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XJ Ask the Question Thread
CF Veteran
Joined: Dec 2010
Posts: 1,246
Likes: 1
From: Missouri
Year: 1998
Model: Cherokee
Engine: I6 4.0 L
Originally Posted by Customizer1000
Yep
Originally Posted by Nperryman
Would I be better off going with an aftermarket stereo? I heard they get a lot better sound quality and that if you dont get an aftermarket stereo head unit, then you have the risk of damaging your speakers because of not enough power coming from the stock stereo or atleast it sounds bad with a stock stereo turned up loud, is any of that true?
CF Veteran
Joined: Dec 2010
Posts: 1,246
Likes: 1
From: Missouri
Year: 1998
Model: Cherokee
Engine: I6 4.0 L
Originally Posted by Customizer1000
Aftermarket is def a better quality, the radios have more power which in turn make better sound at higher volumes, factory radios lack power for aftermarket speakers, therefore when turned up it sounds bad causing speakers to clip, that is bad on speakers
Originally Posted by MyHeart
How do I get NOX lowered to pass emissions after fuel injector fluid made NOX go up very high?..Retest cold engine for NOX?..Should I change oil first? Sorry I should have said questions.
Member
Joined: Dec 2009
Posts: 207
Likes: 5
From: South Jersey
Year: 2001
Model: Cherokee (XJ)
Engine: 4.0L I6 Power Tech
https://www.cherokeeforum.com/f59/he...0/#post1038834
Your higher NOX levels will probably return to their previous levels after you burn through this tank of gas. In one of your other posts, you stated that you had gotten the NOX levels down to 1147. What level is passing in your state?
In the above mentioned post, you can see there are quite a few things that can cause high NOX levels. Getting your codes read is the first thing you should do. In your first thread, you said you have a '91 Cherokee, and that your "key switch doesnt blink", which sounds like your Check Engine Light (CEL) might be malfunctioning. Do you have an AutoZone nearby? I believe they'll check the codes for free at most of their locations.
Last edited by SNIDELYWHIPLASH; Jun 13, 2011 at 01:42 AM.
Looking at a new air intake I just noticed that my stock setup seems to be different from anything else I can find on the web.
What's up with the second airbox on top of the throttle body? Anyone know what it's for? Says Chrysler on it so I guess it should have come with the car.
Cherokee is a 96.
/D

photo by bouboulemodern, on Flickr
What's up with the second airbox on top of the throttle body? Anyone know what it's for? Says Chrysler on it so I guess it should have come with the car.
Cherokee is a 96.
/D

photo by bouboulemodern, on Flickr
Seasoned Member
Joined: Jan 2011
Posts: 295
Likes: 0
From: Roscoe, IL
Year: 2000
Model: Cherokee
Engine: 4.0L 242 Power Tech I6
I had a JVC in an old truck of mine. I only spent about $100, had a pre-amp output on it. I ran it to 2 sets of components, and to a cheap amp & sub setup.. It did me fine for 4+ years until I sold the truck. If it suits your needs and the price is right, I say go for it!
CF Veteran
Joined: Jan 2011
Posts: 1,894
Likes: 4
From: Las Vegas
Year: 1999
Model: Cherokee
Engine: 4.0
I replaced the rear main oil seal and this was attached to the two rear oil pan 5/16 bolts. It faces the transmission inspection plate. Where can I find a new one, what is it called, or do I even need one. 2001 XJ auto 4.0 stock
Attachment 51386
Attachment 51386
GL.
☠ CF Sheriff ☠

Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
Looking at a new air intake I just noticed that my stock setup seems to be different from anything else I can find on the web.
What's up with the second airbox on top of the throttle body? Anyone know what it's for? Says Chrysler on it so I guess it should have come with the car.
Cherokee is a 96.
/D

photo by bouboulemodern, on Flickr
What's up with the second airbox on top of the throttle body? Anyone know what it's for? Says Chrysler on it so I guess it should have come with the car.
Cherokee is a 96.
/D

photo by bouboulemodern, on Flickr
☠ CF Sheriff ☠

Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
Ahem, so they basically put a muffler on my intake system?
I'm in Sweden yes.
My thought is it must act as sort of an air heater since it's right on top of the engine. Which makes little sense seeing how crowded and hot the engine compartment is even without it.
I'm going to have a look inside to see what's in there.
Thanks,
D
I'm in Sweden yes.
My thought is it must act as sort of an air heater since it's right on top of the engine. Which makes little sense seeing how crowded and hot the engine compartment is even without it.
I'm going to have a look inside to see what's in there.
Thanks,
D
☠ CF Sheriff ☠

Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
no, it's to quiet down the intake noise. EU countries are weird with their requirements for that stuff. The only thing you'll find in there is maybe some baffles.
So yes, it's basically a muffler for the intake system.
So yes, it's basically a muffler for the intake system.




