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Why is your coolant very orange rust colored and will not flush out of the radiator clay like sediment in the overflowhow do you flush entire system 94 ford ranger?
Wiki User
∙ 17y ago
Yes you flush the entire cooling system.what probably happened is that the cooling sustem was filled with straight water and sat for an extended period of time. back flush system until clear water is coming out then use a chemical flush to strip out any other contaminants. refill with a 50/50 coolant /water mix. You'll probably need to take the radiator to a radiator shop and have it "rodded" and reconditioned. Rust sediment and mineralization can cause serious problems that will not be removed by flushing the system. Avoid that problem in the future by using a water pump lube/rust inhibitor every year that you do not change your anti-freeze.
Wiki User
∙ 17y ago
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