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Okay so my search hasn't exactly been the most fruitful of the following question. What are the dimensions of a Renix 4.0 TPS bolt and IAC bolt? I wanted to replace the bolts because I lost one, the other TPC bolt started stripping at the torx head, and the IAC bolts somehow have a triangular shape to the shaft. On a whim yesterday, I took the TPS bolt to the hardware store, and it seemed to match with an M5, but the M5s that I took home seem too big. Today I returned and noticed that the TPS bolt will thread into both the M5 and the 10-32 gauges. But when I compare the bolt to what they have, it seems the threads don't sawtooth together with the 10-32 bolts. Or maybe it was 8-32, heck I dunno, I've got so many numbers already to memorize... The IAC looks to have a larger diameter shaft. '89 4.0 Renix, by the way.

Hi guys I just joined the club a couple of days ago, I've been to lazy to join in the past year, but no more excuses! Time to let you guys see my work in progress Jessica... If anyone wants to know why I named her like that ask and Ill tell you guys the story lol. I purchased her pretty much all "ready to go", but as soon as a started wheeling it, and like with any used car purchase, all the bugs started coming out, it was then when I realized she was a pavement queen... All this mods were done by the PO. One of the first things that happened to me was the infamous death wobble! And sure enough the PO had the original 1989 trackbar there! So I changed it and I was good to go again! Then on another mild wheeling trip and bike riding, I lost all brake lights and turning signals!

So I plan on doing the 4wd conversion to my 1989 2wd automatic 4.0L MJ. I obviously want the cheapest route and don't mind the work needed. I guess my question is, if i found another xj within the years 87-90 (renix) does everything swap right in? besides the rear driveshaft (I know that would have to be re-sized). I also have an automatic tranny right now and keeping it would be less costly and less work than getting a manual trans but would my ax4 be a good match up for a transfer case? Or would I have to swap the trans from a donor with a 4x4 auto? This is my first big project for me so help would be appreciated! :thumbsup:

89 MJ 4.0L 2WD AUTO 140k - found this delightful surprise while going after the thermostat - lower mounting boss broken off - previous owner busted it and basically RTV'd thermostat housing it in place - any suggestion to repair without pulling head would be appreciated - reman CYL head #2686 is hard to find / expensive. Comments on these ideas appreciated 1) clean thoroughly and JB Weld a helicoil in place and use smaller fastener 2) drill into water jacket / tap and use longer fastener - seal with #2 permatex 3) add 2 smaller adjacent fasteners into the cylinder head face on either side of the busted one Any other approaches would be appreciated

Hello, my 1989 jeep Comanche long bed that I have, has been dealing with some drum issues going through inspection. I bought the jeep and and it already had what looked to be new shoes around 4 to 5mm of meat on both sides. The drums although I would say have seen better days. My question is, could I sand down the shoes really well and slap a new drum on?(its a Dana 35 rear too I should add). I have heard mixed things on throwing a new drum on somewhat used shoes. Should I give it a shot?

Ok a trip through my last project. Rock sliders for my 1989 Comanche. First obtain some 2x2x1/4” square tubing. Cut to near length and see where it’s gonna end up.

Hey all, i'm the proud new owner of this '89 MJ. It came with some issues as most older jeeps do. First order of business, clean the throttle body and iac. Trying to eliminate the vacuum leak, which is massive. Kicking out a loud whoosh when i step on the gas pedal, limiting my top speed to 35 mph. PO installed an electric fan to help with overheating, seems to work well, keeping temps at 220 F if i can trust the thermostat. So i'll be under the hood for a while this week. The forum articles on vacuum leaks are helpful. Also i'll be looking for a new flexplate, mine is cracked. Any advice/info on sourcing a new one will be appreciated!

Please help, I've got engine oil in clutch reservoir (?) I recently became a proud owner of a 4WD 89 Comanche 4.0 paired to a Peugeot transmission, but the previous owner lost the clutch while delivering it to my house, making clutch-less shifts. We added fluid to the master cylinder reservoir, pumped the clutch, and the fluid turned black. Now the clutch has some pressure, but quickly loses it as it drips from where the rear main seal would be. The seller mentioned that the rear-main seal was most likely bad, and it explained the oil leak that I saw when I test drove it. The master cylinder doesn't seem to be leaking, nor does the line leading to the internally located slave cylinder. The engine oil is pitch black and very low. My best guess is that the slave cylinder blew and is ingesting oil from the rear-main seal leak? Has anyone encountered this? I tried to find videos on how to replace the slave cylinder when it's internally mounted, but had no luck. I wanted to get it running myself so I could plan out what the build would be, but now I'm wondering if I should send it out, swap to an AX15, replace the clutch, and convert to an external slave cylinder. Any advice is much appreciated

I have a 1989 comanche eliminator. Inline 6, 4x4, AX15, 3 inch lift. Been driving fine. Just bought it a couple weeks ago. Has a bit of high idle. Leaks here and there. Smallest amount of coolant in oil but it does have 268k miles. Gonna do the head gasket and such soon. I drove it and parked it, no problem. Blinkers stopped working but was going to look in to that. Been following Cruiser54's tips for sprucing up grounds, adding some, etc. Will keep doing them as i go. The next morning after i parked it in my swamp of a driveway, it wouldnt start. Normally i turn the key and the pump primes, its loud. I can hear it while driving but it seemed fine. Definitely noticeable. This time, no prime. So being before work i didnt do much besides bang on the tank and switch the relays around, nothing. After work, i checked ballist resistor, 1.1 ohms, bypassed anyways to no avail. The relay was swapped around with all the rest so that rules out the relay. I checked for power at pump, i get 6 volts off of the plug for pump with key in on position. I'm thinking that's kinda low. I also get 6 volts if i hook up the wire (bypassed ballist resistor) to my meter and ground it on body. So I'm sure its getting to the pump but maybe not enough? I also did Cruiser54's tip of adding a independent ground on the pumps harness just to be sure as well as clean ground behind taillight housing. I have power on pin 30 of relay and switched ignition power on pin i believe 85 (trying to remember what pins are what). I tried jumping power to the pump and that didn't work. I also removed the pump (before i added the extra ground point to it) and hooked it to the battery for a split second, and it did run. So I'm positive the pump itself is okay. Right now I'm working on tracing wires and connections and sprucing up plugs, etc. I tried looking around other forums, etc for ideas but I'm not sure at this point. Any ideas or thoughts would be greatly appreciated.

