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89 XJ 2DR 4.0 5sp. 2WD Sport...Engine stumbles above 2K RPM OR shakes at idle. I've checked grounds and connections and verified sensor's readings and operations. Has about 130K miles on it but can't find the problem!

I just ordered a new CPS for my 89 XJ finding one on eBay for 25.00 shipped. It's Omix-Ada brand and has a 5 year warranty. Other Omix-Ada parts have been nice quality so I figured I'd see how it does. With most factory parts NLA/discontinued I'm trying to figure out the best aftermarket...

89 XJ 6Cyl 5sp. just started a slight miss @ about 2K RPM. Short event with small kinda single bark at the exhaust. (Not really a backfire.) Not constant, sporadic so thinking CPS getting dirty from oil leaks? Anyone pulled and cleaned CPS with any luck? Being intermittent it will be tricky to...

Starting to attempt repair/overhaul of my 89 XJ's A/C system and looking for advise? I've ordered new dryer/suction and high side lines. (The lines are real rusty looking so I figure it's time.) You guys helped me get it running so well I want to fix the A/C before giving it to my son...

Hello, it's been awhile! My 89 XJ Sport 6cyl 5 speed 2WD has been running like a champ thanks to everyone here's help! Just this weekend I unintentionally topped up the tank to FULL. (I normally run 1/2 or less.) The next day, after running fine, it took quite a bit of cranking to start. (4...

Boy what a pain! I paid to have my harmonic balancer changed at a shop my friends use. It started coming undone faster then I had time to replace it. I told the mechanic to just leave the rubber shield in the back of the Jeep and I guess he took that to mean I didn't want it because later I...

My 89 XJ power steering gear box lower seal is seeping some fluid and I'd like to know if it's a straight forward drop the pitman arm and pick out the seal to replace, or is there anything else going on I'm not seeing?

My 89 2dr 2WD is in need of new shocks and I'm looking for the best ones to get just a good around town ride, no off road or extreme handling. My tires are a little oversize and not very good at gripping in the rain so I know really "hard" shocks will only make that worse. (They came on the Jeep...

Well I noticed today the rubber is starting to stick out of my 89 6cyl XJ's harmonic balancer. I'm just wondering how far I have to tear down to install a new one? (I have an "FSM" but many of you know shortcuts.) I did a search but found nothing specific.... Thanks b5blue

I'm changing my 6 cyl. valve cover gasket soon, will it clear the thermostat housing after I remove all the bolts and lines to the cover? I've had other engines "look" like the valve cover will clear but found I had to remove everything around the cover due to the shape of the valve train and...

Opinions or experience with LuK brand clutch products? My good friend who owns a transmission shop highly recommends them. I know you guys have "real world testing" to extremes his customers may never see. I'm looking at clutch set 01-034 for my 89 XJ with Aisin 5 speed. After road testing my...

My 89 XJ's clutch master cylinder crapped out last week, it let me know by dumping fluid all over the fuse box and of course loosing clutch. I added fluid and it got me to work and back but before I could replace it the TPS stuck idle at 2500 RPMs! Tapping on the TPS brought the idle down but...

89 XJ 6cyl 5 spd 2wd Sport: Yesterday the ignition key refused to move to the off position while running around town. I tried wiggling, jiggling, pushing and twisting for 5 min. before pulling the coil wire and disconnecting the negitive cable off the battery. The key/ignition switch will...

I've noticed my 89 4.0 XJ's "Battery" gauge dips off center the more I turn on accessory's like lights, wipers and blower. It's still well away form the lower hash-mark but below center. Should it show electrical draw or is my battery or alt. (Or both.) starting to crap out? Having a gauge with...

What would I be looking for to read "engine codes" from the diagnostic ports under the hood? In other words what did dealers and repair shops use? (I have an 89 4.0 XJ.) :dunno:

Intermittently my (5 speed) XJ will loose power to the point of barely idling (roughly) or flat out stalling. I found a broken vacuum line and fixed it but a week later it did "it" again. It will start and rev up to about 2K then drop to a very low, stumbling idle or stall. I have replaced the...

Thanks for the good advice. My 89 4.0 XJ was showing 5 lb oil pressure at idle but only after fully warmed up. With only 120K miles and running strong and getting good mileage I was scratching my head. Pressure that low should have the lifters clopping and rods knocking in short order. As...

I'm sourcing parts for my 1989 2wd XJ, 4.0, 5 sp. (with A/C) Renix system and seeing a bunch of different suppliers and prices for things like the TPS (38-158 dollars!) Mopar, Delco, Crown, and others. Anyone got any recommended suppliers for quality parts and service? Thanks in advance!

The radio antenna on my 89 XJ quit working and when I removed the passenger side kick panel to replace it I found that it's actually a 2 piece cable. Oddly it's spring loaded and when the thin tube-like sleeve that holds the whole thing together split it disconnected itself. The cable from...

I'm trying to fix the A/C on my 89 4.0 5 speed XJ. It's bone stock and running great but A/C is not even raising idle when turned on. Any good starting points to check for why it is not working? I've checked the compressor clutch by jumping 12 volts and it works fine. I've by passed the low...