Question about Chevrolet Impala

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2002 impala the radiator hose harden,coolant don't flow leak from the top hose.Could this the thermostat?

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  • Chevrolet Master
  • 5,763 Answers

This could be the thermostat if you are sure its not flowing .you will need to see why the hose is leaking, is it a bad hose or a loose clamp, if the coolant leaks and is not full this will make the car overheat, start by replacing the thermostat and repairing the coolant leak and go from there,

Posted on Apr 10, 2011

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  • Chevrolet Master
  • 453 Answers

That is a possibility. Does the engine overheat?

Posted on Apr 10, 2011

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1 Answer

Why is my radiator getting hot? the pump is working, the water is circulating , thermostat seems to be working also!


Some possible causes of the high coolant temp...........

1. The radiator fans are not kicking in when the temp rises.

2. The water pump may be working but if the impeller blades have corroded badly the performance of the water pump will be very poor. (Some water pumps used by some manufacturers have plastic impeller blades and over time these blades will break apart).

3. The thermostat is stuck partly open and is retarding 100% coolant flow through the radiator.

4. You have a partial blockage in the cooling system which is retarding coolant flow. This may be in the radiator or in the cooling passages in the engine.

5. Check if you have bubbles in the radiator. Wait for the engine to cool and start the engine. Take off the cap and wait for the thermostat to open and for the hot water to begin flowing through the top hose into the radiator. Then watch for any bubbles appearing in the coolant. If there are bubbles continuously it is an indication of a combustion leak into the cooling system and that will cause overheating until the problem is fixed. In that event have a leak down test carried out on each cylinder to confirm that the combustion is leaking into the cooling system..

Have the problem, whatever the cause, investigated and fixed. Allowing the engine to run hot will cause expensive engine damage many times what it will cost you to fix the cooling issue you have now.

By the way, blowing out a coolant hose is not a fault. It is due to owner negligence in not replacing the top and bottom radiator hoses every 6-7 years because over time the hoses deteriorate like many items in a vehicle that require routine maintenance and replacement due to wear, use and time.

Dec 25, 2015 | 2002 Nissan Altima 3.5 SE

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

2000 Linc Cont overheating. I replaced water pump, thermostat, belt & tensioner, blew through top hose out bottom (rad not clogged). Top hoses hot, bottom hose cold.


Do you have any coolant flow thru radiator with cap off?

Is thermostat in correctly?

Do a Combustion Leak Test at radiator or cap,
on gases from coolant. You may have a Head
Gasket going bad

Apr 06, 2011 | 2000 Lincoln Continental

1 Answer

Leaking in front of the engine.. The leak is about 2 inches above the intake gasket and around the thermostat housing gasket.. It's coolant and if I turn my car on it overheats within 10 minutes.. The...


Drain the coolant, undo the thermostat housing and remove the thermostat. Drop it into a pan of boiling water and watch closely. The thermostat should pop open. Take the pan off the boil and watch for about ten minutes, the 'stat should pop closed. If the 'stat does not respond then is is dead and new one is required, along with a gasket. Renew the coolant if rust colored. Top up thoroughly squeezing hoses to encourage air bubble removal.

Feb 09, 2011 | 2002 Chevrolet Impala

1 Answer

Change thermostat 2003 impala


Follow the top radiator hose from the radiator to the engine. The housing that contains the thermostat is where the hose attaches. Make sure the engine is cold because you will lose some coolant. Remove the radiator hose. Remove the two bolts that hold on the thermostat housing. Remove housing. Do not remove the thermostat until you have the new one ready to put in and put it in exactly in the same direction as the old one. If you don`t it will not work properly. Re-assemble everything taking care not to over tighten the housing bolts. Top up the coolant and start the engine. Observe the coolant level until the engine is at operating temperature and check your coolant level. Top again if needed.

Jan 30, 2011 | 2003 Chevrolet Impala

1 Answer

06 chevy.Impala running hot,i install a new radiator and fill with dexcol ilet run 30sec. later it run hot. how do i bleed the air out


DID you change out the Thermostate? the thermostate will open at around 180 degrees to cool off the motor if it fales to open it will make the car run hot. REPLACEMENT BELOW $40.oo range.

  • Open the hood of the impla and locate the thermostat housing. Find the largest hose at the top of your radiator, then follow it until it connects onto a portion of the Impala's engine block. The piece that to which the hose connects is the removable thermostat housing.

  • 2

    Use a jack to raise the Impala off the ground, then settle it down onto jack stands. Make sure the car is in park and the emergency brake is on.

  • 3

    Place a large container under the Impala's radiator. Drain the radiator into the bucket by loosening the clamp on the lower coolant hose with a flat-blade screwdriver, then removing the hose entirely so that the coolant flows into the bucket. Once the coolant stops flowing, set the bucket aside.

  • 4

    Use the screwdriver to loosen the clamp on the coolant hose connecting to the thermostat housing, then remove the hose from the housing completely. This will give you access to the bolts securing the housing to the Impala's engen block

  • 5

    Use a wrench or ratchet and sockets to remove the bolts securing the housing to the engine block, then set them aside somewhere where you will not lose them. Loosen and remove the thermostat housing to reveal the thermostat.

