I need to flush the radiator on an s 10 pickup 1998 6 cyl. It has some rust colored water in it and needs to be flushed out. Can someone tell me how to do it? I could not find the drainage plug. I was told to open the drain plug, start the car, turn on the heater, place a running water hose into the top of the radiator? Is this correct?
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Re: flush a radiator
You don't want to do that anyway. There is a kit that goes in line to the heater core line. Live chat me and I'll explain it or you can go to your auto parts and they can explain it. Used to be a mobile mechanic and learned how to do a lot of stuff without breaking seals. If this is helpful, please post as such
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brow and muddy color usually is a sign of not using enough antifreeze to protect system from rust.
drain the radiator and completely flush the system. use a quality flush system from the auto parts store. after system is flushed so it only flows clean water after draining a few times then empty system and refill with 50/50 antifreeze /water and make sure system is cycled through 5-6 time to make sure air is purged from the system
as far as the rust, that most likely has been in the cooling system for a long time and repeated flushing will help but rarely will it completely rid the problem.
Do you have heat or is the heater blowing cold? Could be a bad thermostat but it could be more serious such as extreme cylinder head pressure. hard to say without seeing the vehicle. Try to see if the coolant is circulating with the radiator cap off. If the thermostat is open you should see something.
That brownish color is caused by oxidation(rust) of the waterways in the engine block. Dont worry, your engine wont rust through. This is normal on any car. Just flush it out until the water runs clear. Refill with water and use a good antifreeze as well as it contains rust inhibitors.
You most likely have a leak if you hear hissing. The rust colored sludge is most likely from rust but most coolants are 50% water. If you see black spots in the sludge then you probably have water and oil mixing. This is caused by a leak between the systems. The most common causes are; bad head gasket, cracked head or cracked block. Check your oil if your oil is cloudy or there is a similar sludge on your dip stick then you definately have a serious engine problem that will only get worse. I don't know what a jiffyluber is so I can't say as to that.
mcdevito75 here, Sounds like you need the cooling system flushed at a radiator shop, the new radiator insatlled is bringing all the dirt from the engine to the recovery container, the brown your seeing is a bit of rust. Have the cooling system flushed at a radiator shop.
The only engines I have ever seen that needed to be "flushed" were engines that had used Quaker State oil for a long time. Usually about the only good way to tell is your engine is gummed up is to remove the oil pan of the intake manifold and see how much residue is built up in the engine. If your radiator has rust in it and the cap & gasget have rust deposits on them and or the overflow resivoir tank has rust in it thenn I would say to drain and flush the coolant system. If there is no rust, the coolant is the orinigal coolant color and the engine is not overheating it does not need to be flushed. Follow the reccomendations of the coolant manufacturer as far as to the length of use before draining and replacing with fresh coolant.
Hi. apparently the mechanic did not rinse the contents out completely after the flushing was administered. During the flushing of a radiator, there may be a good amount of debris that will build up, due to the flushing compounds effect on the crude inside the radiator. This is why there should be a rinsing stage to clean out all that is removed, via the flushing procedure. If the rinse is not donecorrectly, some of the contaminates will be left behind to mix in with the new radiator fluid. The rust/debris will mix contaminate the new fluid that is poured in, thus, causing the brown color you have noticed.
Most radiator fluids will be green, or orange in color, but never brown or greenish brown. This greenish brown will indicate that there is some rust deposited that were not rinsed out properly, after the flushing of the radiator. I would return the vehicle to the mechanic to request a re-flush of the radiator. They should do it for free.
NOTE_ A more serious issue will be a damaged oil cooler. this will cause the same symptoms within the color of the fluid, if your vehicle is equipped with this device. Once the oil cooler has ruptured, it will cause the engine oil to be transfer into the radiator, thus, changing the color of the fluid.
The rust is probably in the engine. There are many little pockets, water ways, water jackets (around the cylinders), etc, so getting all the rust out without dunking the block and heads in a cleaning tank is about imposible. I would recommend giving it really good flush every 4 to 6 months. I would try flushing the radiator before replacing it because it is probably not rusted, even though it is full of gunk.
i hate myself removing those drain plug i had a couple break on me i always remove thethe lower radiator hose try removing it at the water pump less danger to break the radiator
remove hose put it down and everything will come off thanks pierre