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99 XJ 4.0L auto 135k miles. Had the fuel pump replaced 2 weeks ago, and at the same time had 4-hole injectors installed. Ran okay till last weekend. I disconnected the battery to reset the ECU (so it "re-learns" the fuel mapping). It ran okay on Sunday after that, but Monday morning when I...

I have several dinner-plate sized spots where the headliner material has come loose from the backing. Any easy fix for this without pulling the headliner and replacing/regluing the entire thing?

99 XJ Sport, 4.0L, 4wd, 130k miles. When the engine gets hot or when the AC/def is on (the times when the electic radiator fan ought to be running), the fan will come on for a couple seconds, then turn off, then back on, and off. It will keep doing this, never staying on (or off) for longer...

You know the ones I'm talking about.... the same flow/pressure as the stock injectors, but they have a finer spray pattern? My 99 XJ Sport is needing a replacement fuel pump, and I figured "why not replace the injectors too?". So I was gonna buy a set of whatever the "good" injectors are, have...

EDIT: TITLE SHOULD BE "LOW POWER....", NOT REALLY A "LOSS" OF POWER. I have a 99 XJ Sport, 4.0L 4wd, auto, 130k miles. Owned it for about 6 months, last month I moved from CA to TX, and have noticed that recently at lower RPMs (<2500), it seems to have lost some power. I'll be on the...

Need to replace my 99's oil pressure sending unit. Years ago, I'd heard that you're not supposed to use teflon tape on oil fittings, is this correct? What should be used to seal the threads on the sender?

99 Sport, 4.0L. 125k miles. Factory pressure gauge has always been around 40ish, slightly higher on accel, lower on decel. Had oil and filter changed about a month ago, and everything was fine. Get in car this afternoon and the pressure is reading close to 80 under accel, 70ish under decel...

Anyone here work for a dealer and able to lookup their book price on installation of a factory TracLock LSD in a 99 XJ Sport w/ 8.25 (3.55) rear diff?

What exactly does the "heavy duty" OEM suspension include? How does it differ from the regular suspension? I recently replaced my sagging rear springs with a set of "heavy duty" OEM springs from Quadratec (stated 7" free arch), but now my 99 Sport's rear sits kinda high. I don't want a full-on...

I have a 99 XJ 4.0L auto with 125k miles. I stop at a stop light, then when I start moving again, the transmission kind of "thumps" into gear right as I start rolling/accelerating. It's between 0-5mph when it happens. No other problems with shifting. Ideas as to the problem/fixes? Thanks.

99 XJ Sport, 4.0L, 125k miles. Just noticing that it's starting to take longer for the engine to catch when first starting it in the morning. 3-4 seconds of cranking rather than the 1-2 seconds it previously took. Not getting any engine codes, just wondering what to check.... plugs? fuel...

I've had 3 97+ XJs with the same problem (and it's common, from what I've read...). The driver side power window switch works fine, but frequently, the power window switch on the passenger (and rear) doors don't work at all. I've read this is due to the window lock switch having problems. I...

:( 99 Sport 2dr. Door had been sagging for a while (I just bought it a couple weeks ago). I replaced the hinge pins, but while out getting tires today, I noticed this. Door is also hard to get to latch securely. :(

Searched for about half an hour trying to find timing marks on my 99 4.0L. Then I googled and found a cherokeeforum.com thread which said the 4.0's ignition timing isn't adjustable (computer controlled), and therefore no need for timing marks. Is this true?

Apparently the tires on my 99 Sport which I just bought have around 40k miles (and 6 years) on them and are almost completely bald. I need some replacements, but this will 99.9% be used for on-road use for the next 3-4 years (college student, basic transportation, can't afford to wheel & break...

Just bought a 99 Sport. Used a dial caliper to measure the front sway bar, and I got 26mm. Is this a standard size? It seems the only diameters Quadratec sells bushings for are 23, 24, 25, and 28. Is it actually a 25mm? The bar is clean and I measured in a bunch of locations, but always get...

Just bought a 99 2dr Sport, and both doors are sagging. From the various write ups I've read, I just: 1) Take off doors (for ease of access) 2) Cut through old sleeve and remove 3) Cut through old pin and remove 4) Pop out old bushings 5) Install new bushings 6) Install new pin and sleeve 7)...

I've got an 00 XJ Sport, 4L, with a Chrys 8.25, 3.55 ratio, open diff. I'm trying to choose what LSD would suit me best. On my last XJ, also a 00 Sport, I went with a factory TractionLok, and while it worked well for a while, when I had the diff fluid changed at JiffyLube (I know, I know.....)...

Recently bought a 2000 XJ Sport, but didn't get the keyless entry keyfobs with it. Previous owner said he had one, but couldn't find it. I have a pair of them from my last 00 Sport, which was totalled/towed last summer. How can I go about reprogramming the keyfobs I have to match my new XJ?

Just purchased a used 00 XJ Sport and I'm looking to get urathane sway bar bushings for it. I used a dial caliper to find the bar diameter, which gave me 26mm, exactly. However, when looking at Quadratec's catalog, they only have bushings for 23, 25, & 28mm. I remeasured in a couple different...