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flagmichael
The Car Care Nut
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Comments by "flagmichael" (@flagmichael) on "Toyota Cooling System Bleeding for V6 2GR-FE 3.5L THE RIGHT WAY!" video.
The first gen Prius has a pair of bleeder valves for the inverter coolant. I have noticed it will not bleed the way the manual shows (pipes carrying the coolant back up to the reservoir) - it has to be done with tubing to siphon the coolant to somewhere below the valves.
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@TheCarCareNut I googled "Top Secret" to find a store and a pair of men in dark suits and even darker glasses came to my door. Then my house guest, Eugene Palmer, walked into the room. That was when things went horribly wrong. (jk) https://www.fbi.gov/wanted/topten/eugene-palmer Your videos always lead to adventure!
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Lots of great explanations of all sorts of modern car technology - always worth watching.
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I buy almost exclusively used cars - in 51 years I have only had three new ones, and except for the 2002 Prius they were among the most troublesome cars I have owned. Anyway, when I look at a used car I have learned to make two checks most people don't do. I look at the oil dipstick above the full line for varnish (which indicates a steady diet of conventional oil or poor oil maintenance) and I verify the coolant is the right color at least and is not cloudy at all. That said, most coolant today is HOAT and usually has a replacement interval of 10 years. Fine for Fords and Chevys without coolant changes, but Toyotas generally last a lot more than ten years.
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Shouldn't it be pink? Toyota changed from the red Long Life Coolant sometime before 2006 (The CCN will remember when.)
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Many modern cars are not self-bleeding. One of the generations of Subaru engines a couple decades ago had problems with this and many enthusiasts blamed failure to purge air as being responsible for most of the head gasket failures. My daughter had a 1993 Honda that would surge at idle if the cooling system was not properly bled. At normal idle the hot coolant would not reach the Fast Idle Thermo Valve (a Honda thing of that era) so the FITV would increase the idle speed. That caused the hot coolant to hit the FITV, which returned the idle to normal.. and the cycle repeated.
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The CCN addresses those in other comments. The block drain (I have never worked on one) apparently is a devil to get to and drains very little, and since there is no heater valve it doesn't matter whether the heater is on or off.
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@metzmatu8409 Be aware the red coolant is OAT instead of HOAT. Half the life - change every five years. The red coolant is for support of the early models (before 2004, IIRC) that came with red coolant in their systems. I do not know for sure if it is okay to replace all red coolant with pink, but I would not replace pink with red. That said, the red coolant is intended to be mixed 50/50 with purified or distilled water. Instructions are on the jug.
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