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Old 06-03-2013, 09:27 PM   #1
Join Date: Jun 2011
Posts: 8
Radiator leak after serpentine belt replacement?

97 TJ 4.0 -
Replaced the serpentine belt this weekend, went on pretty smoothly, seems like it's the right tension, but this morning after arriving at work I noticed a small leak from the radiator cap. Could it be related to the belt replacement?

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Old 06-03-2013, 10:46 PM   #2
Dusty Rhodes's Avatar
Join Date: May 2012
Posts: 300
Probably not. Take off the cap and check to make sure theres no gunk on the gasket or the radiator neck flange. Is the coolant bottle showing hot level and cool level when appropriate? Any different temp gauge reading?

Its the PG 13, not the AR-15.
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Old 06-03-2013, 10:48 PM   #3
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Join Date: Oct 2010
Location: Mississippi
Posts: 111
If you put to much pressure on the Radiator while leaning over maybe? Or hit with a tool.
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Old 06-04-2013, 12:17 AM   #4
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Join Date: Mar 2013
Posts: 396
Originally Posted by Jeepfreak83 View Post
If you put to much pressure on the Radiator while leaning over maybe? Or hit with a tool.

Elbows on top tank while straining to get belt on and manipulate the tensioner
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Old 06-05-2013, 06:39 AM   #5
Join Date: Jun 2011
Posts: 8
Definitely didn't hit it with a tool. Temp guage reads normal. Coolant bottle looks good, was a little low at cold but not down to the add line. I'm a pretty tall guy with long arms so I was able to get in there pretty easily and replace the belt so I doubt I put much if any pressure on the radiator. The belt seems like it had the right amount of play in it but I went ahead and loosened it up just a bit. Drove it home and back to work the next day with no leaking so it may have been just an anomaly. Guess I'll just keep an eye on it for now.
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