Question about 2001 Daewoo Lanos

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In need of serious help, thermostat problems.

Just recently the thermostat housing on my 2001 lanos just blew spitting coolant all over my engine. Does anyone know why this happen, and if so how do i fix something like this?

Thank you,

Will ave

Posted by on

  • dennis brown Dec 11, 2008 problem is that the thermostat is built into the housing so what u guys suggest i do

  • bikerskum69 Apr 14, 2009

    Why does the Daewoo's have such a problem overheating, the housing that keeps blowing apart are hard to find and are really expensive. The last one I put on (about and hour ago) only last for one trip to the store and back.



3 Answers

Same here. Mine blew at about 45k (strange, my daewoo did its own coolant flush...) I just went to a local suzuki/toyota/daewoo dealer my cousin works at, got the parts for like 30 bucks and my uncle put them in (mechanic). I think it's just that the housing that comes with it sucks. Just grab the parts from your local dealer and you could probably do it, or just ask a mechanic.

Posted on Aug 21, 2008

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Well The same thing happened to me and I have a Answer!
It was was just getting to hot and the thermostat housing is Crappy mine blew as well.. so I went to a Toyota dealer and bought the part and put it in my self.... EASY Stuff

Posted on Jul 14, 2008

  • charleskmoor Apr 02, 2011

    I just replaced the thermostat housing for the second time in my 2001 Daewoo Lanos. I learned that the radiator fans are not coming on. This can cause overheating, especially in heavy start and stop traffic situations. My problem is that I cannot locate the temperature sensor on the engine that switches the fans on at running temperature. I bypassed the relays and caused the fans to run so I know the fan motors are in good shape. Can anyone tell me where the sensor or temperature switch is located on this engine?


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I recently had a similar problem. my car overheated and two hoses going to the engine completely torn apart and also a pipe under the engine was cracked so the antifreeze would not stay in. real huge problem. garage i went to had a hard time finding parts and had my car for three days to later find out when i thought the problem was fixed was not because they never put new hoses on they only put temporary ones on without telling me. now i am having issues with the check engine light coming on. seems to be a few days after filling up with gas, would that be part of the problem?

Posted on Nov 07, 2008

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Thermostats are more important than ever before.

What the thermostat does;
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radiator and the coolant reservior. When the coolant in the engine reaches the temperature rating,
on the thermostat, ( 195 to 205 degrees F ), the thermostat opens to allow the two parts of coolant to change places. Now the cooled coolant in the radiator and reservior flows into the engine while the heated coolant flows from the engine into the radiator and reservior to be air cooled by the radiator fan. Engines are at their peak of efficiency at 195 to 205 degrees F.

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Need instructions for replacing thermostat on a 2001 Grand Cherokee 4.7 litre

Do not loosen radiator drain **** with system hot and pressurized. Serious burns from coolant can occur.

NOTE Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse. If thermostat is being replaced, be sure that replacement is specified thermostat for vehicle model and engine type.

  1. Locate the Cherokee's thermostat intake housing by following the top radiator hose to the engine. The hose connects to the thermostat intake. A second, smaller hose connects to the left side of the radiator hose. This is a bypass hose for the heater.
  2. Remove the two bolts that secure the Cherokee's thermostat intake housing to the engine with a socket and ratchet and lift the intake upward to drain the coolant in the hose back into the radiator.
  3. Remove the gasket and the thermostat from the engine and discard them. Wipe the mating surfaces of the thermostat intake housing and the engine off with a clean towel.
  4. Place the new thermostat, spring down, into the engine and place the thermostat gasket over the thermostat.
  5. Place the thermostat intake housing onto the thermostat gasket. Thread the bolts into the thermostat intake by hand to avoid cross-threading the bolts and then tighten them using a socket and ratchet.
Additional information:
  1. Clean mating areas of timing chain cover and thermostat housing.
  2. Install thermostat (spring side down) into recessed machined groove on timing chain cover.
  3. Position thermostat housing on timing chain cover.
  4. Install two housing-to-timing chain cover bolts. Tighten bolts to 115 inch lbs. (13 Nm).
    CAUTION Housing must be tightened evenly and thermostat must be centered into recessed groove in timing chain cover. If not, it may result in a cracked housing, damaged timing chain cover threads or coolant leaks.
  5. Install lower radiator hose on thermostat housing.
  6. Install splash shield.
  7. Lower vehicle.
  8. Fill cooling system.
  9. Connect negative battery cable to battery.
  10. Start and warm the engine. Check for leaks.
Good Luck and if this helps don't forget to vote.

