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drain coolant system locate heater cores hoses going through firewall you need to buy the radiator flush kit at any auto parts stores. remove heater cores hoses from one end or buy extra long heater hoses same size as heater core hoses in vechicle at auto parts store use the flush kit when you flush through one of the heater core hoses let the other hose drain in a drain pan when you use home garden hose use low water pressure dont use garden hose to the max or you will rupture heater core. your best bet let radiator shop flush whole coolant system. because heater cores hoses are in a tight spot.make sure engine off if you just going to flush out heater core only .after flushing heater core good time to replace heater core hoses.if job too hard or complicated let radiator shop flush out radiator the engine block and heater core because if radiator stopped up or engine block stopped up the gunk and rust will reenter plug up heater core.if you tight on money you can flush out your own radiator.drain out radiator using large drain pan. remove top radiator hose and remove bottom radiator hoses connect to water pump.use garden hose with flush kit part with water pressure not too high put garden hose to top radiator hose run water until clear water run out bottom radiator hose in drain pan,the flush out engine block remove thermostat.if you had another spare thermostat housing with RTV SILICONE SEALANT THAT HAS SET UP INSTALL THERMOSTAT HOUSING BACK TO ENGINE WITHOUT THERMOSTAT FLUSH OUT THE ENGINE BLOCK, WHEN DONE INSTALL NEW THERMOSTAT THEN INSTALL ORIGINAL THERMOSTAT HOUSING WITH NEW ORING WHICH YOU BUY AT DEALERSHIP.IF ALL SOUND COMPLICATED LET RADIATOR SHOP FLUSH OUT COOLANT SYSTEM.
Technically it does not matter which heater hose you use. When the garden hose is attached to the tee fitting, and you open the drain for the radiator, clean water will flow thru the cooling system with the engine running. Keep in mind you may need to take the thermostat out to get flow without the engine being hot.
Once the engine has cooled, locate the radiator drain plug and place a
large catch pan underneath it. To expedite the draining process, remove your radiator fill cap to allow
air to enter the system. With the cooling system
refilled with tap water, replace the radiator fill cap and run the engine
allowing it to reach operating temperature.drain radiator, At this point, if you have opted to purchase a
radiator flush kit, you should refill the cooling system with tap water
and add the caustic fluid as directed.
Run the engine for as long as the radiator flush kit calls for (usually
less than 10 minutes). follow directions on bottle for flushing. if you feel you want to use a T connection just cut into return line, from heater core. then you can use a garden hose to flush system.
Hello! Thermostat needs to be replaced, but the cooling system should be "back flushed"...Go to a local auto parts store and purchase a back flush kit (under$10) It's a plastic tee that is installed in the heater inlet hose... A garden hose connects to the stem of the tee and cooling system is flushed out of the top of the radiator...Let it run until clear...Install thermostat...Cap off the tee...Add a gallon of 50/50 and the rest with Distilled water...Leave the cap off until all air bubbles out (even after thermostat opens)...With heater set on high...Install cap when all air is out...Guru...Saailer
There are several methods for flushing the cooling system on ALL engine cooling systems. Time honored is drain the radiator (drain ****). Fill with fresh water and run engine to operating temperature until cooling fans turn on. Drain cooling system again. Refill with 50-50 coolant. Another method is purchasing a "T" vlave (coolant flush/service kit) from Autozone, PepBoys, NAPA, O'Reilys, CarQuest, etc.). This "T" valve is installed in one of the heater hoses & attached to a garden hose. Remove the radiator cap & turn on the water supply to the garden hose. Let water run until flush water is 'clear'. Remove garden hose from T valve & refill radiator with pure coolant until the T valve drainage turns green/orange. Install T valve cap... DONE!
purchase a flush kit, and the flush cleaner from you local autopart store....there are instructions on it on where to put the hose adapter, I think you have to cut the input heater hose (one that goes from the core to the water pump) and splice in the provided tee from your purchased flush kit. run the cleaner through you cooling system and flush and fill....easy job...only take an hour....DO NOT forget to pull the drain on your radiator, people forget this all the time. Oh and enjoy watching all the gunk get flushed out...it is usually a sight to see. good luck
the best way is go to a Radiator shop and have a power flush done. You should remove the thermoast and put houseing back on flush with air and water togeter eng,rad,heater need to be flush.if real bad do it over but you nee air and water mix for a good job.
go to auto zone/ O"rileys and buy a flush kit, it is a kit that allows you to cut, a heater hose and install a TEE with a cap on it, the cap end is also the hookup for a water hose, wait until the engine is cool, cut the hose install TEE, hook up water hose, remove radiator cap, turn water on low, crank engine and flush until water is clear, reinstall cap and your block,radiator is flushed, don"t forget to put in coolant
Get a prestone flush kit. Splice in the t adaper with the heater hose and follow the directions. Check petcock on side of radiator for drain plug or remove lower radiator hose if you want to drain it next time.
cut and insert the "T" from the flush kit on the heater hose outlet or inlet. make sure you are cutting into the heater hose coming out of the firewall heater area and not a large vacuum line. if your not sure ask a mechanic.
connect the kits anti syphon to water hose and connect to the T you have installed , open the radiator , and flush very slow if engine is hot , or wait till engine is cool as a very cold flush can damage the engine.