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Old 07-07-2019, 01:11 AM
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Small Leak in radiator

Hiii.. Have an 08 JK and just discovered coolant on my driveway seems I have a small leak in my radiator.. Has anyone used BarsLeak liquid aluminum or is there any other recommendations to fix without breaking my bank account 😕

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Old 07-07-2019, 04:40 AM   #2
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I moved the post for you, you should get more replies here.

The best fix is always repairing or replacing the radiator. Having said that I prefer the ginger based stop leak products, many automakers use them on the assembly line. I would try one of those, and get a lower pressure radiator cap. You'll have to hunt around for one and perhaps cross reference it from another older vehicle. You'll need a good parts guy to help, or some creative Web searching.

The lower pressure cap will help by lowering the pressure in the cooling system. The downside is the boiling point of your coolant is lowered with less pressure. That may or may not be a problem. I have done it with beaters that had no overheating problems with success.

Bottom line the proper repair is always best. Good luck.

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Old 07-07-2019, 05:06 AM   #3
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Were you running the AC and have condenser drips does that fluid smell like radiator fluid kind of sweet smelling.

The problem with stop leaks is that they are just a band aid and your adding a mass to you system that it meant to stop up holes and not just the one causing your leak are you sure that it was a leak and not overflow.

Could it have been your water pump weeping?

Is the jeep overheating when you drive it?

Check you overflow tank and all the hoses for cracks or holes.

When it has been sitting and cold I check my overflow tank I do this every day with my work truck we take a black marker and the normal level is marked that way a quick glance shows you if it is low mark the actual fluid level not the hot cold lines on the tank. You can also try that with the Jeep that way you can see how much you loose if any.

Get the Jeep up to temp a 15 minute drive will do that park someplace, shut it off and start looking for signs of a leak with a good flash light if you have a leak you will likely see it dripping.
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