Im a tight *** and dont want to pay anyone to change the top radiator hose in my 04 Forester...So in doin it myself i ask this question...How can i change this hose and still keep the coolant ? Coolant is virtually brand new and doesnt need changing...I know coolant is cheap and all but surely there is a drain plug maybe ? What sort of procedure can i take to empty, save and refill the radiator ? Im new to Suby's ....give me a Datto anyday !
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Re: Forester 04 Top radiator hose dilemma !
You really won't lose that much coolant in just changing the upper hose. But, crawl underneath the front of the car, and somewhere along the bottom left or right hand corner of the radiator, you'll find a valve of some type. Either rotate/turn the valve, or pull and turn, to open. Be sure to have a clean bucket ready and under the drain while doing this, to catch the drained fluid.
Then remove the radiator cap to allow air in the top of the radiator and speed the flow. Drain only to a point in the radiator that is below the lowest point of the top radiator hose, probably the engine end. Close the drain. Remove/replace the radiator hose. Pour coolant from bucket back into the radiator where the cap was removed. If it does not all go, then save. Start engine and allow to warm up. As soon as you see the level drop (meaning the thermostat has opened) add more coolant, and continue doing so until no more coolant can be added. Replace the cap. Monitor the coolant reservoir and add coolant as needed to the appropriate fill line. Do not store excess coolant where pets/animals could consume as it lethal such creatures.
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Hi Heather, Generally if there is no heat, there is no coolant in the radiator. Check if you can see coolant in the overflow tank. If none, add some. Then it's important to find out where the coolant has gone. Check hoses and connections for leaks at the radiator and elsewhere. Coolant hoses also run to the heater core and across the top of the engine to the thermostat and thermo-sensor.
TO CHANGE RADIATOR FIRST YOU TURN OFF RADIO FIRST TO KEEP FROM LOSING RADIO CODE.DISCONNECT NEGATIVE BATTERY CABLE.RAISE FRONT OF VECHICLE SUPPORT ON JACK STANDS.REMOVE THE LOWER SPLASH SHIELDS.NOW YOU NEED TO DRAIN THE COOLING SYSTEM.CATCH COOLANT IN A LARGE DRAIN PAN.REUSE COOLANT IF ITS FAIRLY NEW.IF COOLANT VERY OLD CHANGE IT.PUT OLD COOLANT IN SOME EMPTY CONTAINER TAKE TO A GARAGE OR WHOEVER DISPOSE IT.DONT POUR ON GROUND.HARMFUL TO THE ENVIRONMENT.MOVE THE AIR INTAKE DUCT PASSES OVER THE TOP RADIATOR HOSE.NOW WHEN ALL COOLANT DRAIN OUT.LOOSEN UPPER AND LOWER RADIATOR HOSE CLAMPS.THEN DETACH THE RADIATOR HOSES FROM THE FITTINGS.IF THEY ARE STUCK GRASP EACH HOSE NEAR THE END WITH A PAIR OF ADJUSTABLE PLIERS AND TWIST IT TO BREAK THE SEAL THEN PULL IT OFF REMOVE SMALL COOLANT SURGE LINES FROM TOP OF RADIATOR THAT GOES TO THE OVER FLOW RESERVOIR..DISCONNECT COOLING FAN ELECTRICAL CONNECTOR.THEN REMOVE THE COOLING FAN.REMOVE DISCONNECT AUTOMATIC TRANSMISSION COOLER LINES GET READY TO CATCH TRANSMISSION FLUID THEN PLUG LINES. NOW UNSCREW THE FOUR BOLTS TWO ON EACH SIDE OF THE RADIATOR THAT ATTACH RADIATOR TO THE AIR CONDITIONER CONDENSOR CAREFULLY TIP TOP OF THE RADIATOR SLIGHTLY TOWARDS THE ENGINE.REMOVE THE UPPER RADIATOR SEAL AND LIFT RADIATOR FROM THE ENGINE.NOW IS THE TIME TO REPLACE THE UPPER AND LOWER RADIATOR HOSES WITH NEW ONES SINCE ALL COOLANT REMOVE I WOULD REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.NOW WHEN YOU GET READY TO INSTALL NEW RADIATOR USE SHEETS OF CARD BOARD PROTECT RADIATOR FINS AND CORES FROM DAMAGE WHILE SITTING RADIATOR BACK IN PLACE.ONCE YOU GET UPPER AND LOWER HOSES IN PLACE ALSO PLACE SMALL SURGE HOSES FROM THE OVER FLOW RESERVOIR TO RADIATOR NEW THERMOSTAT AND TRANSMISSION COOLER LINES ALL HOOK UP. START POURING ANTIFREEZE IN THE RADIATOR OR OVERFLOW RESERVOIR IF RADIATOR DONT HAVE RADIATOR CAP ON IT.POUR A FULL GALLON ANTIFREEZE AND A HALF MORE IF LONG AS THE COOLANT STAYS ON THE COLD LEVEL MARK ON OVERFLOW RESERVOIR DONT OVER FILL.IF YOU POUR ANTIFREEZE IN RADIATOR KEEP POURING ANTIFREEZE UNTIL LEVEL STOP DROPPING AND LEVEL OFF AT RADIATOR TOP.START ENGINE CHECK FOR LEAKS. LET ENGINE RUN UNTIL IT WARM UP TOP RADIATOR HOSE GET HOT.WATCH COOLANT LEVEL IN RADIATOR OR COOLANT OVERFLOW RESERVOIR WHEN THERMOSTAT OPENS COOLANT LEVEL WILL DROP.ONCE YOU HAVE ENOUGH COOLANT IN THE SYSTEM COOLANT LEVEL WILL STOP DROPPING.THEN YOU READY TO GO.LET ENGINE SIT A LITTLE WHILE CHECK COOLANT LEVEL AGAIN.COOLANT LEVEL IN THE OVER FLOW RESERVOIR SHOULD BE AT HOT MARK FOR HOT ENGINE AND WHEN ENGINE COLD COOLANT LEVEL SHOULD BE AT THE COLD MARK.IF POUR ANTIFREEZE IN THE RADIATOR COOLANT LEVEL SHOULD BE AT TOP OF RADIATOR BELOW PRESSURE CAP.
Firstly check from where the steam is coming out from.
Is it from the top radiator cap???... then its loose just tighten it...
Is it from the hose.... lower hose or upper hose.... change it.
worst case if it is from the radiator itself.....
Whatever you do... please dont go for a long drive till this is fixed....
Till you get it fixed please top the radiator with clean water else the engine will cease...
Change the gasket is a must. You don't want antifreeze mixing with your engine oil. The antifreeze is carrosive to the engine bearing. The other thing to is if your radiator hose is soft and lod, they can and will collapse ristricting the flow of antifreeze.
Last to look at would be a weak water pump and you are going to have to change that.
Start with changing the radiator hose since it's the cheapest. Keep an eye on the oil antifreeze to make sure you aren't have the two mix.
Change the intake manifold gadket soon as posibel.
Good luck and hope this helps.