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The purpose of the thermostat is to regulate the coolant system to prevent the engine from overheating. A faulty thermostat will stick and not allow the coolant to enter the engine.
Follow the upper rad hose to the engine and at the engine there is the thermostat housing.
Undo the bolts and lift off the connector and replace the thermostat.The thermostat housing is attached with three bolts.Lift the thermostat out of the housing. The thermostat rests at the bottom of the housing.
-------This will help.Thanks.Helpmech.

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Need to know location of thermostate on 2.7 engine

2.7L Engine
  1. Disconnect negative cable from remote jumper terminal.
  2. Drain cooling system.
  3. Raise and safely support the vehicle.
  4. Remove the right front wheel and belt splash shield.
  5. Remove the accessory drive belts.
  6. Remove the lower alternator mounting bolt.
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  9. Disconnect AC clutch and AC pressure sensor electrical connectors. Reposition wiring harness.
  10. Remove the oil dipstick and tube. Plug hole in oil pan where dipstick tube mounts with water tight stopper.
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  11. Remove the remaining alternator mounting bolts. Remove alternator.
  12. Disconnect hoses at thermostat housing.
  13. Remove the thermostat housing bolts.
  14. Remove the thermostat and housing.


Fig. Air bleed valve (1) and thermostat housing (2) 2.7L-engine

Hope helps (remember rated and comment this).

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1 Answer

Cant get to thermosts housing unit on 01 Nissan Xterra

Nissan Frontier, Xterra 1998-05
Thermostat Removal & Installation - 3.3L Engine


Fig. Thermostat assembly and related components-3.3L engine (clock over pic for zoom)

NOTE Never remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure engine coolant escaping from the radiator.
  1. Be sure the engine is cold.
  2. Disconnect the negative battery cable.
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  4. Remove the upper and lower radiator hoses. Remove the fan shroud.
  5. Remove the drive belts and the pulley bracket.
  6. Remove the water inlet retaining bolts.
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To install:
  1. Installation is the reverse of the removal procedure.
  2. Be sure to apply a continuous bead of the proper grade and type RTV sealant to the housing.
  3. Install the thermostat with the jiggle valve or air bleeder at the upper side.

    Fig. Thermostat jiggle valve/air bleeder location-3.3L engine
  4. Be sure to refill the cooling using the proper grade and type engine coolant.
  5. Start the engine and check for leaks.
  6. Start the engine and allow it to reach operation temperature. Recheck the coolant level, fill as required.
Hope helps (remmeber rated this).

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1 Answer

How to replace thermostat

300M, Concorde, Intrepid, LHS, 1998-2004 - Thermostat Removal & Installation 2.7L Engine
  1. Disconnect negative cable.
    CAUTION Do not remove pressure cap with the system hot and under pressure because serious burns from coolant can occur.
  2. Drain cooling system.
  3. Remove radiator lower hose from thermostat housing.
  4. Remove nuts from heater tube flange studs.
  5. Loosen starter bolt at heater tube bracket.
  6. Pull heater tube out of thermostat housing and position out of the way.
  7. Remove bolt and two studs.
  8. Remove thermostat housing, O-ring and thermostat.
  9. Remove thermostat housing bolts.
To install:
  1. Clean gasket sealing surfaces.
    NOTE Install thermostat with the bleed valve located at the 12 o'clock position, between tabs on seal.
  2. Install thermostat and seal into thermostat housing .
  3. If removed, install two studs.
  4. Install thermostat, thermostat housing and O-ring and bolt. Tighten attaching bolts to 105 inch lbs.(12 Nm).
  5. Lubricate new heater return tube O-ring with coolant.
  6. Position heater return tube flange over two studs. Install nuts.
  7. Tighten retaining nuts to 53 inch lbs.(6 Nm).
  8. Tighten starter bolt to 40 ft. lbs. (54.3 Nm).
  9. Connect the lower radiator hose to the thermostat housing. Install hose clamps.
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  12. Connect negative cable.
3.2L & 3.5L Engines
  1. Disconnect negative cable.
    CAUTION Do not remove pressure cap with the system hot and under pressure because serious burns from coolant can occur.

  2. Drain cooling system.
  3. Raise vehicle on hoist.
  4. Disconnect electrical connectors from engine oil and power steering pressure switches.
  5. Disconnect radiator and heater hoses from thermostat housing.
  6. Remove thermostat housing bolts.
  7. Remove housing, thermostat, and gasket.
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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.

Hope helps with this (remember rated this) Good luck.

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1990 Cadillac Deville 4.5L FI 8cyl Repair Guide

Never open, service, or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. In addition, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

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  2. It may be necessary to remove the upper air filter assembly on some models.
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Fig. Thermostat installation-4.5L and 4.9L engines

To install:
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  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.

Hope helps with this (remember rated this) Good luck.

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May 27, 2008 | 2001 Daewoo Lanos

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