Question about 1997 Chevrolet Astro

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I need to change the thermostat in my 1997 astro van do I have to drain the radiator to do that n what does the housing unit look like I remove air filter

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You shouldnt have to drain the system.you do need for to be cool down.follow the top hose to the goose neck.it should look like a half dome with 2 maybe 3 bolts around the edges.

Posted on Oct 07, 2010

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Engine Diagrams


Hello. Here a non-photo diagram. Hope this helps!!!

The thermostat is located on the side of the water pump, the water pump is located just above the a/c compressor, the thermostat is fed coolant from the radiators lower radiator hose.
Thermostat :
1. drain coolant and tighten drain plug ( easier method : remove radiator cap, get big drain pan, place drain pan under lower radiator hose to radiator connection, remove clamp, slowly remove hose, allow coolant to drain into pan, now is a good time to remove radiator hose and clamp from thermostat housing )
2. remove thermostat cover / cap ( easiest to get at this when front of car is supported by jack stands and right hand side lower cover is removed ).
3. thermostat cap is held on by 3 bolts / remove thermostat.

You will notice that the thermostat's air bleed hole is pointing up and lines up with notch in water pump housing,,

ATTENTION :failure to install new thermostat in the correct location will cause engine to overheat.

1. install new thermostat to water pump, make sure air bleed hole lines up with notch, install and tighten bolts, install a new lower radiator hose, fill cooling system.

thermostat # 17670-77E00
lower radiator hose #17854-65G20
hose clamp #09401-36403
upper radiator hose # 17852-65G20

Suzuki factory manual

Oct 21, 2013 | Cars & Trucks

1 Answer

Change thermostat on 2004 chevy impala?


first you need drain engine coolant down below thermostat. what engine type 3.8 or 3.4 need to know.the 3.8 engine thermostat housing on top intake follow top radiator hose to thermostat housing.the 3.4 engine you have to remove air filter housing with air inlet duct with mass air flow sensor.you have to remove throttle body with coolant hoses.go to auto parts store buy new throttle body hoses old ones will be hard to remove might have to cut two small hoses also buy new throttle body gasket also. before you can remove throttle body unit you have to remove accelerator cable and downshift cable from bracket bolted to throttle body.once throttle body remove then you can remove thermostat housing bolt remove replace thermostat.

Nov 11, 2011 | 2004 Chevrolet Impala

1 Answer

Van is overheating


most likley you need to replace the thermostat. but check to make sure your fan is comming on to cool the motor down first check all fuses. under dash and under the hood.


  • 1

    Place a catch pan under the drain valve of your Venture radiator.

  • 2

    Open the radiator valve and drain at least 2 quarts of coolant. Then close the drain valve.

  • 3

    Remove the air cleaner and duct assembly from the top of the engine to gain access to thev thermostat housing. Use a screwdriver and a ratchet and socket if necessary.

  • 4

    Disconnect the crossover exhaust pipe using a ratchet, ratchet extension and socket.

  • 5

    Follow the upper radiator hose towards the engine to locate the thermostat housing.

  • 6

    Disconnect the upper radiator hose from the thermostat housing. Use a pair of rib joint pliers to loosen the clamp, and then slip it off the thermostat housing towards the radiator. Other Venture models may use a worm clamp type, which you can remove using a standard screwdriver or ratchet and socket.

  • 7

    Remove the upper radiator hose from the thermostat housing by carefully twisting and pulling the hose off the fitting.

  • 8

    Unscrew the two mounting bolts from the thermostat housing using a ratchet, ratchet extension and socket. Detach the thermostat housing from the engine.

  • 9

    Note the exact position of the thermostat so that you install the new one the same way. Then remove the thermostat and gasket.

  • Install the New Thermostat
  • 1

    Apply a light coat of room temperature vulcanizing (RTV) sealer to the threads of the thermostat housing bolts.

  • 2

    Set the new thermostat and new gasket in place.

  • 3

    Set the thermostat housing in place and start the two mounting bolts by hand. Then tighten the bolts using the ratchet, ratchet extension and socket.

  • 4

    Connect the upper radiator hose to the thermostat housing.

  • 5

    Tighten the upper radiator clamp over the thermostat housing using the rib joint pliers, standard screwdriver or ratchet and socket.

  • 6

    Connect the crossover exhaust pipe using the ratchet, ratchet extension and socket.

  • 7

    Install the air cleaner and duct assembly using the screwdriver or ratchet and socket.

  • 8

    Add coolant to the radiator using a 50/50 mixture of distilled water and anti-freeze.

