Oil dripping on the exhaust causing a nasty smell. - JeepForum.com
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post #1 of 4 Old 04-22-2013, 06:16 PM Thread Starter
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Location: Kent, WA
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Oil dripping on the exhaust causing a nasty smell.

So a while ago I was smelling fumes in the cabin. At certain angles I could see smoke sometimes on the passenger side.

I looked at the fuel lines and hoses and couldn't find anything. I did notice a small oil drip on the ground and noticed oil marks around the exhaust especially where the catalytic converter connects. Here's a pic.

I've tried to feel around up there but I can't feel any holes or anything. I'm not very knowledgable about cars other then I can follow instructions pretty well. But what should be my next step to find where the oil is leaking from?

I also noticed alot of oil near the electrical plugs on the cat.

Any help or speculations are really really appreciated. Thanks!

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post #2 of 4 Old 04-22-2013, 07:07 PM
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The valve cover gaskets are leaking - a common issue with the 3.7L engine with the stamped steel valve covers. The leak is typically at the lower, rearmost bolt location - which is right above the cats.

The gasket replacement isn't technically but does require a decent assortment of tools and some mechanical experience. I got a quote from my local dealer for the passenger side (the more difficult side) just for giggles and they wanted $220! An independent shop I'm sure would charge less.


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post #3 of 4 Old 04-22-2013, 07:28 PM Thread Starter
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Awesome. Thanks Bob for the info!
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post #4 of 4 Old 04-23-2013, 12:56 PM Thread Starter
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The first quote I got from a dealership was a little over $300. I'm going to call a couple of other local/trusted shops and see what they say but I might try it out myself.

I was reading this writeup on changing the valve cover gaskets.
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fumes , oil leak

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