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Re: diagram of which hose to disconnect to flush radiator
Both top and bottom hoses of the radiator are disconnected to flush out the radiator. I would suggest that you have this done professionally by a radiator shop as doing it yourself is not really effective as the flow rate has to be checked to monitor flow improvement to check for blocked cores. Blocked cores will not flush clean.
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Depends whether a problem is suspected or whether the radiator is definitely the cause of the trouble.
Flushing a radiator requires it to be no worse than moderately blocked because without reasonable water flow flushing is doomed to failure and even then it is nearly impossible to clean the interior of a radiator without taking it apart and rodding out the tubes or using either an acidic or a caustic additive.
Flushing the old coolant out and a small percentage of sludge is as much as can be accomplished unless an additive is used and even then with variable success. I do this by disconnecting the heater outlet hose and fitting the (turned on) garden hose to it and then running the engine until the water runs clear. Once this is done I transfer the garden hose to the top of the radiator (top hose disconnected and plugged) and also plug the disconnected heater hose. Start the engine and run until the water runs clear from the heater outlet.
A more thorough cleaning will require the radiator to be removed and laid flat on the floor. This is definitely a kill or cure process but no less risky than using a caustic additive.. The results are usually quite impressive but beware - you and anyone nearby is likely to get wet.
I have the poor-man's pressure washer, officially entitled a water-air gun, but as long as the radiator is filled with water and water is running through it and the inlet is sealed apart from the water-air gun or other arrangement that allows compressed air to be introduced into the filled radiator while water continues to flow will have the desired effect. I kneel on the radiator to keep it stable and sometimes I feel it grow under me when I give it the full air tank pressure.
If it breaks, the reason is it wasn't much good in the first place...
Oh yeah, there's help my friend. Take the lower radiator hose from the radiator only, hook a garden hose up to the lower hose and seal it with hose clamps on adaptors. The garden hose is 3/4 inch and measure the radiator hose for the right size adaptor. Turn the water on and just leave it to back flush for a while. After you're done there, disconnect both hoses to the heater core and back flush it also. Get it all out. Flush heater core the other way after back flushing it, that way you knock it all loose and out. And you are understood friend.
To flush your radiator. Find where the two hoses go into the firewall in your engine compartment and disconnect them.Next, take off your radiator cap and open the drain valve located on the bottom left side of you radiator.Using a garden hose with a sprayer attachment,spray water into one of the hoses from off of your firewall.This will flush out your entire system till the water comes out clear.If you want to flush out your heater core do the same thing into the hose connections for the heater core.
4. Lower vehicle. 5.Remove or disconnect the following:
Upper radiator mounting brackets and bolts.
Upper condenser mounting bolts.
6. Separate condenser assembly from radiator. 7. Tilt radiator toward engine and remove radiator from vehicle.
Clean radiator fins are necessary for good heat transfer. The radiator and air conditioning fins should be cleaned when an accumulation of debris has occurred. With the engine cold, apply cold water and compressed air to the back (engine side) of the radiator to flush the radiator and/or A/C condenser of debris. The installation of the new radiator is the opposite of the removal. Please upvote if this was helpful. :)
You can purchase a flushing kit from Prestone, you'll have to install a tee in one of the heater hoses to connect a garden hose to it. Pour some radiator flush in and run the car for a bit. Then shut off the car and let it cool down. Connect the garden hose to the tee and remove the radiator cap and turn on the hose, leave the water run until clear water is coming from the radiator. Turn off and disconnect it from the tee and replace the cap. Drain as much water from the radiator and refill the radiator and overflow bottle. Many oil change places can do it also. The have a machine to do it. Usually around $40-50.
You can purchase a flushing kit from Prestone, you'll have to install a tee in one of the heater hoses to connect a garden hose to it. Pour some radiator flush in and run the car for a bit. Then shut off the car and let it cool down. Connect the garden hose to the tee and remove the radiator cap and turn on the hose, until clear water is coming from the radiator. Turn off and disconnect it from the tee and replace the cap. Drain as much water from the radiator and refill the radiator and overflow bottle. Many oil change places can do it also. The have a machine to do it. Usually around $40-50.
you need to flush the radiator out.
With the engine cold, remove coolant bottle cap to release pressure.
Drain engine coolant from drain plug on radiator.
With the drain plug removed disconnect the highest hose connected to a radiator.
use an hosepipe and put it in place of the disconnected radiator pipe.
turn on the water to the hose pipe and let it flush out any sludge accumulated in the radiator. after a few minutes turn off water supply, reconnect radiator hose and drain plug and refil using recommended coolant mix for your galaxy (purchased at most autofactors and garages).
Also check your thermostat as if this is faulty it would stop the flow of coolant running around your engine.
Hope this helps you.
Here are the basics. There are many problems you may run up against (frozen bolts, stubborn or cracked hoses, rusted clamps, etc)that may need to be fixed or replaced before proceeding:
SHut off engine, allow to cool completely.
Disconnect the cooling fan, remove negative battery terminal connection.
Drain radiator by opening draincock and/or removing lower radiator hose, collecting coolant in a drain pan. Do not let it go onto the ground - bad for environment!
Open top radiator hose to allow remainder of coolant to flow out. A few quarts of coolant will remain in the engine block. You will want to totally flush and refill AFTER replacing the radiator to get all the crud out of the system.
Unbolt radiator and disconnect any other items still attached (transmission cooler, temp sensor wires, etc.).
Remove radiator and replace with new, reattaching all items removed from old radiator. Inspect other items and possibly replace suspects. Reattach hoses and make sure the clamps are tightened without pinching hoses excessively.
Do a flush job with water/radiator flush, making sure the water runs clear out the draincock. Instructions for flushing the cooling system are usually printed on the radiator flush bottle. Be sure the heater is on and the engine warms up completely to open the thermostat. SHut off engine and drain as much water as will leave.
Fill with 50% coolant mix (Dexcool or equivalent). Estimate water remaining in the engine and add 100% coolant to balance. COmplete fill with 50% mix. Remove air by running engine until warmed with the radiator cap off, adding coolant mix along the way.
The drain should be on the drivers side at the bottom of the radiator, facing the driver. It's a plastic "wing" that unscrews. There should also be a bleeder for exhausting the air from the system when you refill. The bleeder I'm familiar with is a brass screw screwed into the thermostat housing. (where the top hose attaches at the engine)