  • 9

    Start the engine and check the upper radiator hose and thermostat housing for leaks

  • Dec 08, 2010 | 2000 Chevrolet Venture

    1 Answer

    Were is my thermostat in my 1997 eagle vision


    REMOVAL & INSTALLATION
    1. Disconnect negative battery cable. CAUTION
      Do not remove the radiator pressure cap with the cooling system hot and under pressure. Serious burns from hot, pressurized coolant can result.
    2. Allow cooling system to cool completely. Place a pan under the radiator drain, located at the lower right side of the radiator. Open the valve to drain the cooling system to a level just below the thermostat. Do NOT drain the cooling system completely, unless the coolant is being changed. Close the valve.
    3. Loosen the radiator hose clamp from the upper radiator hose at the thermostat housing and if necessary disconnect the hose from the housing. Fig. 1: Loosen the radiator hose clamp from the upper radiator hose at the thermostat housing 88173p06.jpg
      Fig. 2: If necessary, separate the upper hose from the thermostat housing (it is not required) 88173p11.jpg

    4. Remove the thermostat bolts and housing. Fig. 3: Loosen the thermostat housing bolt with the proper size socket 88173p07.jpg

    5. Remove the thermostat and discard the gasket. Thoroughly clean both gasket sealing surfaces. Fig. 4: Separate the housing to access the thermostat 88173p08.jpg
      Fig. 5: Lift the thermostat out . . . 88173p09.jpg
      Fig. 6: . . . then clean the mating area 88173p10.jpg
      To install:
    6. Clean the thermostat housing bolts well. On any engine, bolts that thread into the water jacket are subject to rust and corrosion. A bolt with rust or debris in the threads can easily strip out the threads in an aluminum manifold requiring a time-consuming thread repair operation. Clean the bolts well and lightly lubricate before installation.
    7. Install the thermostat into the recess in the intake manifold. Place a new gasket, moistened with water, on the water inlet mating surface on the intake manifold.
    8. Install the thermostat housing over the gasket and thermostat and tighten the mounting bolts to 21 ft. lbs. (28 Nm) on the 3.3L engine and 105 inch lbs. (12 Nm) on the 3.5L engine.
    9. Connect the upper radiator hose to the thermostat housing and tighten the radiator hose clamp.
    10. Refill and bleed the cooling system.
    prev.gif next.gif

    Aug 19, 2010 | 1997 Eagle Vision

    1 Answer

    Where is the thermostat on my 2002 dodge 1500 van and how do you change it?


    hi this can be found by locating the top hose on the radiator, follow it back to the engine/motor, there you will find a housing inside the housing you should find the thermostat..you need to drain the cooling system Remove the radiator hose clamp and radiator hose at the thermostat housing, Remove the thermostat housing mounting bolts, remove thermostat housing ,then you can remove the thermostat it self thermostat...hope this helps happy 4th to you

    Jul 03, 2010 | 1999 Dodge Ram

    2 Answers

    Need to replace thermostat and temperature sensor to pass emmission test. easy to do ???- budget!!!


    its fairly easy (don't do this while hot) temp is around 180-200* you want to place a bucket or drain pan under the the front where the drain chock is located open so that you drain about 1-1.5 gal's out of the radiator (it would be good to have some cat litter handy and clean up right away so that shoud you have a dog his/she is not poisened follow the top radiator hose to the thermostat and remove the 2 bolts on each side "if lucky you have the rubber gasket to seal the housing back up. replace the thermo with new unit (some aftermarket parts companys give you a cheeze rubber gasket its best to reuse the old rubber gasket in this case) locate temp sensor unscrew after disconecting wire reconect wire after installing sensor refill antifreeze with fresh 50/50 mix start car or van let run with presser cap off so that the system can bleed out the air out of the system then top off coolent after engine has reached operating tempature continue checking with cap off. turn hearter control to max hot add fluid to overflow tank replace cap to the hot mark drive couple times around the block and check tank let car/van sit for a few minute's to cool down check tank should read full or needs fluid add as needed check for leakswhen done clean drive

    Jan 20, 2010 | 2003 Chevrolet Astro

    1 Answer

    How do you replace a thermostat on 97 astro


    Hi:
    Your thermostat is located under the thermostat housing, which is located where the upper radiator hose attaches to the engine. First you must drain the coolant out of your radiator, then disconnect the hose from the engine. Remove the bolts from the thermostat housing, and gently tap the housing to break it free. Remove the housing and the thermostat. Carefully clean the flat surfaces on the housing and the engine, before reassembly. You will need a new gasket too. Fill the engine up with the proper coolant mixture, then start the car and check for leaks!

