Radiator hose exploded

Krbranst

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Jun 1, 2022
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Louisiana
Recently replaced my water pump and yesterday I blew my upper radiator hose. Anybody able to provide a possible explanation as to why this might have happened or any other issues that might have caused it or that could now arise since it happened? All my hoses seemed fine before this happened.

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Was your Jeep running hot before it popped? If it was running normal temps (210°) how long did it run before it popped? Without knowing that I’d speculate low on WATER and steam blew it apart. Did it have antifreeze in it?
 
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It was running between 195-210. Drove it about 15 miles in that temp range. Sat for about an hour then drove about 6 miles and it happened. It did have antifreeze in it.
 
How's your head gasket? Worse case you're getting your cooling system over pressurized...

But when you hear hooves think horses...not zebras ...

-Mac
 
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Recently replaced my water pump and yesterday I blew my upper radiator hose. Anybody able to provide a possible explanation as to why this might have happened or any other issues that might have caused it or that could now arise since it happened? All my hoses seemed fine before this happened.

View attachment 342676

The radiator hoses look pregnant to me, which in the automotive hose world means swollen and spongy. A hose may appear good visually but give it a squeeze and you'll be able to feel when it's time to replace a hose. As mentioned previously, a flush is in order!
Look over your belts and hoses and replace as necessary.
 
Looks like your cooling system was never flushed either. My Jeep driven in mud is cleaner than the inside of that hose. :unsure:

Holy crap! Look at all the pieces all over the fan shroud etc!

Yeah, after doing a flush myself this summer big time, this is glaring. There are particles throughout your coolant system.

When was the last time that hose was replaced? And flushed?

I would suggest you pull your thermostat since it’s already drained.

Then put in Thermocure and fill with distilled water.

Run it fir two days here and there etc, time for the stuff to react with rust, which looks like your system was all rust water and particles.

Then drain and the block too. Fill with distilled and run it fir 2 minutes, and drain again and repeat until clear.

Then put a new Thermostat in and fill with 50/50 Zerex HOAT.
 
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From the looks of the rusties laying on top of things Id say it was the hoses way of telling you you did a shit job of flushing out the system.
 
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Once you replace the hose(s) be sure to thoroughly wash the entire engine compartment with clean water to get rid of all the coolant. Wiring and other rubber bits hate long term exposure to coolant.
 
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How's your head gasket? Worse case you're getting your cooling system over pressurized...

A head gasket can do this, but you'll usually see a full overflow bottle and signs that it was overflowing. If you see those, have your system pressure-checked after you fix it and before you drive it.
 
The radiator hoses look pregnant to me, which in the automotive hose world means swollen and spongy. A hose may appear good visually but give it a squeeze and you'll be able to feel when it's time to replace a hose. As mentioned previously, a flush is in order!
Look over your belts and hoses and replace as necessary.

Holy crap! Look at all the pieces all over the fan shroud etc!

Yeah, after doing a flush myself this summer big time, this is glaring. There are particles throughout your coolant system.

When was the last time that hose was replaced? And flushed?

I would suggest you pull your thermostat since it’s already drained.

Then put in Thermocure and fill with distilled water.

Run it fir two days here and there etc, time for the stuff to react with rust, which looks like your system was all rust water and particles.

Then drain and the block too. Fill with distilled and run it fir 2 minutes, and drain again and repeat until clear.

Then put a new Thermostat in and fill with 50/50 Zerex HOAT.

Once you replace the hose(s) be sure to thoroughly wash the entire engine compartment with clean water to get rid of all the coolant. Wiring and other rubber bits hate long term exposure to coolant.

Thanks guys. Much appreciated.
 
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If only they did lol. My main concern is if that hose blowing might have caused any other problems or if there is anything else I need to look at when I replace it.

What year is the Jeep? How many miles on it? How long have you had it? Any cooling system maintenance history?

If it were me I would count this as a blessing I didn’t overheat the engine and do a full cooling system overhaul.
 
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