4.0l

2004 TJ Rubicon w/ 4.0L & 42RLE I recently purchased a PSC power steering and transmission cooler (second hand because they are not available anymore). I was curious how everyone ran the lines for them? I saw one video on Youtube and PSC didn't have any instructions to install it when I emailed...

Hey everybody! Bought my first TJ (97). I’m loving it. My first “mod” was getting rid of the fake Rubicon and Jurassic Park stickers… (no hate, but not my style) In short, I need help finding the exact placement of the replacement stickers. I bought a set of these...

This forum has been a great resource for our family w/ multiple Jeep's we've had over the years, so thank you! We've had a baby recently so it's time to sell our LJ for something different. It's been a great Jeep and I'm so sad to see it go. I've followed the forum's consensus with all upgrades...

Listing this for my friends dad but I have driven and seen this Jeep and can attest to its condition. It’s a 2004 Jeep Wrangler Unlimited, also called an LJ. This is a 2 owner Jeep, the current owner is in his 70s and bought it from a local dealer some time ago. He has mainly used this as a...

Price reduced to $16,000. For sale is my Flame Red 1997 Jeep Wrangler (TJ) Sport, 5-speed, 4.0L 6 cylinder, A/C, and 4-wheel ABS brakes with only 66,485 miles on the odometer. We are selling because we don't use it as much since the kids have grown and moved out. It's a great Jeep and has been...

Have a Banks Ram-Air system off my TJ - used it for ~15,000 miles and liked it, but decided to change back to stock for quick serviceability and access to filter options. It did seem to help acceleration, it did improve economy slightly, and it most definitely made the Jeep sound "better." At...

Have 3x extra K&N air filters for a 4.0 TJ - somehow I've collected them over the years. One might never have been used, the other two have been. One needs a clean/recharge, the other two look either brand new, or not bad. Take a look at the pics. If anyone is looked to get one, or needs a...

Yesterday I was driving back down to Jersey after I spent thanksgiving with my family. While I was there, I also took the jeep to get emissions tested (required in CT until the vehicles 25 years old... my '99 is almost exempt...) but it ended up failing due to an evap leak and an o2 sensor. I...

I'll just list the basics here since it's on CL with full info and tons of pics. SOLD! * 2001 4.0L Sport, manual transmission. 189K but only 89K original miles on the engine that's in it now. * 4" suspension lift with Rubicon Express springs, Bilstein rear shocks and brand-new Rubicon Express...

Hey guys, So excited to be back in the Jeep community. Just picked up a rust-free 2000 Sport 4.0L with 161k. Big improvement from the '97 2.5L I had in high school! Well, hopefully :unsure:. It was running fine, maybe had a slightly rough idle. Took it on an hour test drive and found no...

4.0 Liter, in-line 6-cylinder, standard transmission. No carpet, soft top with Spider Web Shade underneath. Front bucket cloth seats have vinyl covers but rear bench seat is uncovered. Original motor replaced with a Remanns remanufactured motor in March 2017. 16,500 miles on the...

Hey all, Update as of 3/21/2019: Thanks to all who have purchased parts for me. You guys are really awesome and I hope the parts are suiting you well. I made sure to show Chris some appreciation for having this forum not only for the brotherhood and knowledge sharing but for for folks to...

Hi everyone, I've been using this forum to get me out of trouble with my TJ for quite a while, but this is my first post. I've scoured the web trying to get a definitive answer on this, but have so far just confused myself. I hope you guys can help. I recently had a bolt shear off my piston...

Hey all. I’m banging my head against the wall. 2006 4.0, just had motor rebuilt, rv cam, .0003 over. Initial drive after getting her back together and check engine light is on and sputters at 2500 rpm. Code calls for camshaft positioning sensor (which is brand new Dorman that came with OPDA)...

For those who don't know, I purchased a 2005 Wrangler TJ Unlimited (LJ) about a month ago and it flooded one night due to flash flooding (I will include a pic of my old Jeep flooded). It was then time to start all over again. Im partial to LJ's and Manual Transmissions which limits the number...

has anybody put on headers in the 4.0? if so, what kind.

When I first purchased my 2004 TJ earlier last Spring (end of March or so?), soon after having it - in the morning, it would whistle. After a few minutes, it would quiet down and go away - and I wouldn't hear it again, until the next morning. Researching it led me to believe it was the IAC...