    Dec 15, 2009 | 1997 Chevrolet Astro

    1 Answer

    How to locate the thermostat for a 1997 acura 2.2


    Removal & Installation
    1. Disconnect the negative battery cable.
    2. Drain the cooling system into a suitable container.
    3. Locate the thermostat housing by following the upper radiator hose to the engine.
    4. Loosen the hose clamps then carefully detach the hose from the fitting.
    If the hose is stuck, carefully use a pick to break the seal between the radiator hose and the housing. If the hose is deteriorated, replace it with a new one.
    1. Disconnect any sensors or switches that may interfere with the removal of the thermostat from the housing.
    f163710.gif
    Remove the thermostat housing bolts

    120abfd.gif
    Pull the water outlet neck away from the housing

    d9be9b2.gif
    Note the installed position of the thermostat, then remove it

    1. Unfasten the retainers, then remove the thermostat housing.
    Some coolant may leak out of the housing as the seal is broken.
    1. Remove the thermostat carefully noting how it's installed.
    2. Clean the mating surfaces of the thermostat housing.
    Many thermostat housing's are made out of aluminum alloy. A plastic scraper is very effective and will not harm such metals.
    To install

    1c8dd82.gif

    A new gasket must be installed before installation

    c732e7b.gif
    Install the thermostat with the air bleed valve at the top

    1. Install the new thermostat and gasket.
    Install the thermostat with the jiggle pin facing up. This acts as an air bleed and must be at the top of the thermostat to operate properly.
    1. Install the thermostat housing, then tighten the bolts securely.
    2. Connect the radiator hose and tighten the hose clamps securely.
    3. Install any remaining components, then refill the cooling system.
    4. Start and run the engine until it reaches normal operating temperature while checking for leaks.

    Nov 03, 2009 | 1997 Acura CL

    1 Answer

    1997 Town & Country Radiator Thermostat


    REMOVAL & INSTALLATION
    2.4L Engine
    See Figure 1
    1. Disconnect the negative battery cable.
    2. Place a large drain pan under the radiator drain plug. Allow the cooling system to sufficiently cool down before opening the drain plug to avoid personal injury. Drain the coolant to below the thermostat level.
    3. Disconnect the upper radiator hose at the thermostat housing.
    4. Remove the thermostat housing bolts and coolant outlet connector of the thermostat housing.
    5. Remove the thermostat assembly from the vehicle and discard. Discard the old thermostat gasket.
    0900c1528003c458.jpgFig. 1: Thermostat installation-2.4L engineTo install:
    1. Clean all gasket mating surfaces.
    2. Install the new thermostat in the correct position. If equipped, align the air bleed valve on top of thermostat to the vent recess in the water box (engine side) of the thermostat housing.
    3. Dip the new new gasket in clean water and install on the water box surface of the thermostat housing.
    4. Install the thermostat housing over the gasket and thermostat, making sure the thermostat is in correct position.
    5. Install the thermostat housing bolts and torque to 20 ft. lbs. (28 Nm).
    6. Reconnect the radiator hose. Tighten the radiator hose clamp.
    7. Connect the negative battery cable.
    8. Fill and bleed the engine cooling system.
    9. Pressure test for leaks.
    3.0L, 3.3L and 3.8L Engines
    See Figures 2, 3, 4, 5, 6 and 7
    1. Disconnect the negative battery cable.
    2. Place a drain pan under the radiator drain and drain the cooling system to just below the thermostat level. Close the drain.
    3. Remove the upper radiator hose from the thermostat housing, then remove the housing.
    4. Remove the thermostat and discard the gasket.
    0900c1528003c459.jpgFig. 2: Thermostat installation detail-3.0L engine 0900c1528003c45a.jpgFig. 3: Thermostat installation detail-3.3L and 3.8L enginesTo install:
    1. Clean the housing mating surfaces.
    2. Dip the new gasket in clean water and place it on the water box surface.
    3. Center the thermostat on the gasket, in the water box.
    0900c1528003c45b.jpgFig. 4: Remove the radiator hose from the waterneck by loosening the hose clamp ...
    1. Make certain the bolt threads are clean. Threaded bolt holes exposed to coolant are subject to corrosion and should be cleaned with a small wire brush or correct size thread-cutting tap. Install the housing, making sure the thermostat is still in the recess, and tighten the retaining bolts to 105 inch lbs. (12 Nm) for 3.0L engine or to 21 ft. lbs. (28 Nm) for 3.3L and 3.8L engines. Reconnect the upper radiator hose and tighten the hose clamp.
    2. Connect the negative battery cable.
    3. Fill and bleed the engine cooling system with a clean 50/50 mixture of ethylene glycol antifreeze and water.
    0900c1528003c45c.jpgFig. 5: Lift the waterneck housing off of the lower intake manifold, then ... 0900c1528003c45d.jpgFig. 6: ... remove the thermostat out of its mounting flange
    1. Make sure the radiator is full and start the vehicle.
    CAUTION Do not remove the radiator cap once the vehicle is warm. Coolant is under pressure and may cause scalding or personal injury.
    1. Run the vehicle until the thermostat opens. Check the coolant level in the overflow tank and fill if necessary.
    2. Pressure test for leaks.
    0900c1528003c45e.jpgFig. 7: Make sure to clean the waterneck before installation

    Nov 27, 2008 | 1997 Chrysler Town & Country

    1 Answer

    Need to change thermostat in 01' Chevy Astro Van


    It is located where the big hose comming out of your radiator connects to top of engine. Remove hose from engine your thermostat is undernieth

    Nov 15, 2008 | 2001 Chevrolet Astro

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