  • 6

    Make a careful note of how the thermostat is oriented toward the Impala's engine block. You must install the new thermostat in the exact same way as the old one is installed. Remove and discard the old thermostat.

  • 7

    Use a scraper tool or a razor blade to remove any remaining bits of thermostat gasket from the bottom of the thermostat housing and from the engine block. It is important to get all the remains off; otherwise the new gasket will not seal properly.

  • 8

    Apply a layer of gasket sealant to the bottom of the Impala's thermostat housing, then press the new gasket against the sealant so that it sticks and makes a good seal.

  • 9

    Install the new thermostat in the manner you noted in Step 6, then replace the thermostat housing and secure it down with the bolts. Reconnect the hoses you disconnected--making sure that the clamps are tightened down so no coolant leaks--and refill the Impala's radiator with the coolant you drained out earlier. Use your jack to lower the Impala back to the ground.

  • Dec 05, 2010 | 2006 Chevrolet Impala

    1 Answer

    Car overheated and lost all power. how do I get it to start?


    ENGINE NOT GOING TO START IF GET TOO HOT FIRST THING I WOULD REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP THEN ADD COOLANT UNTIL COOLANT LEVEL CORRECT THATS WHEN THERMOSTAT OPEN UP AND TOP HOSE HOT.CHECK FOR LEAKING RADIATOR HOSES CHECK TOP RADIATOR HOSE CHECK BOTTOM RADIATOR HOSE.CHECK FOR LEAKS AROUND THE RADIATOR LOOK DOWN BELOW COOLANTS FANS CHECK FOR LEAKS AT RADIATOR CORES OR LEAKS AT THE RADIATOR PLASTIC SIDE CONTAINERS. CHECK FOR LEAKS AT WATER PUMP WEEP HOLE AND CHECK FOR LEAKS AT THE HEATER HOSES AROUND ENGINE BLOCK TO THE HEATER CORE HOSES. THERE IS A REASON CAR OVERHEAT.IF CAR OVERHEAT WHILE DRIVING YOU HAVE FAULTY THERMOSTAT OR LEAKING OUT COOLANT OR BLOWN HEAD GASKET.IF ENGINE OVER HEAT WHILE SITTING DURING A LONG IDLING PERIOD.YOU COULD HAVE FAULTY COOLANT TEMPERATURE SENSOR OR FAULTY COOLING FAN FUSE OR RELAY.HOT WIRE COOLANT TO SEE IF IT RUNS IF NO REPLACE FAN MOTOR. IF YES FAN MOTOR COULD HAVE FAULTY WIRE OR PCM FAILURE. CHECK ENGINE CRANKCASE IF OIL LOOKS LIKE MILK SHAKE ENGINE HEAD GASKET LEAKING.

    Nov 26, 2010 | 2002 Mitsubishi Galant

    2 Answers

    Hi, I have 2004 3.4 impala and would like to know where the thermostat is located. Is it in the upper or lower radiator hose?


    Upper which also calls for remove throttle body air duct assy, reposition air pipe, remove exhaust crossover heat shield, remove crossover, then thermostat housing.31750f6.jpg

    Jul 10, 2009 | 2004 Chevrolet Impala

    1 Answer

    Thermostat


    1. Disconnect the negative battery cable.
    2. Drain the cooling system.
    3. Remove the three bolts and position the A/C compressor aside.
    4. Remove the radiator hose clamp from the thermostat housing.
    5. Remove the radiator hose from the thermostat housing.
    6. Remove the three bolts and the thermostat housing.
    7. Remove the thermostat and the O-ring from the thermostat housing.
    8. Clean any corrosion or debris from the thermostat housing.
    9. Clean the mating surfaces.
    10. Inspect the thermostat.

    To install:

    WARNING Position the air bleed valve on the thermostat toward the top of the engine.
    1. Install the thermostat in the described position to the cylinder head.
    2. Install a new thermostat O-ring.
    3. Install the thermostat housing.
    4. Secure the thermostat housing with three bolts and tighten to 12 ft. lbs. (16 Nm).
    5. Install the A/C compressor and secure with three bolts. Tighten the A/C compressor bolts to 17 ft. lbs. (23 Nm).
    6. Install the radiator hose and clamp to the thermostat housing.
    7. Fill the radiator with approved coolant.
    8. Connect the negative battery cable.
    9. Start the engine.
    10. Allow the coolant to attain operating temperature (both hoses feel warm and the coolant is flowing through the radiator).
    11. Check for leaks in the cooling system.
    12. Shut off the engine.
    13. Install the radiator cap.



    Short answer is that it is located in the housing that the TOP radiator hose is attached to at the engine block.


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    Apr 05, 2009 | 2002 Chevrolet Tracker

    2 Answers

    Thermostat on 2002 Chevy Impala


    the best thing to get is the Haynes manual for your car at advanced auto or autozone or somewhere like that and the book will tell you how to take everything apart and put it back. i think the manual is about $16.00

    Jul 05, 2008 | 2002 Chevrolet Impala

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