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Re: 2002 chryler sebring is leaking anti freeze
It depends on where the leak is coming from. If the water pump is leaking, it has a hole on the bottom of it. You will see a trail of dried anti freeze coming from the bottom of it, indicating a bad water pump. It's best to dry everything off, crank it up and let it come to operating temp and check for where the leak is coming from. It may just be an old hose or loose clamp.
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Hello rev7, this is an easy job on the 4.3 litre engine.
Drain some of the engine coolant by placing a bucket under the radiator and open the petcock (the plastic bolt facing the engine) located on the bottom of the radiator. Empty the coolant from the radiator until the radiator is about half full.
Remove the air intake, hose and the coolant neck (outlet) bolts using a ratchet and & 13 mm socket. Remove the outlet from the intake manifold. Take note of the direction the thermostat is seated and then remove the thermostat from the housing.
Clean the remains of the old gasket or sealer from the housing and outlet. Install the thermostat and gasket to the intake manifold in the same direction it was seated before removal. Put a thin layer of silicone on the water outlet surface. Install the outlet before the silicone dries
Install the water outlet bolts. Tighten the bolts to 18 foot pounds Filll the radiator completely and check for any leaks. Install the radiator cap. Install the air cleaner inlet hose. Start the engine and turn the heater on with the blower on high & run the engine until the thermostat opens. The top radiator hose will be hot when the thermostat opens.
Turn off the vehicle and allow the engine to cool. Check fluid level and add more antifreeze if needed.....Good luck & hope this helps.
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.
YEP YOU HAVE LEAK AT THERMOSTAT HOUSING.YOU NEED REMOVE THERMOSTAT HOUSING OUTLET AND CLEAN THE MATING SURFACE THOROUGHLYTHEN APPLY RTV SEALANT IN THE GROOVE OF THE WATER OUT LET HOUSING.INSTALL THERMOSTAT WITH SPRING TOWARD THE ENGINE TORQUE THERMOSTAT OUTLET HOUSING BOLTS 89 INCH LBS.IF STILL LEAKS OUTLET HOUSING COULD HAVE CRACK IN IT CAUSING LEAKING.
It Depends on which engine you have, this is how it goes for both. I use a little RTV with a new ring as well.
THERMOSTAT REPLACEMENT (4.2L ENGINE)
Removal Procedure 1. Remove the necessary coolant from the radiator. 2. Remove the generator. 3. Loosen the outlet hose clamp at the thermostat housing. Remove the outlet hose from the thermostat housing. 4. Remove the thermostat housing bolts. 5. Remove the thermostat housing from the engine block. 6. Clean all of the surfaces of the thermostat housing. 7. Clean the sealing surface of the engine block. Installation Procedure
1. Install the thermostat housing to the engine block. 2. Install the thermostat housing bolts. Tighten: Tighten the bolts to 10 N.m (89 lb in). 3. Lubricate the inner diameter of the radiator hose with engine coolant. 4. Install the outlet hose to the thermostat housing. Secure the hose with the clamp. 5. Install the generator. 6. Fill the cooling system with specified coolant and concentration. Follow the correct cooling systen bleed procedure for your engine. 7. Inspect all sealing surfaces for leaks after starting the engine.
THERMOSTAT REPLACEMENT (5.3L ENGINE)
1. Drain Radiator and remove the radiator outlet hose. 2. Remove the water pump inlet bolts. 3. Remove the water pump inlet and thermostat from the water pump.
Installation Procedure IMPORTANT: The thermostat is not serviceable separately. The water pump inlet and thermostat must be replaced as an assembly.
1. Install the thermostat and thermostat housing to the water pump. 2. Install the thermostat housing bolts.15 N.m 3. Install the radiator outlet hose. 4. Fill the cooling system with specified coolant and concentration. Follow the correct cooling systen bleed procedure for your engine. 5. Inspect all sealing surfaces for leaks after starting the engine.