Question about 2000 Chevrolet Impala

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Thermostat what *** i need to remove to get to the thermostat housing?

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  • russpebbles Aug 30, 2008

    trying to change thermostat need advice as to what to remove to get to it

  • russpebbles Aug 30, 2008

    im working on a 3400 engine and need to know if i have to take off the throttle body and linkages to get to thermostat housing or is there an easier way?

  • Anonymous Feb 01, 2009

    I have the same porblem trying to get out the therostat on the 3400

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Generally it's easy access if you remove the air filter hose assembly and cover out of the way. if you have a 3800 series engine the throttle linkage bracket should also be loosened and moved aside this should allow you to remove the upper radiator hose and thermostat cover.

Posted on Aug 30, 2008

  • Ronald Mueller
    Ronald Mueller Aug 31, 2008

    yes you have to remove the throttle body and i believe only the front half of body cuz i think you have a 2 piece and not need remove whole thing

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Changing thermostat v6


drain coolant until its below the thermostat.then remove two thermostat housing bolts.remove thermostat housing and thermostat.make note position of thermostat before removing it.then carefully clean all old gasket material from thermostat housing and cylinder block you can buy can gasket remover at any auto parts stores.buy new thermostat gasket.if you have the paper type you need to buy RTV SILICONE to help seal gasket if you have rubber type gasket you dont need RTV SILICONE.make sure both surfaces are clean.then install new thermostat and new gasket.if you have paper type gasket apply thin 1/16 coat RTV SILICONE both sides thermostat gasket.then install gasket to thermostat housing then install housing to cylinder block first make sure new thermostat in place before installing thermostat housing. let RTV silicone sit up about hour before adding coolant.IF THERMOSTAT HAS THE O RING SEAL DONT NEED RTV SILICONE AND THE PAPER GASKET.

Jul 01, 2013 | Mercury Sable Cars & Trucks

1 Answer

Hello jonah! i need to replace a thermostat on my 2004 chevy colorado, 3.5 litre engine can you tell me where it is located on my engine?


Check this procedure for Canyon, Colorado 2004-2005 - Removal & Installation
  1. Drain the cooling system.
  2. Raise and support the vehicle only high enough to access the thermostat housing through the wheelhouse.
  3. Remove the left wheelhouse liner.
  4. Remove the radiator inlet hose from the thermostat housing.
  5. Remove the thermostat housing bolts.
  6. Remove the thermostat housing from the engine block.
  7. Clean and inspect the thermostat housing.
  8. Clean and inspect the sealing surface of the engine block.
To install:
  1. Position the thermostat housing to the engine block.
  2. Install the thermostat housing bolts and tighten to 89 inch lbs. (10 Nm).
  3. Connect the radiator inlet hose to the thermostat housing.
  4. Install the left wheelhouse liner.
  5. Lower the vehicle.
  6. Fill the cooling system.
  7. Inspect all sealing surfaces for leaks after starting the engine.
  1. Drain the cooling system.
  2. Raise and support the vehicle only high enough to access the thermostat housing through the wheelhouse.
  3. Remove the left wheelhouse liner.
  4. Position the hose clamp pliers to the clamp to remove the radiator inlet hose from the thermostat housing.
  5. Remove the thermostat housing bolts.
  6. Remove the thermostat housing from the engine block.
  7. Clean and inspect the thermostat housing.
  8. Clean and inspect the sealing surface of the engine block.
To install:
  1. Position the thermostat housing to the engine block.
  2. Install the thermostat housing bolts and tighten to 89 inch lbs. (10 Nm).
  3. Connect the radiator inlet hose to the thermostat housing.
  4. Install the left wheelhouse liner.
  5. Lower the vehicle.
  6. Fill the cooling system.
  7. Inspect all sealing surfaces for leaks after starting the engine.
Hope helps (remember to rating this answer).

