Question about Mitsubishi Mirage

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Thermostat gasket blown

Water is leaking @ water outlet pipe and thermostat housing connection. Will new thermostat gasket fix leak?

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  • Mitsubishi Master
  • 5,280 Answers

Is it all one piece, the outlet pipe and the t-stat housing? The gasket goes on the bottom of the housing where it mates to the engine. If the coolant is leaking from the bottom of the housing, that would require a new gasket. If coolant is leaking where the radiator hose connects to the pipe, have you tried tightening the hose clamp?
If the outlet pipe and housing are separate, there may be an O-ring seal between them. You may want to pull off the radiator hose and check if the pipe is so badly corroded and rusted that it cannot seal anymore, or may have a hole in it, especially if it is thin metal.

Posted on Jan 09, 2013

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6ya6ya
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Posted on Jan 02, 2017

  • 832 Answers

SOURCE: my 98 chrysler cirrus is lesking water and im told

First open the hood of your car and check where the leak is coming. Thermostat gasket is one source but
it could also come the radiator, radiator hose, or the
water pump. Check all these items, and you can do
the repairs by replacing the defective parts. Except for
water pump that really needs a mechanic to replace the
bearings and the mechanical shaft seal.

Posted on Oct 09, 2009

csmock132
  • 4669 Answers

SOURCE: i have a leak in the water pump housing gasket

Do you have a leak at the water pump cover? The water pump? Or the 4 gaskets that seal the water crossover (that the water pump is in) to the cylinder heads?

Posted on Mar 31, 2010

elshaddai159
  • 1016 Answers

SOURCE: 2001 chrysler sebring leaking water beneath

Hi,

This is called the water pump weep passage which is a sign that your seal in the water pump has failed.

You need to replace the water pump.

Posted on Sep 15, 2010

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1 Answer

Water leaking out of hole next to thermostate


there are two pipes connected to the thermostat housing, between the two pipes and the housing there a gasket and two O-rings. the easy way to fix it is take out the exhause mainfold and a few bolts along the pipes to replace those gasket and o-rings. should be under 1 hour repair.

Feb 22, 2015 | 1994 Toyota Camry

1 Answer

There is a leak at the water outlet housing wherethe overflow tubing connects to it. There is no gasket or o ring to solve this.. how do you fix it?


check the radiator hose going to thermostat housing.it could be leaking.if hose okay.thermostat seal more likely leaking, meaning you have to replace the thermostat with seal.if thermostat with new seal still leaking.thermostat housing has a small crack in it.need replacing.

Apr 12, 2011 | 1999 Oldsmobile Alero

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

2 Answers

I need to replace the thermostat it is sticking


DRAIN COOLANT LEVEL DOWN BELOW THERMOSTAT.PLACE DRAIN PAN UNDER VECHICLE TO CATCH ANTIFREEZE.WHEN DONE PUT ANTIFREEZE SAFE PLACE FROM KIDS AND ANIMALS.WHEN DONE DRAINING SOME ANTIFREEZE.FOLLOW RADIATOR HOSE TO TOP OF INTAKE TO THERMOSTAT HOUSING. LOOSEN HOSE CLAMP REMOVE RADIATOR HOSE FROM THERMOSTAT HOUSING.THEN LOOSEN HOUSING BOLTS.REMOVE THERMOSTAT HOUSING AND THERMOSTAT.CLEAN BOTH THE THERMOSTAT HOUSING SURFACE AND INTAKE SURFACE YOU CAN USE ACETATE OR BRAKE CLEANER AND SCOTCH BRITES ROLL OF CLEAN PAPER TOWEL. AFTER CLEANING HOUSING AND INTAKE SURFACE MAKE SURFACE CLEAN SMOOTH FROM THE DEBRIS WHEN DONE. TAKE THERMOSTAT PUT GASKET SEALER ON BOTH SIDES OF GASKET PUT GASKET TO THERMOSTAT HOUSING MAKE SURE GASKET AND THERMOSTAT HOUSING HOLES ALIGN CORRECTLY.NOW PLACE NEW THERMOSTAT IN PLACE IN THE INTAKE.MAKE SURE THERMOSTAT SPRING END GOES TOWARD ENGINE FACING DOWN.THEN INSTALL THERMOSTAT HOUSING WITH GASKET TO THE INTAKE.TORQUE THERMOSTAT HOUSING BOLTS TO 20 FT LBS.WAIT 1 HOUR BEFORE POURING ANTIFREEZE BACK IN THE COOLANT SYSTEM GIVE THERMOSTAT GASKET SEALER LITTLE TIME TO CURE.SO YOU WONT HAVE COOLANT LEAKS.NOW IF THERMOSTAT HAS THE LARGE O- RING ON IT YOU DONT HAVE A THERMOSTAT HOUSING GASKET THE THERMOSTAT O- RING IS THE SEAL THAT HOLDS COOLANT INSTEAD OF GASKET.WHEN THERMOSTAT AND HOUSING IN PLACE.INSTALL RADIATOR HOSE TO THERMOSTAT HOUSING TIGHTEN HOSE CLAMP.THEN FILL RADIATOR BACK UP WITH THE COOLANT YOU DRAIN OUT.START VECHICLE UP. THEN CHECK FOR LEAKS.

