

2 Answers

Where is the thermostat located


Under the hood find radiator at front of the car on either left or right side of radiator is a fat hose that will be connected to the radiator. Follow that hose to the engine and it connects to the thermostat cover that is connected to the top of the engine with two bolts holding it on. Remove both bolts, Remove thermostat cover replace with new thermostat, Scrap off old gasket on both connecting sides place in new gasket (using a gasket sealer with the gasket wouldn't hurt to) replace both bolts only SNUG tight if using sealer let sit for a hour or two. your done!!

Jan 25, 2011 | 1998 Mercury Sable

2 Answers

How to replace thermostat on 1997 dodge stratus 2.4 litre engine


Follow the top radator hose to where it connects to the motor. On my 97 stratus you follow the top hose which leads to piece where the radiator cap turns on, take out the 2 bolts and underneath is your thermostat

drain radiator first before you begin anti freeze is poison to animals you will also wont to get a thermostat houseing gasket replace the old one use 50/50 anti freeze put new thermostat in the same direction as the old one bleed air out of radiator when complete

Dec 14, 2010 | 1997 Dodge Stratus

1 Answer

Changing a thermastat on a 2003 Caravan


the 1993 caravan had two engines offered a 2.5L 4cylinder and a 3.3L v6........on the 2.5L the thermostat is located on the front of the cylinder head were the top radiator hose attach's.
remove the top hose were it attach's to the thermostat housing and the remove the thermostat housing and lift out the thermostat and replace with the new one making sure the spring on the thermostat is facing the engine replace the thermostat housing and top radiator hose and remove the bleeder screw from the top of the thermostat housing and fill radiator with new antifreeze. when you see antifreeze coming out the bleeder hole replace the bleeder screw.

The 3.3L v6 also has the thermostat at the front of the cylinder head were the top radiator hose attach's the thermostat housing the procher is the same except for bleeding the radiator, to bleed the cooling system remove the coolant temp. sensor it is located just below the thermostat housing and fill radiator with new antifreeze until the antifreeze starts coming out the coolent tempt sensor hole them reinstall the sensor and top of radiator.........GOOD LUCK

Dec 09, 2010 | 2003 Dodge Caravan

2 Answers

IM REPLACING THE RADIATOR,WATER PUMP AND THERMOSTAT,THE WHOLE COOLING SYSEM,SHOULD I DO THE RADIATOR FIRST OR THE WATER PUMP?


If you are doing them all at the same time, do the water pump first. I like to do the toughest part first and then move on the the easier parts. Then the thermostat and then the radiator. Once you drain the radiator most of the engine coolant will come out making the waterpump easier to clean up. If you are doing them in different day's, alway's replace the waterpump and thermostat in pairs. If you can do the radiator at the same time, I would suggest that. Sometimes when thermostats get out of fluid, they sometimes will lock up and cause and overheat. Then you are replacing all the fluid and thermostat on a hot engine.

Oct 10, 2009 | 1999 GMC Yukon

1 Answer

How difficult to replace 1995 Toyota Corolla radiator/thermostat


You can replace the radiator yourself, but why do you need to? The thermostat is on the engine. Follow the large hose that goes to the engine block....not the water pump. The thermostat is under that or sits on the top of the engine....looking for a pic for you!

Mar 14, 2009 | 2005 Toyota Corolla

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