Coolant leak from engine above waterpump but not from waterpump - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 5 Old 06-05-2015, 08:36 PM Thread Starter
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Coolant leak from engine above waterpump but not from waterpump

Hello. I bought an automatic 2007 JK Sahara 3.8 with 79000 miles on it about 3 months ago. I just noticed that I have a slow coolant leak coming from my engine. The coolant leak pools up on the flat part of the engine that is above the Water pump then eventually ends up at the oil filter and then on the ground. It's very slow though. Weird thing is there is no leak on or around the actual waterpump. I have attached a picture that I hope will be more helpful than my description.

I also notice a faint whine that seems to stay consistant. It is most noticeable at 20mph. It doesn't make the noise is reverse. Putting the jeep in neutral doesn't make a difference. It doesn't make the noise unless I am moving at least 10mph. Not sure if this started at the same time.

I took off the belt and all of the pullys seem ok. The waterpump isn't loose either.

I have an appointment with the dealer on the 9th but want to try and fix it myself first.

Thanks for any help or insight you can provide!
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post #2 of 5 Old 06-06-2015, 12:31 AM
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Quote:
Originally Posted by jlaco1 View Post
Hello. I bought an automatic 2007 JK Sahara 3.8 with 79000 miles on it about 3 months ago. I just noticed that I have a slow coolant leak coming from my engine. The coolant leak pools up on the flat part of the engine that is above the Water pump then eventually ends up at the oil filter and then on the ground. It's very slow though. Weird thing is there is no leak on or around the actual waterpump. I have attached a picture that I hope will be more helpful than my description.



I also notice a faint whine that seems to stay consistant. It is most noticeable at 20mph. It doesn't make the noise is reverse. Putting the jeep in neutral doesn't make a difference. It doesn't make the noise unless I am moving at least 10mph. Not sure if this started at the same time.



I took off the belt and all of the pullys seem ok. The waterpump isn't loose either.



I have an appointment with the dealer on the 9th but want to try and fix it myself first.



Thanks for any help or insight you can provide!

I had a similar problem and could t isolate the coolant leak on my 07 with 81k on the odometer. The leak went away and I don't have to add coolant any more. Don't take it to the dealer unless you have to and do yourself a favor and find a trustworthy mechanic. I was losing less then a 4oz of coolant each month so I didn't really give a crap. Todd at jeep speed shop may have some advice for you if you give him a call.

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post #3 of 5 Old 06-06-2015, 04:31 AM Thread Starter
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Ok thanks for the info Scardup. I'll keep an eye on it and keep troubleshooting. I've been reading that it could be the intake manifold gasket leaking. Anyone else ever have this happen and manage to pin point the root cause?
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post #4 of 5 Old 06-06-2015, 05:59 AM
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Intake manifold gasket

that is the intake manifold gasket leaking. eventually it will get worse and leak more and need replacing . i just replaced mine myself ($20 gasket $20 coolant) and one Saturday to get it done.
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post #5 of 5 Old 06-07-2015, 05:04 AM Thread Starter
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Thanks for the confirmation donut707. Was it pretty straight forward? Does anyone have a link to a good "how to" or some basic instructions? Got a quote for replacing the manifold intake gasket yesterday for $628 plus tax so I'll be knocking this little project outout myself.

Thanks again.
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