Oct 06, 2011 | 2004 Chevrolet Colorado

2 Answers

Where is thermostat on my 2005 chevy classic


Thermostat Removal & Installation 2.2L Engine 2004-2005 To Remove:
  1. Drain the cooling system. chevy_cav_02-04_tstat.gif
  2. Remove the thermostat housing-to-water pump feed pipe bolts. chevy_cav_02-04_feedpipe.gif
  3. Remove the water pump feed pipe from the thermostat housing .
  4. Remove the thermostat from the housing.
To Install:
  1. Install the thermostat on the housing.
  2. Install the water pump feed pipe on the thermostat housing with the mounting bolts. Tighten 89 in-lb (10 Nm).
  3. Fill the cooling system.
2006-2007 To Remove:
  1. Drain the cooling system.
  2. Disconnect the radiator outlet hose from the surge tank and thermostat housing cover. Thermostat & cover gm-03-39-3601.gif
  3. Remove the mounting bolts and remove the thermostat housing cover.
  4. Remove the thermostat from the housing. Discard the O-ring.
To Install:
  1. Using a new O-ring, install the thermostat on the housing.
  2. Install the thermostat housing cover with the mounting bolts. Tighten 89 in-lb (10 Nm).
  3. Connect the radiator outlet hose to the surge tank and thermostat housing cover.
  4. Fill the cooling system.
3.5L Engine (LZ4) W/ Variable Valve Timing & 3.9L Engine To Remove:
  1. Drain the cooling system.
  2. Remove the air cleaner outlet duct.
  3. Disconnect the radiator outlet hose from the thermostat housing. Thermostat 3.9L gm-03-00-3054.gif
  4. Remove the mounting bolt/stud and remove the thermostat housing.
  5. Remove the thermostat from the engine.
  6. Clean the sealing surfaces.
To Install:
  1. Using a new gasket, install the thermostat on the engine.
  2. Install the thermostat housing with the mounting bolts. Tighten 89 in-lb (10 Nm).
  3. Connect the radiator outlet hose to the thermostat housing.
  4. Install the air cleaner outlet duct.
  5. Fill the cooling system.
  6. Check the cooling system for leaks.
3.5L Engine (LX9) W/O Variable Valve Timing To Remove:
  1. Drain the coolant.
  2. Disconnect the radiator hose from the thermostat housing. Thermostat 3.5L gm_mv_ven_tstat.gif
  3. Remove the mounting bolt/stud and remove the thermostat housing.
  4. Remove the housing gasket.
  5. Remove the thermostat.
  6. Clean the mating surfaces.
To Install:
  1. Install the thermostat on the engine.
  2. Install the thermostat housing and gasket with the mounting bolts. Tighten 18 ft-lb (25 Nm).
  3. Connect the radiator hose to the thermostat housing.
  4. Fill the cooling system.
  5. Check the cooling system for leaks.

Jan 29, 2011 | 2005 Chevrolet Malibu

1 Answer

Need to change engine thermostat on 2002 saturn vue. would like diagrams on how to and what to look for.


2.2L Engine To Remove:
  1. Drain the cooling system.
  2. Remove the exhaust manifold heat shield.
  3. Remove or disconnect the following:
  4. Thermostat housing to water pump feed pipe chevy_cav_02-04_tstat.gif
  5. Remove the thermostat cover bolts from the thermostat housing.
  6. Remove and discard the thermostat housing O-ring.
  7. Thermostat assembly saturn-03-22-4279.gif
  8. Twist the water feed pipe while pulling to remove it from the water pump. Remove the water pipe from the water pump assembly.
  9. Remove and discard the seals from the water pipe.
  10. Remove the inner thermostat sleeve.
  11. Remove the thermostat assembly.
To Install:
  1. Install the thermostat cartridge into the thermostat housing while aligning the cartridge tangs up with the thermostat housing bolt holes. This will assure the inner sleeve can be completely installed.
  2. Align and insert the inner sleeve notch into the thermostat housing. If the inner sleeve notch is not properly positioned, the sleeve will not completely seat into the housing.
  3. The water feed pipe seals can be slightly lubricated with silicone gel to aid during installation. Install a new O-ring on the water pipe.
  4. Position the water pipe into the water pump assembly.
  5. Seat the water feed O-ring by pushing and twisting toward the water pump. Take care not to tear or damage the O-ring.
  6. Install the thermostat housing cover to the water pipe. The water feed pipe has a locating tab to assure proper alignment.
  7. Install a new thermostat housing cover seal into the recess groove.
  8. Position the thermostat housing cover into position.
  9. Install the thermostat housing cover bolts and tighten bolts to (89 in-lb 10 Nm).
  10. Install the exhaust manifold heat shield.
  11. Fill the cooling system.

