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Can trapped air bubbles after a coolant flush, cause loss of power? [Solved but Unrelated]

Discussion in '1st Gen. Tacomas (1995-2004)' started by crazytacoman, Oct 16, 2021.

  1. Oct 16, 2021 at 1:10 PM
    #1
    crazytacoman

    crazytacoman [OP] Well-Known Member

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    I recently did a coolant flush, and have been experiencing loss of power. I just finished doing some research, and I think I might have some trapped air in there. Am wondering if it's likely that this is causing the loss of power?

    I have run sea foam through the intake and checked spark plugs. After clearing the air bubbles, and if it continues, I'm thinking of resetting the ECU and doing a compression test.

    Also, (during the coolant flush process) is it bad to not allow the truck to cool down after draining/filling the first and second flushes of distilled water? Hoping it's not some weird thing that affects an old engine. I'm thinking it doesn't matter because I've never seen any specific instructions on letting the engine cool during the process (only at the very beginning to safely remove the radiator cap)
     
  2. Oct 16, 2021 at 1:13 PM
    #2
    super_white

    super_white Well-Known Member

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  3. Oct 16, 2021 at 1:14 PM
    #3
    crazytacoman

    crazytacoman [OP] Well-Known Member

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    Interesting, and that's the tool I used for the flush. Pretty good product
     
  4. Oct 16, 2021 at 1:18 PM
    #4
    INSAYN

    INSAYN Well-Known Member

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    Also, with that radiator funnel suggested above, be sure to have the front of the truck elevated (up on ramps) to facilitate burping the coolant system.

    Coolant bubbles will not cause your engine power loss. A disconnected, shorted or damaged sensor wire/connector could put your truck into a limp mode.
     
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  5. Oct 16, 2021 at 1:44 PM
    #5
    Knute

    Knute Well-Known Member

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    OMG....I hope you used the pink coolant.
     
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  6. Oct 16, 2021 at 2:46 PM
    #6
    super_white

    super_white Well-Known Member

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    :eek:

    I've seen what happens when you mix the "regular" stuff with Dex-Cool, not pretty.
     
  7. Oct 16, 2021 at 6:11 PM
    #7
    Knute

    Knute Well-Known Member

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    True experience.

    We had a '99 Chevy Venture. After a couple years, it began losing coolant. Turned out to be the head gasket. Did a load of research to discover the Dex-Cool was corrosive to the head gasket. We were just weeks out of the warranty. $600 later, I was talking to the service manager about the situation. Specifically regarding the head gasket material. I asked if the material had been changed. Service Mgr said that the gasket was thicker. I asked again about the material. Service Mgr said, "Same material just thicker." o_O Meaning the same issue would rise again, but take longer....... We drove around front to the Sales area and traded it for our '02 Chevy TrailBlazer, but only after checking on the head gasket material. TrailBlazer has over 120,xxx miles, engine has had zero issues and we are still driving it.

    The point. Use the correct coolant for your engine. Mixing could result in failures. In our case, it was a mix of incompatible materials.
     
    Last edited: Oct 16, 2021
  8. Oct 16, 2021 at 6:52 PM
    #8
    crazytacoman

    crazytacoman [OP] Well-Known Member

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    Yes.. after about a year of using the ACDelco dex cool, I finally got some time to flush it out and replace it with the toyota pink coolant.

    I was thinking the issue was engine related, because it appeared right after the coolant change. But when I checked the transmission fluid level, I saw that it was low. I filled it up and added some lubegard, and now the truck feels like it used to. The low end torque that I love on this thing is back!

    Lol, but I hope I didn't damage the transmission (before I realized the oil level was low) because I did step on the gas real hard a few times in attempts to get it to maybe "wake up" and to maximize the effects of the seafoam treatment. Here's to hoping everything stays good for a good while now
     
    Last edited: Oct 16, 2021

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