When to Replace Radiator Hoses?

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Thread: When to Replace Radiator Hoses?

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    Default When to Replace Radiator Hoses?

    When do you guys replace your radiator hoses? The hoses on my 05 with about 84,000 miles still look ok, but I'm wondering if I should just go ahead and replace them as preventive maintenance. Thanks in advance for any replies.

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    Default Re: When to Replace Radiator Hoses?

    I have a 2002, but it only has 57,000 miles on it -- with the original radiator hoses. Even though the current hoses seem fine (pliable, consistent thickness, no cracking/glazing), I thought it was time. My order for new upper and lower radiator hoses, 8 new NGK #BKR6EGP spark plugs, and new oil plug drain gaskets from Rock Auto just got dropped off this morning.

    Will be picking up a gallon of Toyota Red coolant from the dealer and will be doing a drain/fill this weekend. The old hoses will be rinsed and saved in the truck box for emergency use.

    BTW: I ordered the above from Rock Auto yesterday at 1200, and they were dropped off at my doorstep at 0800 this morning. THAT'S fast.
    Last edited by Remmy700P; 10-14-2011 at 03:28 PM.
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    Default Re: When to Replace Radiator Hoses?

    I still have my original hoses on my 2000 (12 years old) with 190,472 miles. Every now and then I'll ask a mechanic what he thinks about replacing them, and they all have said there is nothing wrong with mine still. I have wondered when the right time is though.

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    Default Re: When to Replace Radiator Hoses?

    I think that hoses, like rubber belts, are made of much better material than they were 20 years ago.

    I remember when normal PM called for inspection of radiator hoses for cracks or swelling and replace at ~50,000 miles or less. Blown hoses were not that uncommon and I use to carry a big roll of friction tape in my trunk for that reason.
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    Default Re: When to Replace Radiator Hoses?

    Quote Originally Posted by INDYMAC View Post
    I still have my original hoses on my 2000 (12 years old) with 190,472 miles. Every now and then I'll ask a mechanic what he thinks about replacing them, and they all have said there is nothing wrong with mine still. I have wondered when the right time is though.
    That's amazing. Although, I can't recall hearing of anyone posting up a radiator hose failure either.

    Anyone know who manufactures the OEM hose line? (The Rock Auto hoses are Dayco -- Made in good ole US of A)
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    Default Re: When to Replace Radiator Hoses?

    Quote Originally Posted by gnlw View Post
    When do you guys replace your radiator hoses? The hoses on my 05 with about 84,000 miles still look ok, but I'm wondering if I should just go ahead and replace them as preventive maintenance. Thanks in advance for any replies.
    1 billion miles or when they explode. Whichever comes first.
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    Default Re: When to Replace Radiator Hoses?

    I replaced mine at about 95k miles. The stock ones looked in decent shape, but with all the mud that I am in constantly it really dries out rubber parts. Cheap insurance to replace them IMO. I saw what the mud did to my serpentine belt so I figured I'd play it safe.
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    Default Re: When to Replace Radiator Hoses?

    Quote Originally Posted by gnlw View Post
    When do you guys replace your radiator hoses? The hoses on my 05 with about 84,000 miles still look ok, but I'm wondering if I should just go ahead and replace them as preventive maintenance. Thanks in advance for any replies.
    Leave them alone. Second timing belt change is the soonest you should think about replacing them. The quality of the hose material is much, much better than it was 20 or 30 years ago. Only the old timers remember burst hoses.
    Last edited by mibro; 10-15-2011 at 06:19 AM.

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    Default Re: When to Replace Radiator Hoses?

    Quote Originally Posted by Remmy700P View Post
    That's amazing. Although, I can't recall hearing of anyone posting up a radiator hose failure either.

    Anyone know who manufactures the OEM hose line? (The Rock Auto hoses are Dayco -- Made in good ole US of A)
    My hoses are original and I am thinking about replacing them with the next timing belt change.
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    Default Re: When to Replace Radiator Hoses?

    I replaced my hoses and antifreeze when I had the timing belt changed at 95K.

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    Default Re: When to Replace Radiator Hoses?

    I replaced radiator and heater hoses at 12K or so. Nothing wrong with the OEM's, I just have a habit of replacing things
    as mods... (mine are color matched for my engine details)
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    Default Re: When to Replace Radiator Hoses?

    Thanks for the responses. I guess I still have a bunch of miles left on the hoses. Has anyone even heard of modern Toyota hoses leaking?

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    Default Re: When to Replace Radiator Hoses?

    Did an oil change yesterday (BTW Costco has 6 quarts of Mobile 1 synthetic for $28) and when I took off my skid plate I noticed some rust. For awhile now I have been trying to track down the source of a faint smell of radiator fluid. I think my lower radiator hose is leaking. I hope it is the hose and not the bottom of the radiator.

    Click image for larger version. 

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    Default Re: When to Replace Radiator Hoses?

    My radiator had a crack about three years ago, causing coolant to pool up in the skid plate. My hoses are still good though.

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    Default Re: When to Replace Radiator Hoses?

    Quote Originally Posted by Highwaylizard View Post
    Did an oil change yesterday (BTW Costco has 6 quarts of Mobile 1 synthetic for $28) and when I took off my skid plate I noticed some rust. For awhile now I have been trying to track down the source of a faint smell of radiator fluid. I think my lower radiator hose is leaking. I hope it is the hose and not the bottom of the radiator.

    Click image for larger version. 

Name:	Rust on Skid Plate.jpg 
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    I'd suggest leaving the skidplate off, and the next time you drive it, have a large piece of clean cardboard handy to put under there after you park it. The system should still be under significant pressure due to heat, and the leak location should show pretty quickly.
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