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Old 10-10-2009, 08:38 PM
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Exhaust In Cab

Last night when coming home from work,
I noticed a strong exhaust smell coming into the Cab while I had my vents on.
Only thing I can think of would be a cracked manifold.
As to why, I'm unsure.

What do you all think?
Any easy fixes for this?

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Old 10-10-2009, 08:47 PM   #2
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If the manifold is cracked you´ll need a new one.

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Old 10-10-2009, 09:25 PM
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Think it could be welded?
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Old 10-10-2009, 09:35 PM   #4
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you can try that. but most of the times it crackes again beside the weld seam.
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Old 10-10-2009, 09:45 PM
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Well...think I'll have to try that first.
(if I can find the damn leak that is)
Don't have much cash to spare right now.
I've heard that's it's a common problem with 98's.
Any idea as to why?
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Old 10-10-2009, 09:48 PM   #6
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It´s a problem with all I6 engines in YJs and TJs.
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Old 10-10-2009, 09:53 PM
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Old 10-11-2009, 11:29 AM   #8
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The I6 header expands and contacts too much with heat, even aftermarket headers do. (Don't buy Borla, I already made that mistake) My headers are also cracked, one way to check is to go to autozone, buy some Seafoam and pour it into your throttle body (it feels wrong to do lol) and watch under the hood for smoke coming out somewhere on your headers. Just have a buddy in your car ready to rev the engine to keep it from dying as you pour it in. That's how I found my exhaust leak.

Also I have done some research online and the best alternative headers are some $70-$80 eBay ones with flexible joints in them to let the headers expand and contract. A lot of people on Jeepforum have bought them and have nothing but good things to say about them.

Plus, taking out your headers is kind of a bitch, I thought about pulling mine and welding them too but if I'm just going to be in there removing them again, I might as well replace them.
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Old 10-11-2009, 03:20 PM
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Thanks for the info.
Sounds like a good way to track the leak.

Think the guy I bought it from already put those flexible headers in there though. And he only had it for 4 years. Not good.
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Old 10-14-2009, 01:24 PM   #10
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Quote:
Originally Posted by ExDementia View Post
The I6 header expands and contacts too much with heat, even aftermarket headers do. (Don't buy Borla, I already made that mistake) My headers are also cracked, one way to check is to go to autozone, buy some Seafoam and pour it into your throttle body (it feels wrong to do lol) and watch under the hood for smoke coming out somewhere on your headers. Just have a buddy in your car ready to rev the engine to keep it from dying as you pour it in. That's how I found my exhaust leak.

Also I have done some research online and the best alternative headers are some $70-$80 eBay ones with flexible joints in them to let the headers expand and contract. A lot of people on Jeepforum have bought them and have nothing but good things to say about them.

Plus, taking out your headers is kind of a bitch, I thought about pulling mine and welding them too but if I'm just going to be in there removing them again, I might as well replace them.
Sound advice...thx
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Old 10-16-2009, 07:00 PM   #11
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x2 Yea definately do the seafoam thing. The only thing I would do differently though is I used the brake booster line instead of pouring directly into the TB. I could regulate the amount alot easier that way without the engine dying. You'll see pretty quickly any kind of exhaust leak you may have. I just replaced my headers not too long ago with the flex kind and it was a pretty easy process that only took about 4 hours, and that was with me taking my time and double checking things and cleaning as I went. Use the writeup ar dailydriventj.com, it gives you all the torque specs and is an excellent writeup with lots of pics.

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