Question about 1997 Nissan Sentra

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1997 Nissin Sentra - Where is the thermostat located? Is access to it from the top or bottom of the vehicle. Also, must the coolant be drained before thermostat replacement? Thanks.

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  • Nissan Master
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Top rad hose next to the engine, and yes you might want to drain the coolant before changing the
t-stat, there are 3 - 10mm bolts that hold it on, if you strip them you can get a longer bolt and install a nut to fix it. It takes a while to fill that system and for the fans to kick on, make sure you turn the heater on high when refilling with coolant.

Posted on Dec 30, 2010

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How do you change a thermostat on a 1997 Caddilac deville w/ Northstar engine? Also, Where is it??? Please help!


Check this diagram location...

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Fig. Thermostat installation - 4.6L Engine

4.6L Engine

  1. Drain the coolant to a level below the thermostat housing.
  2. On some vehicles, access is easier if the front-end beauty panel and the air cleaner are removed.
  3. Remove the 2 bolts securing the thermostat housing to the intake manifold.
  4. Remove the thermostat housing.
  5. Remove the thermostat and O-ring from the housing.
To install:
  1. Install the thermostat and new O-ring to the housing.
  2. Install the thermostat housing to the intake manifold. Tighten the thermostat housing bolts to 18 ft. lbs. (25 Nm).
  3. Refill the cooling system using a 50/50 mixture of water and ethylene glycol antifreeze.
  4. Install the air cleaner and beauty panel, if removed.
  5. Start the engine and check for coolant leaks. Allow the engine to come to normal operating temperature. Recheck for coolant leaks.
Hope this helps.

Sep 02, 2011 | 1997 Cadillac DeVille

1 Answer

How do you remove a thermostat from a buick park avenue


  1. Drain the cooling system.
  2. Remove the engine cover.
  3. Disconnect the Inlet hose from the housing.
  4. Remove the thermostat housing bolts (A), thermostat housing (B), and the Thermostat (D).
  5. Clean the gasket mating surfaces and the housing and intake port.
To Install:
  1. Install the Thermostat (D).
  2. Install the thermostat housing (B) with a new gasket (C) and torque the bolts (A) to 15 ft-lb (20 Nm).
  3. Connect the inlet hose.
  4. Install the engine cover.
  5. Refill the cooling system.


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To Drain:
NOTE: Draining the cooling system with the pressure cap installed will siphon the coolant from the overflow tank.
  1. Raise and support the vehicle.
  2. Open the radiator drain **** and drain the coolant into a drain pan.
  3. Empty and wash out the coolant reservoir with soap and water.
  4. Inspect the coolant if discolored flush the system before refilling.
To Fill:
CAUTION
Follow the procedure below to insure the coolant is at the proper level. A coolant level that is too high or too low could cause engine damage.
  1. Close the radiator drain **** and lower the vehicle.
  2. Slowly fill the cooling system with a 50/50 mixture of DEX-COOL antifreeze and clean drinkable water.
  3. Install the coolant pressure cap and start the engine.
  4. Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature than let the engine idle for 3 minutes.
  5. Turn the engine off and let the engine cool off.
  6. Top off the coolant and check the concentration of the coolant using the (J 26568) coolant and battery tester.

Mar 21, 2011 | 1997 Buick Park Avenue

1 Answer

Where is the thermostat on my 2002 audi a 4 located


Hello,

The thermostat of a 2002 audi a4 is located between the engine and the radiator. The thermostat is small and crucial. It is meant for the vehicles cooling system. It moderates the flow of coolant into the engine by releasing it when the engine need it the most. The thermostat is designed to open its valve once the temperature of the engine reaches about 200 degrees F. Its purpose is to keep the engine running at a consistent temperature, allowing your Audi A4 to operate at peak performance.

If You are planning on replacing the thermostat, here are the steps to follow to replace them, try to get these instruments (Car ramps, 4-by-4 inch wood block, Metric socket wrench set, Socket extension, Pliers, Drain pan, Empty plastic container, Black marker, Towel, Emery cloth, Gasket seal) then follow the steps below:
  1. Raise the front end of your Audi A4 by driving up on a set of car ramps and placing your vehicle in park.
  2. Place a 4-by-4 inch wood block behind one of the rear tires to keep the vehicle from rolling backward.
  3. Use a socket wrench to remove the pan that covers the bottom of the engine.
  4. Locate the red plastic cap that was behind the pan that you just removed. This red cap is your radiator drain plug. Remove the radiator cap from the top of the radiator and then place a drain pan under the red drain plug and turn it with a pair of pliers to allow the coolant to drain completely from the radiator. Once the coolant has completely drained, turn the drain plug to close it off. Be careful when using the pliers on the drain plug that you do not snap the plug off.
  5. Slide under the vehicle and locate the thermostat housing that is sitting just above the oil pan drain plug. Pour the drained coolant from the drain pan into an empty plastic container and label the container so that you do not reuse the expelled coolant. Place the empty drain pan under the thermostat housing before you attempt to remove the housing to allow the coolant from the engine to drain into it.
  6. Remove the 10 mm bolts that hold the thermostat housing on the engine block with a metric socket wrench. Do not lay directly underneath the thermostat housing as the coolant from the engine will begin to drain as soon as you loosen the bolts on the housing. Keep a towel or cloth with you to clean off any spilled coolant .
  7. Remove the thermostat housing from the engine and lift the old thermostat out of the housing. Use a piece of emery cloth to clean the face of the thermostat housing and the engine block where the housing is mounted from any remaining gasket material or debris.
  8. Spread a layer of gasket seal around the face of the thermostat housing and place the new thermostat on the housing, with the thermostat spring facing out from the housing. Position the housing back on the engine block and secure it to the block with the bolts.
  9. Replace the pan the sits across the bottom of the engine of your Audi A4 and then refill the radiator with coolant and put the radiator cap back on the radiator. Remove the wood block from the back tire of your vehicle. Turn the engine on and drive the Audi A4 off of the car ramps. Allow the engine to run at idle for a few minutes to verify that the thermostat is working properly and then shut the engine off.
Hope this helped. Thank You for using FixYa!!!

