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Coolant drain & Fill

Discussion in '2.5 Gen Tundras (2014-2021)' started by Franco4x4, Jul 21, 2025 at 7:06 PM.

  1. Jul 21, 2025 at 7:06 PM
    #1
    Franco4x4

    Franco4x4 [OP] New Member

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    Hello everyone, I completed a coolant drain and fill on the radiator and passenger side engine block. I think everything went smooth even on a test drive. My only concern is I topped the coolant reservoir to the full line. Today after work I noticed that the coolant went down about a 3rd is this normal? Should I fill it back up to full? I looked everywhere and didn’t see any coolant leaks. Thank you
     
  2. Jul 21, 2025 at 7:10 PM
    #2
    WhiteSR5

    WhiteSR5 New Member

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    Normal. Top it up to Full and recheck over the next few drive cycles.
     
    Franco4x4[OP] and ZappBrannigan like this.
  3. Jul 21, 2025 at 7:12 PM
    #3
    ZappBrannigan

    ZappBrannigan The mind is willing but the flesh is weak

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    Yep, you’re gonna have spots with trapped air that work themselves out.
     
    Franco4x4[OP] likes this.
  4. Jul 21, 2025 at 7:32 PM
    #4
    Franco4x4

    Franco4x4 [OP] New Member

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    Thank you guys. I was stressing a little bit.
     
    ZappBrannigan likes this.
  5. Jul 22, 2025 at 3:49 AM
    #5
    Retired...finally

    Retired...finally Utilizing that doctorate of procrastinatory arts

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    Might consider waiting until the engine is at ambient temperature and topping off through the radiator cap.
     
    Hbjeff likes this.
  6. Jul 22, 2025 at 7:48 AM
    #6
    beeowengee

    beeowengee New Member

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    Just LEDS for now
    Normal it just BURP. LOL
     

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