Dec 24, 2010 | 2002 Saturn VUE

2 Answers

Where is the thermostat on a 2002 Chev. Cavalier with a 2.2 DOHC located?


Please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat . These are generic instructions. Specific instructions from autozone.com for your car are pasted below. If you get stuck, please get back to me.

  1. If equipped with an automatic transmission, remove the exhaust manifold.
  2. Drain the cooling system.
  3. Remove the thermostat housing to water pump feed pipe bolts.
Remove the thermostat housing to water pump feed pipe.


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Fig. Remove the thermostat



  • Remove the thermostat.


  • To install:

    1. Install the thermostat.
    Install the thermostat housing to water pump feed pipe.
    jturcotte_258.gif

    Fig. Install the thermostat housing to water pump feed pipe


    1. Install the thermostat housing to water pump feed pipe bolt and tighten the thermostat housing to water pump feed pipe bolt to 89 lb inches (10 Nm).
    2. If equipped with an automatic transmission, install the exhaust manifold.
    3. Fill the cooling system.

    Nov 23, 2010 | 2002 Chevrolet Cavalier Coupe

    1 Answer

    Need to find where the thermastat is on a 2003 cadi


    It is in the rear of the engine by the firewall and the intake manifold will need to be removed to gain access t it.

    Engine Coolant Thermostat Replacement (LA3, LY9) Removal Procedure
    1. Remove the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement .

    2. 790876.gif
      tif.gif
    3. Complete the following in order to remove the thermostat from the thermostat housing:
    4. 2.1. Depress the ears on both sides of the thermostat. 2.2. Rotate the thermostat until it clears the retaining feature of the housing. 2.3. Release the pressure from the thermostat. 2.4. Pull the thermostat from the thermostat housing.
    Installation Procedure

      790876.gif
      tif.gif
    1. Complete the following in order to Install the thermostat into the thermostat housing:
    2. 1.1. Align the thermostat pin to the thermostat housing orifice. 1.2. Depress the ears on both sides of the thermostat. 1.3. Rotate the thermostat until it aligns with the retaining feature of the housing. 1.4. Release the pressure from the thermostat.
    3. Install the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement .

    Jul 10, 2010 | 2003 Cadillac CTS

    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

    1 Answer

    Where is the thermostat


    Please choose the correct steps for the size of engine that you have:

    4.5L & 4.9L Engines
    1. Drain the coolant to a level below the thermostat housing.
    2. It may be necessary to remove the upper air filter assembly on some models.
    3. Remove the 2 bolts securing the upper thermostat housing to the lower housing.
    4. Remove the upper thermostat housing.
    5. Remove the thermostat and O-ring from the lower housing.

    280c20b.gif
    Thermostat installation—4.5L and 4.9L engines

    To install:
    1. Install the thermostat and a new O-ring to the lower housing.
    2. Install the upper thermostat housing to the lower housing. Tighten the thermostat housing bolts to 20 ft. lbs. (27 Nm).
    3. Refill the cooling system using a 50/50 mixture of water and ethylene glycol antifreeze.
    4. Start the engine and check for coolant leaks. Allow the engine to come to normal operating temperature. Recheck for coolant leaks.

    4.6L Engines
    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.