Jan 27, 2011 | 2004 Audi A4

1 Answer

Location of thermostat on 06 sentra 1.8s


its right below the air box. you will see the bottom radiator hose hokked up to it. the cover/housing is held by 3 bolts. whole bunch of coolant will come out when you take off the housing, so hae a drain pan ready right under the transmission. good luck.

Nov 14, 2010 | 2005 Nissan Sentra

1 Answer

Thermostat replacement 1994 nisan sentra 1.6 eng how to remove and replave


JUST DRAIN COOLANT LEVEL BELOW THE THERMOSTAT. CATCH COOLANT IN A DRAIN PAN UNDER RADIATOR.THEN REMOVE RADIATOR HOSE FROM THERMOSTAT HOUSING ON THE CYLINDER BLOCK.THEN REMOVE THERMOSTAT HOUSING AND THERMOSTAT.CLEAN THERMOSTAT HOUSING SURFACE AND THERMOSTAT HOUSING SEALING SURFACE ON CYLINDER HEAD.INSTALL NEW THERMOSTAT IN PLACE,MAKE SURE THERMOSTAT AIR BLEED HOLE FACING LEFT SIDE UPWARD ON THE ENGINE.SOME THERMOSTAT HAS TOP STAMPED ON IT.MEANING MUST BE FACING UP.WHEN THERMOSTAT IN PLACE.TAKE NEW THERMOSTAT GASKET.PUT SEALER ON BOTH SIDES OF GASKET.THEN.PUT GASKET ON THERMOSTAT HOUSING.THEN PUT HOUSING IN PLACE TORQUE HOUSING BOLTS 16 - 20 FT LBS.WAIT 1 HOUR UNTIL GASKET SEALER CURE.THEN FILL UP COOLANT SYSTEM.BLEED COOLANT SYSTEM AND CHECK FOR LEAKS.

Sep 17, 2010 | 1994 Nissan Sentra 4-Door

2 Answers

I want to remove the dexcool antifreeze from my s-10,how do i do this


There should be a drain on one of the tanks of the radiator. Most don't work right so it's usually easier to just remove the lower hose. Don't do it hot though as it comes out really fast.
Then, after it's drained, close it up, start the engine, turn the heater on high heat and fill. Leave it running till it reaches operating temp and the thermostat opens...coolant level will drop. At that point, top it off, fill the recovery bottle to the full mark and you're done!
If you happen not to be working on level ground, make sure the engine is pointing uphill so no air gets trapped.

Apr 27, 2010 | 1997 Chevrolet S-10 Pickup

1 Answer

Car is overheating. How do i replace the thermostat so the coolant can circulate through the bottom of the system.


The thermostat is located on the drivers bottom front corner of the motor. You will see what looks like a conventional thermostat housing bolted in with two bolts.Starting with a cold engine drain the coolant. Loosen the clamp for the lower radiator hose where it connects to the thermostat housing and pull the hose off. Remove the two bolts and you will find the thermostat under it. Make note of the orientation of the original thermostat. Install the new thermostat with a new gasket in the same orientation as the original and bolt on the housing. Reinstall the hose. Be sure to close the radiator drain and refill with the correct coolant/water mix.

Jan 12, 2010 | 1997 Subaru Legacy

1 Answer

How do i replace the thermostat on a 99 nissan sentra


Follow the top hose from the radiator back to the engine block to see the thermostat housing. Open it up to replace the thermostat inside. Make sure to drain the radiator first before remove the hoses. Put in the new Coolant.

Dec 24, 2009 | 1999 Nissan Sentra

2 Answers

Location of coolant drain **** on 1997, ram,5.9, 1500


Have a look up under frame (rad support) for a hole in there where drain is accessible. Sometimes on side of rad, at bottom as well, or on engine side down low, on passenger side usually. They are really getting to be a pain to access now, and that's why I keep a good size drain pan around, and simply loosen off clamp on lower rad hose if it's easier to access, and slowly remove it to drain rad. When done, slide it back on good, tighten clamp, and double check it for leaks after vehicle runs for a while. Good Luck.
P.S. Don't forget, any spillage on driveway or wherever of antifreeze should be cleaned up in case of an animal/pet in area, as it can be very inviting to them, and it can cause them a slow painful death if ingested.

Dec 05, 2009 | 1997 Dodge Ram 1500 Club Cab

2 Answers

I need to change out the thermostat on 1997 Nissan Sentra.


The thermostat is located near the back left of the engine if you are looking in with your hood open. It is inconveniently located next to several other hoses and wires. Your best bet is a racheting screwdriver with a 10mm socket. It is accessible from the top side. If you replace the thermostat and you experience over heating, it is most likely just air trapped in the housing. Run your car and warm it up, let it cool down, open radiator cap and add coolant. Repeat a few times and that should purge the air.

Jan 17, 2009 | 1997 Nissan Sentra

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