Nov 03, 2010 | 1992 Buick LeSabre

1 Answer

Just need to know were the water pump on montero sport 1998 3.0 Ls engine????


It's under the timing cover on the front of the engine. I have pasted autozone.com instructions to replace the water pump below.


3.0L & 3.5L Engines

  1. Before servicing the vehicle, refer to the Precautions section.
  2. If necessary, properly release the fuel pressure.
  3. Drain the cooling system.
  4. Remove or disconnect the following:

    Negative battery cable
CAUTION Wait at least 90 seconds after the negative battery cable is disconnected to prevent possible deployment of the air bag.

Upper radiator shroud Accessory belts Air conditioning compressor tensioner pulley, if equipped Cooling fan and clutch assembly and the water pump pulley Thermostat and housing on 3.0L, 3.5L engines Water outlet, gasket and houses Radiator hoses from the water pump Crankshaft pulley(s) Timing belt covers. If the same timing belt will be reused, mark the direction of the timing belt's rotation, for installation in the same direction. Be sure the engine is positioned so the No. 1 cylinder is at the TDC of its compression stroke and the sprockets timing marks are aligned with the engine's timing mark indicators. Timing belt Water pump bolts are different lengths, note their positions before removing. Water pump from the block Water pipe connection and O-ring

To install:
  1. Clean and dry the mating surfaces of the block and water pump
  2. Install or connect the following:

    New O-ring on the water pipe connection, wet the new O-ring with water to aid in installation Water pump, with a new gasket, Torque the bolts to 17 ft. lbs. (23 Nm) on 3.0L and 3.5L engines Alternator bracket bolt to 17 ft. lbs. (23 Nm) Timing belt(s) and covers Crankshaft pulley(s) Thermostat and housing on 3.0L, 3.5L engines. Torque the bolts to 12-14 ft. lbs. (17-20 Nm). Radiator hose to the water pump Water outlet, new gasket and houses. Torque the bolts to 12-14 ft. lbs. (17-20 Nm). Water pump pulley Cooling fan and clutch assembly Air conditioning compressor tensioner pulley, if equipped Accessory belts Upper radiator shroud Thermostat and housing on 3.0L, 3.5L engines Negative battery cable
  3. Refill the radiator with coolant. This cooling system has a self-bleeding thermostat, so system bleeding is not required.
  4. Run the vehicle until the thermostat opens and fill the overflow tank. Check for leaks.
  5. Once the vehicle has cooled, recheck the coolant level.

Oct 26, 2010 | 1998 Mitsubishi Montero Sport

1 Answer

Location of thermostat on 2002 olds alero 2.2


Thermostat Removal & Installation 2.2L Engine To Remove:
  1. Remove the exhaust manifold. If equipped with an automatic transmission.
  2. Drain the cooling system.
  3. Remove or disconnect the following: chevy_cav_02-04_tstat.gif

    • Thermostat housing to water pump feed pipe bolts. chevy_cav_02-04_feedpipe.gif

    • Thermostat housing to water pump feed pipe.
    • Thermostat.
To Install:
  1. Install or connect the following:
    • Thermostat.
    • Thermostat housing to water pump feed pipe.
    • Thermostat housing to water pump feed pipe bolt.
      1. Tighten bolt to 89 in lbs (10 Nm).
    • Exhaust manifold if equipped with an automatic transmission.
  2. Fill the cooling system.
2.4L Engine To Remove:
Thermostat assembly 2.4L 87953024.gif

