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The Dana 35 in my '89 Cherokee exploded yesterday on the highway. Just shifted into fifth right outside of town, doing about 100 KPH when I heard a KABANG! followed by thump thump thump thump. Shit. Pulled off to the side of the road and walked home. Got the jeep back to the garage today and...

1989 4.0L Few months ago a small tick/knock developed from the engine that didn't seem to be much of an issue. Was only barely audible at idle. Now, the knock has suddenly gotten a LOT louder. It sounds like a bunch of rocks in the engine. I used a screw driver as a stethoscope and couldn't...

I was just wondering how to tell if a Renix jeep is in limp mode? I've been trying to track down a poor performance/mpg problem and can't figure it out. My idle is nowhere near solid, although it's always at a consistent 600-700 RPM's. What I mean by "not solid" is that the needle fluctates...

Is there a way to change the thermostat out without losing too much coolant? IE pinch a hose, jack up one end of the vehicle, etc etc.

89 XJ, closed cooling system. New stuff: Water pump Radiator Thermostat Coolant bottle After replacing my old rad with a nice shiney 2 core (row?) aluminum one from Performance Radiator, and thermostat with a MOPAR one, I have an odd issue. When the jeep warms up, it'll go past the middle...

Specs: 89 XJ, 4.0, AX15, Np242, Dana 35 The springs have almost 400,000 KM's on them. They were the optional HD springs from the factory. Brand new poly motor & OEM tranny mounts. New U-joints. Here are my symptoms: when accelerating or letting off the throttle, the jeep 'hops' until it...

Try replacing your injector o-rings! I replaced my intake manifold gasket recently (for another issue - exhaust was cracked) and when I took the old injectors out I found that there was a bunch of carbon and grease where they seat into the intake manifold. Once I cleaned that out, they didn't...

My '89 XJ runs like poo when it's on the first start of the day. No matter if it's hot outside or cold, it runs like crap. Here's a detailed explanation: When I start it, it takes a normal cranking time for a RENIX, maybe a tad longer, that's not the issue. Once running, it'll idle...

I am in the process of replacing my exhaust manifold and I came across this: (click for bigger) The top of the one clip seems broken off. Is this something to be concerned about? I don't remember it breaking off in the process, it could have been like that. There's a little free play in the...

Do I win some sort of prize? I have a hugely cracked manifold, and I still got 20 MPG on my last fillup! This is on my 89 RENIX. I don't want to upgrade, I just want it fixed as cheaply as possible. What would be the best option? Braze it? Or buy a new one?

Is there a way to replace the backup bulbs with brighter ones? If I could even get a headlight bulb in there, that'd be fantastic. Reason I ask is mine are pretty dull (1989) and I like to see behind me at dark when backing up.

I'm looking to do a bunch of work on my XJ this weekend, and I was thinking about dropping in some junkyard orange tops from a Mustang or equivilent. The reason being is that my Jeep has almost 400,000 KM's and I don't know if the injectors have ever been changed, so I'm going to try and find...

On my 89 XJ, when I twist the washer switch on the steering column, its about a 20% chance that anything will happen. Sometimes only the wipers will work, and then they might only wipe once or twice. Sometimes it works perfect, and sometimes the washer doesn't spray very hard. Does this mean...

Whenever it rains (or I wash my jeep.. :p) I always get water flowing down the back two pillars, on the inside. I have the entire back of the jeep Herculined so I'm not too worried about mold or rust, but it's definitely not something I like happening! Specially if I have stuff back there! So...

Edit: Oh right it's an 89 XJ 4.0L, w/ AX15 I recently insured my jeep after having it sit since Februrary. Part of getting it on the road was to replace the front right brake caliper, as it had seized. Now when I turn left, and only left, I hear a scraping sound that rotates with the tires. IE...

Recently the starter died in my '89 4.0. Click. Click. It's happend a few weeks ago as well and I just tapped it with a starter to make it work. No dice this time. So I went to the local pick n pull and found a couple 97 Cherokees (extremely rare to find 97+ there!) and grabbed a chrysler...

I recently installed a later model thermostat housing into my '89. The one that has the threads for the fan switch. I also bought a Niehoff TS25261, the 3/8" threaded fan switch that comes in 81-82 corvettes with the 5.7L. The first one didn't work. When I let my jeep overheat on purpose, I put...

I got a later model (91+) thermostat housing to replace my RENIX one so I can put in a temperature sensor to control my fans. I got the sensor (Niehoff TS25261) and it won't screw in all the way. There's about three to four threads that are visible when it tightens up. Is this normal for the...

I installed a Taurus radiator fan in my '89 4.0L this past summer and I didn't have a toggle switch for it, it was just always on. Well tonight I changed that. I don't have AC so I don't know how you would incorporate it with the AC override, and it's a RENIX era rig so the later models wouldn't...

What's the best way to control when your rad fans turn on? My Renix switch is junk - I tried two from the junkyard and even bought an aftermarket one and they won't turn the fans on until its way overheating. It's either something with my rad, or the way it was designed, but I'm not going to...