4.0

Hi everyone, I am in the market for a replacement engine for a 2004 Jeep TJ Sport on 35's and a 4" lift. I Hydrolocked the current one. Insurance is paying $2100 and I could do around $1000-$1500 on top of that (around $3500 budget). I would like to get a crate motor, but Im willing to put it...

Ok so recently i purchased a 2000 tj with a supposed ax15 transmission.The motor is blown up and needs replaced.Arond me there is this dirt cheap 97 cheorkee xj motor that caught fire.My question is this. Can i use the 97 cheorkee xj block and just mount all my old motor stuff on it. Or will it...

Gents, I recently acquired a 99 TJ wrangler (RHD) with the inline 6 and five speed transmission. The car is twinlocked, lifted. 32 inch muddies, spotties, rear bar, rock sliders, hardtop etc. etc. etc. with less than 140,000km (or less than 90,000 miles). The car drives great, no fluid leaks...

OK, so I ripped out the exhaust (and intake) manifold and put back in with a new felpro gasket to see if an exhaust leak was the cause of the nasty ticking noise in my new-to-me 2001 4.0L. Nope, not the prob. It's a main bearing or lifter rod or collapsed lifter, or gremlin poo (or, whatever)...

The body plate on my TJ has the code DDQ (= AX5 transmission), but as I'm looking at the transmission, it looks like an AX15... no cast iron section. I'm satisfied with the visual conclusion that I do in fact have an AX15, but the thing that befuddles me is why/how a stock TJ w/ 4.0 in it...

Hey All, Here's my current predicament... 1998 4.0L I'm about to replace my exhaust manifold, and upon reviewing what needs to be done I'm realizing that replacing the head gasket (which I think may be leaking slightly) is only a few bolts away. So now the question is, will that be biting...

I've got a 2004 TJ with a 4.0 & 42RLE. About a month ago I replaced the original 42rle at 125k with a reman unit from Powertrain Solutions. I also added a Derale TJ transmission cooler to keep things cool and bypassed the radiator cooler as per the reman companies request. Most of the time the...

There are some products out there that claim to be able to improve on the already significant engineering that has gone into your motor. The 4.0 engine in the Jeep Wrangler TJ is well known to be a hard engine to get power out of in terms of "bolt-on" modifications. You don't stand to gain any...

Hey everyone this is my first post on the forum so let me know if I've put it in the wrong section. I'm after the part # for the belt in the picture. I just ordered a belt but it's the more common one. I can only find pictures of the routing but no part #

While changing the rear main seal, I took a look at the timing chain. It flexed just over half an inch which, according to the factory service manual, means it's up for replacement. All in all about 4 hours. Hardware: Mopar Timing Chain Mopar Camshaft Gear Mopar Crankshaft Gear Mopar front...