  1. Drain the cooling system.
  2. Remove the exhaust manifold heat shield.
  3. Remove the coolant inlet housing mounting bolts through the exhaust manifold.
  4. Raise and safely support the vehicle.
  5. Remove the coolant inlet housing stud from the oil pan.
  6. Remove wheel and tire assembly.
  7. Remove the engine splash shield.
  8. Remove the mounting bolts from the transaxle-to-engine block support. Remove the support.
  9. Remove the coolant housing pipe.
  10. Remove the thermostat.
  11. Clean the mating surfaces.
To Install:
  1. Install the thermostat.
  2. Install the coolant housing pipe.
  3. Install and secure the transaxle support-to-engine block mounting bolts.
  4. Install the engine splash shield.
  5. Install the wheel and tire assembly.
  6. Install the coolant inlet housing stud to the oil pan.
    • Tighten to 19 ft lb (26 Nm).
  7. Lower the vehicle.
  8. Install the coolant inlet housing bolts through the exhaust manifold.
    • Tighten the coolant inlet housing bolts to 10 ft lb (14 Nm).
  9. Install the exhaust manifold heat shield.
  10. Fill the cooling system.
  11. Inspect the system for leaks.
3.4L Engine To Remove:
  1. Drain the cooling system.
  2. Remove the air cleaner.
  3. Remove exhaust crossover pipe.
  4. Disconnect the surge tank line fitting from the coolant outlet.
  5. Remove the thermostat housing to intake manifold bolts.
  6. Remove the thermostat housing outlet and thermostat.
To Install:
  1. Install the thermostat and housing outlet.
  2. Install the thermostat housing bolts.
    • Tighten the thermostat housing bolts to 18 ft lb (25 Nm).
  3. Install exhaust crossover pipe.
  4. Connect the surge tank line fitting to the coolant outlet.
    • Tighten the fittings to 15 ft lb (21 Nm).
  5. Install the air cleaner.
  6. Fill the cooling system.
  7. Inspect the system for leaks
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Oct 14, 2010 | Oldsmobile Alero Cars & Trucks

2 Answers

My 1999 Alero must have a leak somewhere because the thermostat gauge rises every few days. I put coolant in it at least 1 a week. I had a new water pump and thermostat put on it, but it is still...


CHECK AROUND WATER PUMP AREA.AND THERMOSTAT HOUSING FOR LEAKS.THE MECHANIC WHO PUT THE WATER PUMP ON MAY FORGOT TO PUT SEALANT ON BOTH SIDES OF THE WATER PUMP GASKET CAUSING LEAKS.LOOK AROUND THERMOSTAT HOUSING FOR LEAKING.IF THERMOSTAT SEAL WAS DAMAGE DURING INSTALLATION IT WILL CAUSE LEAKING.IF ALL LOOKS GOOD CHECK FOR COOLANT LEAKS AROUND RADIATOR .CHECK RADIATOR TOP AND BOTTOM HOSES FOR LEAKS AND CHECK HEATER PIPES AND HEATER CORES HOSES FOR LEAKS.IF ALL HOSES GOOD.CHECK FOR LEAKING CORE PLUGS.

Sep 26, 2010 | 1999 Oldsmobile Alero

2 Answers

Where is the thermostat on a 2.2l ohc engine?


Removal & Installation 2.2L VIN 4 To Remove:
  1. Drain the cooling system.
  2. Remove the lower radiator hose from thermostat housing.
  3. Remove the thermostat housing bolts and outlet.
  4. Remove the thermostat.
  5. Clean the mating surfaces.
To Install:
  1. Install the thermostat.
  2. Install the thermostat housing and bolts.
  3. Install the coolant housing bolts. Tighten bolts to 14 Nm (10 ft. lbs.).
  4. Install the lower radiator hose to thermostat housing.
  5. Fill the cooling system.
  6. Inspect for leaks.
2.2L VIN F To Remove:
  1. Remove the exhaust manifold. If equipped with an automatic transmission.
  2. Drain the cooling system.
  3. Remove or disconnect the following: chevy_cav_02-04_tstat.gif

    • Thermostat housing to water pump feed pipe bolts. chevy_cav_02-04_feedpipe.gif

    • Thermostat housing to water pump feed pipe.
    • Thermostat.
To Install:
  1. Install or connect the following:
    • Thermostat.
    • Thermostat housing to water pump feed pipe.
    • Thermostat housing to water pump feed pipe bolt. Tighten bolt to 10 Nm (18 in. lbs.).
    • Exhaust manifold. If equipped with an automatic transmission.
  2. Fill the cooling system.
2.4L VIN T To Remove:
  1. Drain the cooling system.
  2. Remove the exhaust manifold heat shield bolts and shield. cavman.gif

    cavtstat.gif

  3. Remove the coolant inlet housing bolts.
  4. Lift vehicle.
  5. Remove the coolant inlet housing stud from the oil pan.
  6. Remove the wheel.
  7. Remove the right engine splash shield.
  8. Remove the transaxle-to-engine block brace bolts and brace.
  9. Remove the radiator outlet pipe.
  10. Remove the thermostat.
  11. Clean the mating surfaces.
To Install:
  1. Clean the mating surfaces.
  2. Install the thermostat.
  3. Install the radiator outlet pipe.
  4. Install the transaxle-to-engine block brace and install bolts.
  5. Install the right engine splash shield.
  6. Install the wheel.
  7. Lower the vehicle.
  8. Install the exhaust manifold heat shield and bolt.
  9. Tighten the exhaust manifold heat shield bolts to 14 Nm (10 ft. lbs.).
  10. Fill the cooling system.
  11. Inspect the system for leaks.
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Sep 09, 2010 | 2003 Pontiac Sunfire

