Radiator cap woes. Im stumped




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  1. #1
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    Default Radiator cap woes. Im stumped

    2000 corolla

    This is the radiator spout.

    Genuine cap and generic cap also attached

    Genuine cap is too shallow and doesn't hold pressure.

    Aftermarket cap is too deep and cant be fastened. You cant push it down enough. The diameter is also slightly too big.

    Now what? Im stumped.

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  2. #2
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    Default Re: Radiator cap woes. Im stumped

    Was the radiator not changed?

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  4. #3
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    Default Re: Radiator cap woes. Im stumped

    Where is the cap that was on the radiator? Surely it didn't evaporate?
    2012 Jeep Sahara Unlimited 3.6 V6
    Ela Diablo: Land Rover S2A 109 PUP: SOLD

  5. #4
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    Default Re: Radiator cap woes. Im stumped

    Quote Originally Posted by jelo View Post
    Where is the cap that was on the radiator? Surely it didn't evaporate?
    Same size and shape as the new Toyota one. It also doesn't hold pressure.

    Car never went out of town luckily so it never got hot enough to loose water.

    Fan comes on and off without water coming out if I leave the cap off.

  6. #5
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    Default Re: Radiator cap woes. Im stumped

    Quote Originally Posted by NewLandy View Post
    Was the radiator not changed?
    No. We know the history of the car from new. One owner.

  7. #6
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    Default Re: Radiator cap woes. Im stumped

    You bought the wrong cap, there's more than one type small radiator cap.

  8. #7
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    Default Re: Radiator cap woes. Im stumped

    I suggest you go to Midas and see what options there are and take the closest one to being a decent compromise between too shallow and too deep.
    2012 Jeep Sahara Unlimited 3.6 V6
    Ela Diablo: Land Rover S2A 109 PUP: SOLD

  9. #8
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    Default Re: Radiator cap woes. Im stumped

    This is the radiator part number. Can someone please help me find the correct cross reference to what cap is needed.

    Wrong caps kill engines!

  10. #9
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  11. #10
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    Default Re: Radiator cap woes. Im stumped

    It is not what you buy its what you build.

  12. #11
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    Default Re: Radiator cap woes. Im stumped

    Went to silverton and went through about fifteen caps. Found one that does the job eventually.

  13. #12
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    Default Re: Radiator cap woes. Im stumped

    Quote Originally Posted by MariusFourie View Post
    Went to silverton and went through about fifteen caps. Found one that does the job eventually.
    yep, only way to do it unfortunately

    it's like trying to find radiator pipes that might work on conversions and hybrids
    2012 Jeep Sahara Unlimited 3.6 V6
    Ela Diablo: Land Rover S2A 109 PUP: SOLD

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