all muffler and exhaust questions go here!!!!!!
#4876
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Join Date: May 2018
Location: Phoenix Arizona
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Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
Downpipe
Hey so I'm pretty well knowing when it comes to exhaust questions. So instead of making a new thread for your question post it here and I or someother people will answer it for you...or pm me if u need a question answered right now like an emergency. Other then that I'm mostly on everyday. So post up some questions. From what to look for in a new muffler. Or to troubleshooting questions. Thanks all lets see those posts
#4877
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Year: 1998
Model: Cherokee (XJ)
Engine: 4.0 L Inline 6
Exhaust Manifold
Just like every other XJ exhaust manifold, mine is cracked.
So I am looking for the best replacement exhaust manifold, for my 98 Jeep Cherokee.
I've been looking around but i just can't seem to find the right one.
Anyone know of a good replacement manifold?
So I am looking for the best replacement exhaust manifold, for my 98 Jeep Cherokee.
I've been looking around but i just can't seem to find the right one.
Anyone know of a good replacement manifold?
#4878
No, I don't lick fish.
"Best" as in.....?
#4879
Exhuast
Hey so I'm pretty well knowing when it comes to exhaust questions. So instead of making a new thread for your question post it here and I or someother people will answer it for you...or pm me if u need a question answered right now like an emergency. Other then that I'm mostly on everyday. So post up some questions. From what to look for in a new muffler. Or to troubleshooting questions. Thanks all lets see those posts
#4880
No, I don't lick fish.
Exhaust tips are pretty much "universal" and if they don't fit, it doesn't take much to modify the tailpipe to get it to fit - so yes.
#4881
Exhuast
[QUOTE=Basslicks;3493830]Gibson makes a cat-back exhaust system for the Jeep Cherokee - so yes.
Exhaust tips are pretty much "universal" and if they don't fit, it doesn't take much to modify the tailpipe to get it to fit - so yes
Thank You
Exhaust tips are pretty much "universal" and if they don't fit, it doesn't take much to modify the tailpipe to get it to fit - so yes
Thank You
#4883
Junior Member
Join Date: Nov 2017
Location: Midwest
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Year: 1998
Model: Cherokee(XJ)
Engine: 4.0 I6
I just replaced my head, new gaskets all around. Everything went together pretty smoothly but I seem to have a small exhaust leak from the back side of the engine on the manifold side. I'm guessing I didn't get the bolts back there tight enough. I torqued what I could to factory specs but there is no way I'm getting my torque wrench on some of those bolts.
How tight is too tight? The gasket is pretty sturdy, but I don't want to mess it up.
98 xj, 4.0 i6, new clearwater head.
How tight is too tight? The gasket is pretty sturdy, but I don't want to mess it up.
98 xj, 4.0 i6, new clearwater head.
#4884
CF Veteran
Join Date: Oct 2013
Location: Greenville, SC
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Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Originally Posted by VoluntaryXJ
I just replaced my head, new gaskets all around. Everything went together pretty smoothly but I seem to have a small exhaust leak from the back side of the engine on the manifold side. I'm guessing I didn't get the bolts back there tight enough. I torqued what I could to factory specs but there is no way I'm getting my torque wrench on some of those bolts.
How tight is too tight? The gasket is pretty sturdy, but I don't want to mess it up.
98 xj, 4.0 i6, new clearwater head.
How tight is too tight? The gasket is pretty sturdy, but I don't want to mess it up.
98 xj, 4.0 i6, new clearwater head.
#4885
No, I don't lick fish.
There's actually a torque step-up and tightening sequence...
http://www.lunghd.com/Tech_Articles/...rque_Specs.htm
http://www.lunghd.com/Tech_Articles/...rque_Specs.htm
#4886
I have a 2000 xj with 160k miles that i purchased new and have never changed any components of the exhaust system. I don't see any rust or cracks and is still pretty quiet but think maybe it's time to test the exhaust pressure.
My question is, if the meter test results in significant back pressure which cat do i need to change out, the two pre-cats or the main one under the body.. or both?
Thanks.
Alex
p.s. i'm in florida, no emission testing but want to keep it stock and the check engine light off.
My question is, if the meter test results in significant back pressure which cat do i need to change out, the two pre-cats or the main one under the body.. or both?
Thanks.
Alex
p.s. i'm in florida, no emission testing but want to keep it stock and the check engine light off.
Last edited by guzzinerd; 06-05-2018 at 08:32 PM.
#4887
No, I don't lick fish.
I honestly have no idea how you'd isolate which of the 3 cats that would be causing an issue without pulling off each one and testing them individually since they all dump into one pipe. That being said, if you're going to that much trouble, you might as well just replace them anyway.
If you've put 160k miles on the Jeep without replacing any of the components, it wouldn't hurt to just go ahead and replace them... especially if you've noticed any drop in gas mileage.
If you've put 160k miles on the Jeep without replacing any of the components, it wouldn't hurt to just go ahead and replace them... especially if you've noticed any drop in gas mileage.
#4888
Catalytic converter?
Someone has probably already asked. My cat has that rattling noise inside. Can I just cut it open and pull the insides out and weld it back up with no problems? If so how loud does this make my jeep? I have a stock 96.
#4889
CF Veteran
Join Date: Oct 2013
Location: Greenville, SC
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Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Originally Posted by BlackJeepOfTheFamily
Someone has probably already asked. My cat has that rattling noise inside. Can I just cut it open and pull the insides out and weld it back up with no problems? If so how loud does this make my jeep? I have a stock 96.
#4890
You can do that, but you won't pass emissions if your state has that, and I'm not sure what year they started putting an o2 sensor in/behind the cat, but you may get a check engine light also. I can't comment on the loud side of things. I did remove the cat from my Comanche, but it had a stock style muffler and I really didn't notice much difference especially when driving couldn't tell anything.