1 Answer

How to change the thermostat


Alero, Grand Am 1999-2005 Thermostat - Removal & Installation 2.2L Engine
  1. If equipped with an automatic transaxle, remove the exhaust manifold, as outlined in this section.
  2. Drain the cooling system.
  3. Remove the thermostat housing to water pump feed pipe bolts.
  4. Remove the thermostat housing to water pump feed pipe.

    d1db35e.jpg
    Fig. Thermostat mounting-2.2L engine
  5. Remove the thermostat.

To install:
  1. Install the thermostat.
  2. Install the thermostat housing to water pump feed pipe.
  3. Install the thermostat housing to water pump feed pipe bolt. Tighten the thermostat housing to water pump feed pipe bolt to 89 inch lbs. (10 Nm).
  4. If equipped with an automatic transaxle, install the exhaust manifold, as outlined in this section.
  5. Fill the cooling system.

3.1L Engines
  1. Disconnect the negative battery cable.
  2. Drain the cooling system to a level below the thermostat housing.
  3. Remove the air cleaner assembly.
  4. Disconnect the surge tank line from the thermostat housing.
  5. Remove thermostat housing-to-intake manifold attaching bolt and nut, then remove the housing.
  6. Remove the thermostat.

To install:
  1. Clean all gasket surfaces completely.
  2. Insert the thermostat in the intake manifold.
  3. Attach the thermostat housing to the intake manifold.
  4. Install the mounting bolt and nut. Tighten to 18 ft. lbs. (25 Nm).
  5. Install the air cleaner assembly.
  6. Connect the surge tank line to thermostat housing.
  7. Refill the cooling system.
  8. Connect the negative battery cable, remove the radiator cap, then start the engine. Allow the engine to run with radiator cap removed, until the upper radiator hose becomes hot (thermostat open). With the engine idling, add coolant to the radiator until the level is up to the bottom of the filler neck.
  9. Install the radiator cap, making sure the arrows line up with the overflow tube.

3.4L Engine
  1. Drain the cooling system.
  2. Remove the air cleaner.
  3. Remove exhaust crossover pipe.
  4. Disconnect the surge tank line fitting from the coolant outlet.
  5. Remove the thermostat housing to intake manifold bolts.
  6. Remove the thermostat housing outlet and thermostat
  7. Clean the mating surfaces.

To install:
  1. Install the thermostat and housing outlet.
  2. Install the thermostat housing bolts. Tighten the thermostat housing bolts to 18 ft. lbs. (25 Nm).
  3. Install exhaust crossover pipe.
  4. Connect the surge tank line fitting to the coolant outlet. Tighten the fittings to 15 ft. lbs. (21 Nm).
  5. Install the air cleaner.
  6. Fill the cooling system.
  7. Inspect the system for leaks.
Hope this help (remember comment and rated this).

Apr 04, 2010 | 1999 Oldsmobile Alero

1 Answer

Thermostat location and replacement


please rate as fxed if this helps.

Thermostat, Water, 3.0L Aerostar and Ranger Removal
  1. Drain cooling system.
  1. Remove upper radiator hose (8260) from water outlet connection.
  1. Remove two retaining bolts.
  1. Remove water outlet connection and water thermostat (8575) as an assembly.
  1. Discard gasket. Clean sealing surfaces with gasket scraper. Gouges in aluminum could form leak paths. Use care when scraping thermostat housing-to-gasket mating surfaces.
Installation
  1. Make sure sealing surfaces are totally free of gasket material.
  1. Install water thermostat into thermostat housing as illustrated.
  1. Position gasket onto thermostat housing using bolts as holding devices. Install water thermostat and tighten bolts to 20-30 Nm (14-21 lb-ft).
  1. Install upper radiator hose . Tighten clamp securely.
  1. Fill and bleed cooling system with proper amount and mixture.
  1. Start engine (6007) and check for coolant leaks.

Apr 04, 2009 | 1995 Ford Aerostar

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