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Unread 01-28-2014, 07:29 AM   #1
05kjsport
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2005 KJ Liberty 
 
Join Date: Nov 2012
Location: North Olmsted, OH
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05 kj sport 4x4 3.7 oil leaks

My wife's libby has been leaving a couple spots on the garage floor lately and I would like to ask the experts if I am correct in my diagnosis. She has 136,000 on her and the first leak i spotted was after replacing the water pump, after looking underneath to make sure the coolant leak was gone I noticed there is a small drip of oil coming from between the harmonic balancer and the front of the oil pan it looks to me like the crank seal anyone had this issue? The second round of drips are coming from the front axle, on the passenger side there is a steady drip coming from where the axle shaft enters the axle housing looking from underneath the drip is visible on the round carrier that mates the shaft and housing, my guess is the axle oil seal anyone had this one? And last the front pumpkin is leaving a small dot on the ground obviously this one is the easiest of the bunch. The only leak that has left a big enough puddle on the ground to scare me is the axle shaft and being that here in ohio we are getting hammered with weather the four wheel drive is being used alot. Any help is greatly appreciated thank you!

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Unread 01-28-2014, 08:38 AM   #2
tjkj2002
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The front crank seal is easy to replace,but it does require a special puller to remove the crank pulley.It's a $10 seal at the dealership.

The diff seals are a bit more involved,the pinion seal has a specific procedure that if not followed can destroy the front diff but the axle seals are not that bad but you must remove the CV axle to replace.
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Unread 01-30-2014, 07:27 PM   #3
05kjsport
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It is the passenger side axle seal that is leaking, anyone have a write up on it? The pinion seal is fine it looks like the drip is coming from the pumpkin gasket.
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Unread 03-30-2014, 06:25 PM   #4
Jcode68
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Came across this thread, funny that my daughters 06 Liberty has the same 2 leaks after changing her water pump. The leak that is between the crankshaft and oil pan appears to be leaking coolant, does this sound right? I rechecked the water pump for. Leaking gasket since it sits right above the crank, but I cannot for the life of me find a leak. Any luck fixing your crank leak? Also looking for a procedure for the axle seal replacement as mine is leaking as well.
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Unread 03-30-2014, 07:59 PM   #5
02blue
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2002 KJ Liberty 
 
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Shouldn't be coolant leaking from the crank seal. Would only be oil at that point. I'd suspect the water pump. What brand pump did you use and can you see the weep hole near the WP shaft?. Any noise? Could be a defective pump. I had a well known rebuilt one fail after a few months due to a bearing defect and spewed out the weep hole not the gasket. Would run down and show where you see it.
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Unread 03-31-2014, 05:17 PM   #6
Jcode68
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If the weep hole is on the bottom side of e water pump, then no I cannot see it. It has to be the water pump gasket failed to seal. The pump is brand new, started leaking the day after i installed it (aftermarket from Advanced Auto). I am going to buy a new Felpro gasket and redo it this weekend. Anyone suggest using an RTV sealer combined with the gasket? It's actually a rubber gasket, like an O ring so I put it on dry. I scraped and cleaned the surfaces really well but still got the leak. PITA.
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Unread 03-31-2014, 06:22 PM   #7
02blue
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Shouldn't need any RTV. I've heard of people using some but I'd use it very sparingly if at all. The big O-ring is like a crush gasket. Did you follow the proper torque and criss-cross when you tightened it down? I'd do like you plan and try a new "gasket".
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Unread 04-02-2014, 08:02 PM   #8
Jcode68
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Yes I definitely did a cross cross pattern and torqued them evenly, although didn't use a torque wrench, just snugged them up tight. I also scraped the surface before installing, but I did not wipe down with brake clean or scuff with scotch bright like I usually do. Will go through more meticulously this time and clean really well and torque to 40 lbs and hope that does it.
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