all muffler and exhaust questions go here!!!!!!
Senior Member
Joined: Aug 2010
Posts: 893
Likes: 0
Model: Cherokee
so to change the subject a tad. how the hell do you know if the kitty is workin or not, plugged up or not?? ya, dont go in the gutter guys.. LOL seriously though, bought a jeep from a city feller who drove it around town mostly.... a long road trip now and then. when I step on it on the freeway it feels like its tryin real hard to push out the exhaust. otherwise it seems fine. thinkin at higher rpm and whatnot it wont flow right. so lookin for opinions. thanks.
Is the cat red?
Egg smell by tail pipe?
I didn't have any of this, and all 3x with three of my jeeps the cat was bad. If you have over 120k, just replace it if your worried. Their only $60
Seasoned Member
Joined: Oct 2012
Posts: 444
Likes: 0
From: CA
Year: 1990
Model: Cherokee
Engine: 4.0L Inline 6
aight gguys. i have a question for ya. last weekend on my birthday and the day i got laid off. My jeep cut out on me. started it back up and it shot out the black plume o death smoke out the exhaust... any ideas?
Senior Member
Joined: Nov 2012
Posts: 777
Likes: 1
This will sound crazy but I cut out my muffler and drive it for a few days and my oil pressure increased I just put on a glasspack and it decreased? Am I imagining things or does the increased exhaust flow increase oil pressure?
Seasoned Member
Joined: Oct 2012
Posts: 444
Likes: 0
From: CA
Year: 1990
Model: Cherokee
Engine: 4.0L Inline 6
I already got the answer. i thought this post was ages ago....
Member
Joined: Sep 2012
Posts: 170
Likes: 0
From: pacific northwest
Year: 2000
Model: Cherokee
Engine: 4.0
none of the above with mine, exhaust flows. just feels like under accel something is holding the jeep back like the exhaust, sounds like it struggles a bit. may be normal I dont know. but thanks for the info. might do a cat just because. but hate wasting money
Cherokee Forum Vendor
Joined: Oct 2012
Posts: 613
Likes: 0
From: Fort Dix, NJ :(
Year: 99
Model: Cherokee
Engine: 4ho
Cut the cat off and weld in a straight pipe, if that fixes the problem put on a new cat, if not weld the old one back on. worst case scenario you are out 10 bucks and an hour of work
Seasoned Member
Joined: Oct 2012
Posts: 444
Likes: 0
From: CA
Year: 1990
Model: Cherokee
Engine: 4.0L Inline 6
the big one will send you to error codes everytime
Senior Member
Joined: Aug 2012
Posts: 618
Likes: 0
From: Goshen Ohio
Year: 1993
Model: Cherokee
Engine: I6
Originally Posted by jeeperscreepers92
lol yes i know.the search bar at the top is useless., u actually have to use the search between "New Posts" and "Quick Links"
the big one will send you to error codes everytime
CF Veteran
Joined: Sep 2011
Posts: 10,447
Likes: 0
From: Frederick, MD
Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by 93slayer
Ok so 1996 Cherokee 4.0......
How many o2s and where SHOULD they be?
I have one after cat, welded directly into the pipe......
How many o2s and where SHOULD they be?
I have one after cat, welded directly into the pipe......
Senior Member
Joined: Aug 2010
Posts: 893
Likes: 0
Model: Cherokee
Senior Member
Joined: Aug 2009
Posts: 558
Likes: 0
From: Mildenhall, United Kingdom
Year: 1996
Model: Cherokee
Engine: 4.0L H.O.
On my 96' 4.0 I have one in the dowpipe just after the header, and in just behind the cat welded in. Im almost positive that is factory too.
While im here... I need ideas of which high flow cat to get. I want it to be 2.5'', and stainless.
While im here... I need ideas of which high flow cat to get. I want it to be 2.5'', and stainless.