PUNTO II: Brown Liquid in Radiator After Mechanic Visit, Coolant Issues, & Radiator Replacement

A week ago I picked up a car from a mechanic who exchanged the box and all the sealants because it was oil.
I also found out that the blue liquid turned into a brown liquid from the cooler

There was always a poured cooler fluid.
About a year ago, the radiator was replaced with a new cooler so it was not rusted.

I flooded him a week ago with water, I rode a little, and today I flooded again with water.

Are there any ways to deal with it?

Rinse the cooling system well, then pour the liquid, not water. The coolers in most cars are aluminum, they do not rust. If something rusts, it's a water pump, maybe some tubes.

I will see for a week what the color will be.
Is it better to rinse under running water?

There are means for cleaning cooling systems. Usually, water is enough.

The color changed because it flooded, or rather, they added up and mixed up the cooling fluids, as they would fit, for example, pink and red, you will have a brown crap. Wash the fresh root and the problem of the head!

What they shed into the canister has a lot of brown deposits. Nobody added liquid to me.
They replaced the radiator with me and flooded with coolant (blue). Nobody added anything after that.

I do not know if I'm storming in a glass of water, but maybe if they pulled out the engine, it got something from the fuser, etc., it got stuck there, so much of that crap was there?

The brown color is rather confused colors of cooling fluids. And if you want to sleep peacefully, do it test whether there is no oil or CO2 in the liquid.

Today, I have changed water twice in the radiator and it is much better.
This color is evidently rust.

This color is the effect of the mixed fluid, standard, rinse the system well and it will be ok.
Exactly rust-colored color is done when the wrong liquid is added.

When you were doing something with the engine, you probably dropped the liquid, and then instead of replacing the whole thing, they just replenished the others they just had. Do not pour water into the cooling system, even "for a moment".

tzok wrote:

If you were doing something to the engine, you probably dropped the liquid,

They were pulling out the engine so they dropped it.

tzok wrote:

and later instead of replacing the whole thing, they just complemented it with others,

It later dragged on for three days and flooded with water.

today 4x I changed water (after warming up the engine). It's almost clean.
2-3 more times and I will pour petra.

tzok wrote:

Do not pour water into the cooling system, even "for a moment".

Why? As it has already rusted, it will not change anything.

Flooding the system after running on the liquid will always end up with a brown mash in the equalizing tank ...

Do I write in Chinese? Since I have this car, no one poured water into the radiator. The mechanic showed me what he had poured from the radiator and it was a brown liquid with some sediment.

The water is now pouring to rinse it.
How I'm going to flood my petry.

11111olo wrote:

They were pulling out the engine so they dropped it.

11111olo wrote:

It later dragged on for three days and flooded with water.

11111olo wrote:

The mechanic showed me what he had poured from the radiator and it was a brown liquid with some sediment.

... and how do you know what he poured between removing the engine and draining the fluid? It's enough to pour a different liquid without first rinsing the system.

11111olo wrote:

Do I write in Chinese?

Honestly, it's a bit like that ...

tzok - water probably will not give such an effect, from what I know it is only when mixing liquids such circuses are happening.

The most deposits are in the engine block and in the heater. Remove the thermostat, disconnect the bottom hose from the radiator and pour water from the thermostat side.

tzok wrote:

... and how do you know what he poured between removing the engine and draining the fluid?

Which one again? As I took out the engine, I did not see it, but when it stopped turning after inserting it, it flooded the radiator with 100% water.
I do not know how you imagine it, but when he took out the engine, he did not put it in and he did not pull it out again.
In one day it's possible, but why would he do it? And I sincerely doubt that the whole cooling system is so wide.

bodom wrote:

The most deposits are in the engine block and in the heater. Remove the thermostat, disconnect the bottom hose from the radiator and pour water from the thermostat side.

After 6-7 water changes it is almost perfectly clean. Even 2-3 times and it will be ok.

In that case, I do not understand what was happening there, once you write that it flooded with water, then it did not flood, I do not understand it. Your statements do not contain information about the time or sequence of events you describe. The only described consequence is that you picked up the car from the mechanic and after a week you learned that the liquid was made of blue brown ...

You gave the car to the mechanic, he had to dismantle the engine, so he drained the fluid (it was already brown then?). He took out the engine, did what he had to do and put it back. After putting in the engine, poured in liquid or water? How long has the engine become "dry"? When did you notice that the liquid (water?) Turned brown?

I've almost flushed the cooling system so I close. I do not want to argue with a moderator who is somewhere wrong. Maybe a little rest from the forum may be useful.