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Afraid of changing antifreeze

Discussion in '1st Gen. Tacomas (1995-2004)' started by 1996_2.4, Apr 14, 2021.

  1. Apr 14, 2021 at 9:19 AM
    #1
    1996_2.4

    1996_2.4 [OP] Member

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    Forgive the noob question. About the only thing I can do on a car is change oil and sparkplugs. Bought my 96 2.4 Tacoma three years ago and have put 70,000 miles on it and have never changed the radiator coolant. Worried I may crack the plastic radiator when opening the drain bolt, and don't know if I have to "burp" the air out of the block on these cars.
    Should I take it to a mechanic and pay $120 for labor, or pay the kids at Jiffy Lube to do it? It's a big question because I'm broke with medical bills and this car is all I have to get me to work. I'm afraid to leave the worn out coolant in, but afraid I'll make things worse by doing it myself.
    Some advice:
    1- How many one gallon jugs of coolant do I need to flush and refill the entire 2.4 system?
    2 - DO you have to burp air pockets out of this engine?
    3 - Is there a danger of cracking the plastic radiator when opening drain bolt?

    Thanks for your time and help
     
  2. Apr 14, 2021 at 9:29 AM
    #2
    JJ04TACO

    JJ04TACO Well-Known Member

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    If you are worried you can remove the lower radiator hose. It will be messy...er. As for how much coolant, 2 gallons should be enough. Buy premixed, or pay a bit less and mix your own with distilled water. If you are concerned about getting out as much fluid as possible you can start the truck for a few seconds to see if you can pump some fluid left in the block out and into the radiator for removal. But you'll never get it all. Fill the reservoir and keep checking it to see if it gets low and check the radiator after you drive it and it cools down to see if it's at the top.

    As for burping it, you can if you need to. Feel the top hose to see if it is getting warm.
     
  3. Apr 14, 2021 at 9:31 AM
    #3
    1996_2.4

    1996_2.4 [OP] Member

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    Thanks. I never thought about just removing the hose. How do you burn to get air out of the system?
     
  4. Apr 14, 2021 at 9:31 AM
    #4
    1996_2.4

    1996_2.4 [OP] Member

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    I mean burp to get air out of the block?
     
  5. Apr 14, 2021 at 9:34 AM
    #5
    JJ04TACO

    JJ04TACO Well-Known Member

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    You can squeeze the top hose gently with the radiator cap off to try to force air out of the hose and into the radiator. If you squeeze it too hard and fast you can force fluid out of the top of the radiator. I'd let the engine run for a few minutes while feeling the hose to warm up indicating that you have fluid flowing through it.
     
    1996_2.4 [OP] likes this.
  6. Apr 14, 2021 at 9:36 AM
    #6
    Matic

    Matic The "OFG" Baby!!!

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    I had my entire coolant system flushed by a dealership for I think $200.
     
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  7. Apr 14, 2021 at 9:41 AM
    #7
    Wyoming09

    Wyoming09 Well-Known Member

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    Get the radiator as high as possible some people will go so far as to jack up the front of the vehicle.

    These engines are not near as bad as the 22r series for air pockets.

    if things are that old maybe time for new hoses as well.
     
    0xDEADBEEF likes this.
  8. Apr 14, 2021 at 9:43 AM
    #8
    0xDEADBEEF

    0xDEADBEEF Segmentation Fault (Core Dumped)

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    I just parked mine on a hill, nose up. Worked great.

    At 25 years old, make sure you inspect that radiator really well for cracks and stuff. I'd be tempted to just replace it as a failure can get expensive in a hurry. Hoses too.
     
  9. Apr 14, 2021 at 10:26 AM
    #9
    y=mx+b

    y=mx+b Well-Known Member

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    One of these is really helpful for burping: https://www.amazon.com/OEMTOOLS-870...417578&sprefix=no+spill+funnel,aps,272&sr=8-6.

    Clips onto an included rad cap adapter and you can fill the funnel like a reservoir, then burp bubbles up into there. It will be the highest point and all bubbles will get up there. Once burped, insert the plunger into the funnel and remove it from the rad cap adapter. Then remove rad cap adapter and put the regular rad cap on. Bingo: all burped
     
  10. Apr 14, 2021 at 11:15 AM
    #10
    Area51Runner

    Area51Runner Well-Known Member

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    https://youtu.be/oQsxmi-CNng
     
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  11. Apr 14, 2021 at 11:26 AM
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    Samslop

    Samslop New Member

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    Test it first it might still be good.
     
  12. Apr 14, 2021 at 11:54 AM
    #12
    Xbeaus

    Xbeaus Well-Known Member

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    It's pretty easy. I used about 10 gallons of distilled water to flush and rinse it out before putting some pre-mix in there. The trick is - finding a place to properly dispose of the old antifreeze. Shit you not - I called our local garbage dump and the gal on the phone said "you got cats? Just mix all the antifreeze with some of the old litter and throw it away. They'll never notice". lol I found a local oil change place that actually takes it and are the only one in my down that does.
     
  13. Apr 14, 2021 at 11:58 AM
    #13
    eon_blue

    eon_blue Unknown Member

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    Wow that's shady lol. Luckily we can take used fluids to the parts stores around here. At least I think we can with coolant...

    I thought you were gonna say that she was telling you to poison your cats with it, was gonna say that's real F'ed up
     
    y=mx+b likes this.
  14. Apr 14, 2021 at 2:38 PM
    #14
    JJ04TACO

    JJ04TACO Well-Known Member

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    Theres Timmeh to the rescue! I always forget about Timmy.

    Shops around here will usually take it if it’s not crazy amounts. Beats pouring it into the soil like I saw as a kid.
     
  15. Apr 15, 2021 at 1:38 PM
    #15
    L78

    L78 Well-Known Member

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    I just did my 95 Tacoma 2.7 a few months ago...

    mid you drain the radiator and block you’ll remove a lot more of the old coolant during each cycle... I drained 3 or 4 times, each time, refilling with ONLY distilled water.

    then after the final drain, I filled with the concentrated coolant ( I can’t believe how much they charge for pre mixed 50/50, ridiculous).

    with some “coolant”. Still the the block after the last flush, I figured that the concentrate was better anyway...

    after a gallon on coolant, I added some distilled water until it was topped off.

    I used that funnel system someone posted above. Worked great to burp the system during each fill...


    It was difficult to find concentrated coolant, all the stores sell 50/50 (more profitable).

    kind of wish I had changed the hoses too, but the are still in nice shape...

    Timmys Videos are great
     
  16. Apr 15, 2021 at 8:35 PM
    #16
    4xdog

    4xdog Well-Known Member

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    Be sure you use Toyota red coolant or equivalent.
     
  17. Apr 16, 2021 at 6:33 AM
    #17
    Xbeaus

    Xbeaus Well-Known Member

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    That would be bad! I like my kitties dammit! lol
     
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  18. Apr 16, 2021 at 3:11 PM
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    slodoug

    slodoug Well-Known Member

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    hijacking this thread, getting ready to change my radiator in June, my hoses look great, should i replace them anyway?
     

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