Coolant Flush

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Thread: Coolant Flush

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    jjc
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    Default Coolant Flush

    Isn't always what it's cracked up to be. I was considering having a local "reputable" Toyota dealership do a "flush" on my '01 Tundra just to make sure everything was clean after replacing my timing belt and water pump. So I call them today and asked them what water they use to mix with the red coolant in their pump equipment..........and the tech's answer was "just tap water" .......

    So needless to say, I'll just go grab a few more jugs of distilled water and do the same d*mn flush I did the first time by draining the radiator and block.

    The "other reputable shop" I called said "sure we do flushes"......so I asked them if they use a pump package to perform this.....his answer was "not really, we drain the radiator and refill it"........I'm saying WTF?!!! at this point.

    How's that old saying go.....if you want something done right.......?
    '03 Tacoma / '12 FJ

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    Default Re: Coolant Flush

    Did you specify a backflush of the block and radiator or just a "flush?" Simetimes you have to get very specific with these guys.

    Even so, the tap water answer would turn me away too.
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    Default Re: Coolant Flush

    Just goes to show you how the quality of even the most basic vehicle service has gone downhill, even at the "respectable" dealer service centers. People are getting screwed royally every day at dealers...
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    Default Re: Coolant Flush

    That's strange that they wouldn't use the Toyota pink SLL coolant being that it's pre-mixed and is oddly more expensive than the Toyota red LL coolant. After my efan install, I kept the coolant I drained and used that to refill the reservoir. I put new SLL in the rad.
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    Default Re: Coolant Flush

    Yeah that is why I do my own too. It is simple enough and I can control what gets put into the system. And at 99cents for a gallon of DI water.....it's not a hard choice!
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    Default Re: Coolant Flush

    Quote Originally Posted by Tundradrenalin View Post
    That's strange that they wouldn't use the Toyota pink SLL coolant being that it's pre-mixed and is oddly more expensive than the Toyota red LL coolant. After my efan install, I kept the coolant I drained and used that to refill the reservoir. I put new SLL in the rad.
    I asked them about using the pink and two of the techs were adamantly against it, saying it had Water Wetter in it and that it's notorious for leaking out of any tiny spot it can find .

    I'm kind of surprised that Toyota would mix in Water Wetter, I used to run it in my dirt bikes and there was always a lot of controversy about corrosion and what not. It did make them run a little cooler though.......and it was pink......


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    Default Re: Coolant Flush

    Quote Originally Posted by Highwaylizard View Post
    Did you specify a backflush of the block and radiator or just a "flush?" Simetimes you have to get very specific with these guys.

    Even so, the tap water answer would turn me away too.
    I just told them I was looking for a powered flush and they said that they have a machine with a pump that circulates fluid through the entire system to remove any scaling, corrosion, etc........
    '03 Tacoma / '12 FJ

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    Default Re: Coolant Flush

    I went ahead and mixed up some new distilled water and red coolant yesterday (50/50), drained the radiator and block completely, and refilled.
    '03 Tacoma / '12 FJ

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    Default Re: Coolant Flush

    Been flushing my coolant for years with and using tap water, no issues so far.

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    Default Re: Coolant Flush

    Draining both sides of the block is definately a good idea. I didn't measure, but there's a lot of old coolant in there.
    Any fool can fix it right with lots of money.
    The cool thing to do is fix it right with the least amount of money.

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    Default Re: Coolant Flush

    Where's the drain for the engine block?

    When I flushed my system, I had gallons and gallons of distilled water. Drained the rad and filled with DW. Did this until the water was clear then, drained and fill with 50/50 mixture. That reminds me, I need to flush my system out as well before the summer time heat arrives....

    BTW, I did bottle the fluid I drained and took it to the local hazardous waste site for proper disposal.

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    Default Re: Coolant Flush

    Yea there is. It's about 13.5 qts.
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    Default Re: Coolant Flush

    Quote Originally Posted by dyogim View Post
    Where's the drain for the engine block?

    When I flushed my system, I had gallons and gallons of distilled water. Drained the rad and filled with DW. Did this until the water was clear then, drained and fill with 50/50 mixture. That reminds me, I need to flush my system out as well before the summer time heat arrives....

    BTW, I did bottle the fluid I drained and took it to the local hazardous waste site for proper disposal.
    I did something similar on the RAV4... just filled with DW, ran it, then drained and filled with SLL Pink. The DW came out really clean, so I didn't feel the need to flush any more. The factory fill on the RAV4 was SLL and it was 6 years into its expected 10 year initial life. I figure 5 year intervals with the SLL Pink shouldn't be a problem and doesn't really cost all that much over the time period.


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