Cool Flush/clean.

[odessy]

The coolant when I bought my car is well brown. I have drained the old water and run Tectaloy flusht through it. Also have drained and filled up with tap water 4 or so times now, running the engine each time so the water circulates.

Each time the water is still coming out quite brown. It hasn't been having cooling problems yet but I would like to try get it a bit cleaner before refilling it with coolant and driving.

Any suggestions?

[Plattsy]

do it with your heater turned on full blast my man.

[Plattsy]

and never put cold water in a warm engine.

[Carbon 34]

The coolant when I bought my car is well brown. I have drained the old water and run Tectaloy flusht through it. Also have drained and filled up with tap water 4 or so times now, running the engine each time so the water circulates.

Each time the water is still coming out quite brown. It hasn't been having cooling problems yet but I would like to try get it a bit cleaner before refilling it with coolant and driving.

Any suggestions?

Mulkwat flush in water run as recommended

Then yank heater hose at core firewall when warm not hot hot

Drop the lower radiator hose as well ( warm not smoking hot)

Jam a garden hose twist nozzle in and turn on the heater to hot so the flap is open

Turn on the water and back flush all the junk out

A bunch will come out

let it run for till clear

Beware do not pressure it just tap pressure

Do not run engine

Tape up and plastic on all electrical

this could cause bad solder joints or pre existing leaks to leak again or worse ( if they had stop leak in them or heater core is corroded bad)

Drain all the water , refill with 100k or better coolant and distiller water if needed , about 10 litres

Drain air they bolts vents

Test at idle and top up

Go for a drive around the block a few times before parking it

Top off overflow to line

The next day check overflow and under cap

Once cold it will suck some in and be low

Check every day for a week or two to be safe

Edited December 18, 2012 by Carbon 34