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My 89 4.0l A/C compressor seized up after making some rattling noises along the way. All was fine until I didn't drive it for a few weeks, then the noise came and about 30 minutes of run time later it froze. Certain systems, like late model Fords IIRC, require all sorts of flushing and even a...

For the first couple hundred k miles I wasn't the owner of my 89 4.0 4wd XJ, however it appears to have been taken care of OK. 4wd works great as does most everything else. However, as I've talked about before, it wears front tires on the extreme inside. What's the probablility that it's just a...

While checking the suspension I find that my front bump-stops are eaten away and look like they've been disintegrating. They are very thin now, but look like they were maybe 6" long and red when new. They really didn't hold up... It's an 89 4wd, stock but with 1 size over tires. What kind/brand...

On my 89xj 4wd I'm finding that the front tires are wearing bald on the extreme inside edge before the rest of the tire. I didn't trust the first set that came with the car, but the next ones are doing it too. From what I've read, camber isn't adjustable, and everything is big steel that's just...

The last set of tires wore fine. I get a new set. It's wearing fine. The shocks are very old, so I buy the gas filled Monroes for it [truck/suv (black color)]. The old shocks were dead. The ride improves and it holds the road now. 15,000 miles later, the tires start to bounce (front). I get...

2 questions for all... A friend and I were driving in his 92 xj (stock 2wd, 4.0l) and we noticed that he was running warm (normally around 160 with a 160 stat, but about 190 now, A/C on). As he got home, the oil gauge started to wiggle about, and dropped to 10 or less for an instant a few...

I've got some 60A-90A assorted MOSFETs that I'm thinking of using to replace (or add in as) some of the relays under the hood of the XJ. Has anyone tried this? With 12v circuits, it should be easy to do with just a resistor (depending on configuration). These have VERY low resistance 'on', so...

I was talking to an older engineer this weekend about pots. A pot is what the TPS is, and this guy can take a piece of gear as complex as an oscilloscope and refurb it to new. One bad spot for them, especially if left unused for a while, is that the pots will get 'noisy' - in other words, they...

I remember my old 2000 XJ had a spring tensioner for the belt. 89 and 92 XJs do not. Seeing as how they are all 4.0l engines and have basically the same components, is there a way to take a later model tensioner and put it on an earlier model? I HATE the PS pump way of doing it! <I don't have...

I've stripped, primed and painted a few cars in the past, lacquer and enamel. However, since then I know there are all sorts of new technologies out there. I need to repaint 2 - one is totally without clearcoat now and is sandable-paintable, the other has lost some of its clearcoat and has the...

I've stripped, primed and painted a few cars in the past, lacquer and enamel. However, since then I know there are all sorts of new technologies out there. I need to repaint 2 - one is totally without clearcoat now and is sandable-paintable, the other has lost some of its clearcoat and has the...

The bottom of the XJ back to the axle from the pan gets wet with oil. Cleaned it up good. All dry. Start it and I get a drip from INSIDE the bell housing behind the access cover. Motor oil. Rear main seal? Any other possibilities? Smokes a lot at stops now, so need to fix it. If there's any...

I need to spruce up the wife's XJ Laredo - needs a new headliner, carpet, console covering (on the ceiling), etc. Seats seem to be OK, but a new steering wheel might be nice too. It's a 92. What's the best/cheapest way to find and buy these kinds of things. Junkyard probably doesn't have...

This is a question for those with 200k+ miles on their 6 cyl 4.0... I have 2, both over 250k miles. One has a ticking sound coming from inside the engine at idle. Sounds a bit like a VW diesel, but more pronounced if under the car or against a wall to reflect the sound. Most times you can't...

I just got a 92 Laredo for the wife and was looking at the throttle. It's an auto with probably an aw4 (only looked quickly) but it has only ONE throttle position sensor connector/cable, rather than the dual one on the 88/89's. I know the computer is upgraded, but still pretty simple, but my...

I know this may be off-topic, or I may just be last to know, but does anyone know where old_man has gone? He dissappeared in the middle of an email discussion we were having a while back to both his NAXJA ID and his real email. It was about the AW-4, so this is marginally on-topic... ;)...

I'm getting some slipping and engine reving when going into 4/OD on my AW4 under power. When in, or if not accelerating much during the shift, it holds fine. Is there an external adjustment that might help here, like one could do with older transmissions by adjusting bands, etc? Thanks. Skip

Does anyone know if one were to give the solenoids the signal for first gear at 50mph or so, would the hydraulics prevent downshifting until the right time, as if done with the shift lever? They are integrated with the valve body, so it could force it I would guess, but there IS other valving...

This is for all the AW-4 trans guys... and a few Qs for the gurus... ;) I've done some detailed looking at the TCU - it seems like the kind of thing I've wished for since I was a kid! A totally programmable trans!!! Anyway, this one seems to have a problem keeping the TC locked. I'll explain...

I like to think through a problem before I start taking things apart, rather than just replacing and seeing if that fixed it (like the stealerships). But, this one has me a bit baffled. This is a problem that has been going on for some time, and now getting worse, but still not failing, which...