    57a3857.gif
    Thermostat installation—4.6L Engine


    3b692a6.gif
    Loosen the upper radiator hose clamp at the thermostat housing


    d0a7ab0.gif
    Remove the upper radiator hose clamp from the thermostat housing


    d22f120.gif
    Remove the thermostat housing retaining bolts and . . .





    d497806.gif
    . . . remove the thermostat housing from the engine


    c2d4b5e.gif
    Separate the thermostat 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.

    May 23, 2010 | 1996 Cadillac DeVille

    1 Answer

    I need to know where the location of the thermostat is on a 1999 chrysler 300m so i can replace


    The 2.7L engine lower radiator hose, connects to the thermostat housing.

    To Remove:
    1.Disconnect the Negative battery cable.
    (Engine COLD!)
    1. Drain cooling system.
    2. Remove radiator lower hose from thermostat housing.
    3. Remove nuts from heater tube flange studs.
    4. Loosen starter bolt at heater tube bracket.
    5. Pull heater tube out of thermostat housing and position out of the way.
    6. Remove bolt and two studs.
    7. Remove thermostat housing, O-ring and thermostat.
    8. Remove thermostat housing bolts.
    To install:
    A.Clean gasket sealing surfaces.
    B.Install thermostat with the bleed valve located at the 12 o'clock position, between tabs on seal.
    1. Install thermostat and seal into thermostat housing .
    2. If removed, install two studs.
    3. Install thermostat, thermostat housing and O-ring and bolt. Tighten attaching bolts to 105 inch lbs.(12 Nm).
    4. Lubricate new heater return tube O-ring with coolant.
    5. Position heater return tube flange over two studs. Install nuts.
    6. Tighten retaining nuts to 53 inch lbs.(6 Nm).
    7. Tighten starter bolt to 40 ft. lbs. (54.3 Nm).
    8. Connect the lower radiator hose to the thermostat housing. Install hose clamps.
    9. Refill cooling system.
    10. Inspect for leaks.
    11. Connect negative cable.
    3.2 and 3.5L engines:
    Disconnect the battery cable. (Again engine COLD)
    1. Drain cooling system.
    2. Raise vehicle on hoist.
    3. Disconnect electrical connectors from engine oil and power steering pressure switches.
    4. Disconnect radiator and heater hoses from thermostat housing.
    5. Remove thermostat housing bolts.
    6. Remove housing, thermostat, and gasket.
    The OEM thermostat is staked in place at the factory. To ensure proper seating of replacement thermostat, carefully remove the bulged metal from the thermostat housing, using a suitable hand held grinder. It is not necessary to restake the replacement thermostat, into the thermostat housing.

    To Install:
    1. Position gasket on thermostat and housing.
    2. Install thermostat housing, gasket and mounting bolts onto block. Tighten attaching bolts to 105 inch lbs. (12 Nm).
    3. Install radiator hose.
    4. Install bypass hose.
    5. Connect electrical connectors from engine oil and power steering pressure switches.
    6. Connect negative cable.
    7. Fill cooling system.
    8. Inspect for leaks.
    9. Lower vehicle on hoist.
    From AutoZone Repair Guides

    I feel this way, I can give you an accurate description, and have taken into account your safety.

    May 12, 2009 | 1999 Chrysler 300M

    1 Answer

    NEED LOCATION OF THERMOSTAT IN 1991 CADILLAC SEVILLE


    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.
    0900c15280090476.jpgThermostat installation—4.6L Engine 0900c15280090477.jpgLoosen the upper radiator hose clamp at the thermostat housing 0900c15280090478.jpgRemove the upper radiator hose clamp from the thermostat housing 0900c15280090479.jpgRemove the thermostat housing retaining bolts and . . . 0900c1528009047a.jpg. . . remove the thermostat housing from the engine 0900c1528009047b.jpgSeparate the thermostat 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.

    Nov 27, 2008 | 1992 Cadillac DeVille

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