Originally Posted by 1996XJSport

I was at the pick n pull the other day and I was grabbing parts off an 86, it sported the 2.8L badge so I got curious and popped the hood. YOU GUYS HAVE SO MUCH ENGINE BAY ROOM!!! I kind of laughed at how small the engine is (sorry it was just too funny). If you want to throw a 4.0L in you'll have no problem. I don't know as to whether or not you will need some beefing up on the unibody for all the weight + power but I'm pretty sure everything should fall right into place except for the fact that you'll need a stronger transmission. I don't recommend swapping a 4.0L in though (because theres plenty of even cooler choices for swaps), I'd look into an LT1 V8 swap those are cooler than s***, Also diesel swaps are awesome for two reasons 1. being TONS of torque and 2. Fuel Economy oh and I add one more reason in... You can **** off your tree hugger neighbors by flooring it in front of their house leaving a black plume of smoke!!!!!! I've seen youtube vids of a guy running an inline six diesel from a mercedes in his XJ and everything bolted right up, that even includes the existing tranny! So look into those swaps because those will shock any XJ owner when you tell them what you're running lol

Originally Posted by norcofanatic

Hey this guy I know modified his airbox simply by drilling holes in it (98 grand cherokee.) He originally put a bunch on side of the airbox with no effect, then he put some in the front of the box and apparently that worked.

It gives the exhaust a pretty decent rumble, and his engine apparently is running smoother as a result. Just wondering what are your thoughts on this, and if I should do this as well to my 97 cherokee or is there something bad with this mod.

Originally Posted by flyfish40

I have a 1995 cherokee sport 4.0 blown. will a 1996 4.0 drop right in with no probs. thx

Originally Posted by Andrewvk

ive tried searching buuuut.
ive seen a few times i can get a little better fuel econ by getting a programmer that adjusts my shift points. can anyone point me in the right direction?

Originally Posted by fantic238

Just the engine yes, keep all the surrounding stuff off the 95.

Originally Posted by dukie564

Unfortunately for you, the mileage is stored in the cluster. I would just deal with it, and convert when necessary.

Originally Posted by damageincracing

LOL I just wanted to make sure.

I've had to deal with some pretty stupid people at my work with car "problems", and all they turn out to be is the owner is clueless. Nothing like having someone complain about clunking coming from the back of the car for a week and the wife is afraid to drive it (for fear of something breaking), and the trunk is full of golf clubs and golf ***** rolling around. Owner put them in a week ago and can't make the connection. We took the clubs and ***** out, took the owner on a test drive with us (no clunking) and he was amazed, we "fixed" it. I told him we didn't fix anything, we took the clubs out. Ya know what the kicker is? We got back to the shop, put the clubs BACK in the trunk, and the customer left. The stupid S.O.B. was back within 10 minutes complaining about the clunking again! We put the clubs in his back seat and sent him out the door...

Originally Posted by alsxj

Lol thats freakin hilarious, I hope you charged him for wasting your time. No worries man, I understand how some people are, I'm going to school for automotive and my teachers have some pretty good stories. Anyways I fixed it, turned out my shifter was crap. Picked one up from the yard and replaced it yesterday. All good now, shifts all the way down to 1-2 now.

Originally Posted by dukie564

Forget it. None of the chips or tuner boxes have much effect on the Jeep 4.0L engine. If you are looking to improve gas mileage, look into hardware upgrades - ie. free flowing exhaust, 4 hole injectors, air intake, removing roof racks, Low rolling resistance tires, that sort of thing.

Keep in mind Cherokees are not what you would call aerodynamic. You're probably looking at 20-25mpg MAX under optimal conditions.

I would start by doing a complete tuneup - plugs, wires, fuel filter, oil change, tire pressure check, o2 sensor, etc. These things have a HUGE impact on fuel usage if not functioning at 100%.

Originally Posted by Jamie57

Have to. Reguirement to import vehicle from States. Used to just put stickers on speedometer but not anymore.
Will it continue to record in milage or will my new cluster record in metric?

Originally Posted by dukie564

Just get a new cluster, or a cluster that has lower mileage than the current cluster - then get it adjusted to read the correct mileage in metric. You can roll odometers forward without issue, but not backwards.