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Unread 07-24-2014, 04:52 AM   #1
Bomgart1
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1997 TJ Wrangler 
 
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Location: Marshall, Illinois
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Radiator hose leak issue

Had a radiator leak and it appeared to be the lower radiator hose. So I replaced the hose and installed new clamps as well. It still leaks though... I have tightened the clamp as tight as I can get it and it is still leaking (appears to be from the hose, where the hose connects to the water pump). The strange part is, it only leaks when cooled down. When I drive it, it doesn't leak. Park it in the garage and watch it for 15 minutes, nothing. Go out in the garage in the morning, huge puddle. Not sure what else to do. 97 TJ, 4.0

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Unread 07-24-2014, 06:53 AM   #2
threeb
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Are you positive it's not the water pump?
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Unread 07-24-2014, 06:54 AM   #3
JBTJ
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Sometimes mineral deposits build up on the metal neck of the pump. When the hose fits over it, it can and will leak. Pull the hose back off and inspect the neck and clean off any material that might have built up on it.
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Unread 07-24-2014, 07:23 AM   #4
Bomgart1
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Quote:
Originally Posted by threeb View Post
Are you positive it's not the water pump?
97.3% sure it's not the pump! possibly a cracked neck (2.7%)?
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Unread 07-24-2014, 07:25 AM   #5
Bomgart1
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Quote:
Originally Posted by JBTJ View Post
Sometimes mineral deposits build up on the metal neck of the pump. When the hose fits over it, it can and will leak. Pull the hose back off and inspect the neck and clean off any material that might have built up on it.
I will try that this evening when I get home. I'm thinking my only other option is to replace the water pump ($35 Napa)
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Unread 07-24-2014, 07:32 AM   #6
JBTJ
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Quote:
Originally Posted by Bomgart1 View Post
I will try that this evening when I get home. I'm thinking my only other option is to replace the water pump ($35 Napa)
I would not advise buying a pump from them. Quality is not as good as OEM. Yes, OEM does cost more, but at least you won't have to change it out every several months because it started leaking.
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