Mechanics

TOYOTA RAV4 COOLANT PROBLEM

1997 Toyota Rav4 • 140,000 miles

Coolant flush
i asked a friend of mine, a mechanic, about doing a coolant flush at home, given I don't have the coolant flush machine.
He said: warm up the car. Disconnect upper radiator hose. Insert a garden hose in the disconnected hose (disconnected at the radiator, so the water from garden hose would flow into the block. He said I could also add a Flush Capsule(?) Sold at Parts Store). And when the coolant coming out of the radiator turned to water, to withdraw the garden hose, and let the engine running for about 1 minute and shut it off. He said at that time all the water would have come out of the block.
Now reconnect radiator hose and fill with fresh coolant.
i'm a liitle appehensive whether this method was safe even though it was for 1 minute. Even when the garden hose was inserted with water flowing, it would appear to me it was not safe, because it's just water ( couldn't this cause a crack( a fissure))?
is this method safe?
if not, what are your recommendation for the DIY?
Avatar
RAV4X4
December 25, 2012.



No, too much water is left in the system when it comes time to add needed coolant.

You need a shop with the correct machine to perform this operation.

Roy

ASEMaster6371
Dec 25, 2012.
Thank you

Tiny
RAV4X4
Dec 25, 2012.
Good luck

ASEMaster6371
Dec 25, 2012.