Major and sudden radiator leak?

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ansys
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Major and sudden radiator leak?

Post by ansys »

So... this happened. I pulled into the garage, and I noticed the car was pissing down coolant pretty quickly from the bottom (and rear?) of the radiator in what seems like two spots. The drain plug at the bottom was dry and seemed fine. Did the thing just burst on me and all I need is a new radiator? I'm kind of surprised it was pouring out that quickly

I've read a few things online about a broken water pump leading to this kind of failure, but I'm having trouble understanding how a broken pump in the back would lead to a bursting radiator in the front.

I should add that I never noticed the temperature gauge overheating at any point, though the engine seemed to be running a little rough a day or two before this happened (I had been trying to monitor the temp gauge).

Any thoughts/insights are most appreciated!
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Benckj
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Re: Major and sudden radiator leak?

Post by Benckj »

Wont really know where the leak is until you investigate location. Most likely place is the lower radiator hose but anything can fail given its age condition and internal pressure. Once you locate exact failure point you can remove & repair or replace the component. Then its probably time to flush and replace coolant given that it looks like there is limited antifreeze in mix from picture taken. Remember having proper antifreeze mix is important as it also raises boiling point and provides essential anti corrosion properties to the fluid.
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GDII
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Re: Major and sudden radiator leak?

Post by GDII »

Lower radiator hose? They both sit at the same height.

Pop the radiator cover off and take a look to see any traces of leaking around the radiator.
1990 SW20 MR2 G-Limited (GEN4 3SGTE swap early stages)
1996 AE101 Corolla Sprint NZ New Daily
1990 EP81 Starlet XL (Sold)
1990 EE90 Corolla XL (Sold)
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tw2
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Re: Major and sudden radiator leak?

Post by tw2 »

The radiator cores can rot out. If you need a new one I would recommend having the original rebuilt, they are made of better materials than the aftermarket ones and fit perfectly of which the aftermarket ones rarely do.

Otherwise you can get aftermarket silicon radiator hose kits from lots of places. You can see half the radiator from under the car without removing anything, just jack it up and pour water in.
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GDII
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Re: Major and sudden radiator leak?

Post by GDII »

tw2 wrote:
Sun Oct 10, 2021 12:30 pm
The radiator cores can rot out. If you need a new one I would recommend having the original rebuilt, they are made of better materials than the aftermarket ones and fit perfectly of which the aftermarket ones rarely do.

Otherwise you can get aftermarket silicon radiator hose kits from lots of places. You can see half the radiator from under the car without removing anything, just jack it up and pour water in.
The aftermarket ones fit fine but are all based on the turbo powered MR2 and Auto NA. If you have an NA manual that is where you have issues. Although I have seen a few interesting mounting issues which should not be a problem regardless of turbo and auto or na manual.
1990 SW20 MR2 G-Limited (GEN4 3SGTE swap early stages)
1996 AE101 Corolla Sprint NZ New Daily
1990 EP81 Starlet XL (Sold)
1990 EE90 Corolla XL (Sold)
Instagram https://www.instagram.com/sw20glimited/

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