So here it begins, I've always wanted an MJ and when I saw these 2 for $600 couldn't pass them up! They are in ruff shape but they run! one is for parts (no papers) and the other is going to get a makeover...already started this weekend by doing the open cooling conversion, new valve cover gasket and Vent modifications on cover, replaced ALL the vacuum lines and started the newer body conversion on the front end! Keep the MJ's on the road!

backstory- back in early 2015 i saw this comanche for sale but had no money, after about a year of working and saving i started looking again. i came across the jeep again one year later in early 2016, with the same selling owner. i contacted him, drove 2 hours up to north jersey with my father and brought it home

Hey guys, new member here! If this has already been answered somewhere then I apologize, I have not been able to find it! So I’m trying to figure out if the flexplate follows the engine year or the transmission year. I’ve got a ’91 MJ, 4.0, auto, 2wd, column shift, short bed, etc. I recently grenaded a wheel bearing and ruined a spindle, so decided to go ahead and do a 4wheel swap. I bought an almost exact 1990 Comanche but 4x4 and worse body to part out. In doing some research I noticed flexplates are listed by ’87-’90 then ’91-’00. Both seem to have the same specs (164 teeth, 13.83” OD, 12-14 pitch) but have two different part numbers, different weights, and two very different prices. So if I’m using the 1990 transmission/transfer case but keep the 1991 engine, which flexplate do I need to use?? Thank you in advance!

I am looking for a 3/4 or full guage cluster for my 1989 MJ with the 4.0L and automatic transmission. Let me know what you have and price shipped to 72687. Thanks.

Does anyone have a part number for the plastic door lock Rod clip for a manual door ...passenger side. Apparently one off of a electric Cherokee door I got will not work. It's to fat so I whittled on it and then I broke it. I was hoping to find a dorman part number or something I can pickup at lock parts store.

It has been a long time coming friends. Here is a little background on this project... I drove to Alabama from Georgia to tow this beast home after looking for a long time. Got it for $900 in working condition with some "minor" fixes necessary. I guess "minor" is somewhat subjective, but here is a list of what I got, what was wrong with it, what I've done to fix it so far and what I'm planning on doing. Keep in mind that this is still in progress. I will keep you guys updated as it comes together with tons of pictures and probably some videos. I'm big on videos... Anyway, here's the beast the day after I picked it up: And here's some more pics before some of the fixes just to give you the full scope on this guy: And here's the engine: The rust was not terrible, but obviously not ideal either. The biggest issue was basically the electrical was all messed up. It would not start half of the time, the turn signals never worked when it did start, no radio, A/C worked only half the time, and worst of all, half the time I was driving and it would just stop if it idled. This was not an engine issue though, it was all electrical. I knew this because all power would go out and if I got out of the truck and wiggled the wires around, i could eventually get it to crank. I turned to ComancheClub to help me asses the issue by uploading tons of pictures of my wiring. While this wasn't a bad idea, it still was futile just because nobody could really see the issue. Turns out that there was a bad diode in the alternator. Check out how the last owner dealt with the alternator. I guess this is an Alabama fix? :doh: So, to start, I replaced the alternator and fixed some minor wiring issues. Now the turn signals work, the A/C works, the heat works, the engine cranks every time and stays that way no matter how long it's idling. :banana: Alright, so the beast is alive now. Good progress. From here some routine stuff had to be addressed. The radiator fluid inside of the overflow was rust brown. I flushed it completely and then found out there was a huge leak in the radiator. I guess some dirt or rust was clogging the hole up before, but now it was just pouring out coolant. So...time for a new radiator. :wrench: After I got the radiator in, I went to the oil, changed the filter, put some good synthetic stuff in there. Food for the soul . :MJ 1: . So...now the beast runs like a champ with a new alternator, fixed wiring, new radiator, new coolant, fresh oil filter and clean oil. So what's next??? :) Here's my list. This will allow me to have something to reference as well as allow you guys to hound me if I'm not updating you with pics and info! -Paint Job, sand down the rust -Take out the carpet and fix the floor as I'm sure there's plenty of rust there. -I know the interior looks pretty good, but I have an itch to change the interior to some sweet black and white seats I saw on this forum a ways back. I will try to find some photos, but am not sure I'll be able to. But it looked sooo good. -Add roll bars -possibly a lift -Needs new tires desperately -Some surprise customization that I'll keep you all on the edge of your seat for :popcorn: Normally, a paint job shouldn't be the FIRST thing for a variety of reasons...but I had an opportunity that was too good to pass up to trade a guy who has a paint shop for services. I build websites, do photography, video etc. so I offered to build him a couple websites for his business if he would paint the beast. He agreed. Under 1 condition though...he will paint it textured flat black (kind of like a bedliner paint job...) At first, I wasn't crazy about this, but I actually went to visit a jeep that had this paint job...and I think it looks like a tank. Pretty freaking cool I think. But...just want to throw that out there so you guys don't think I killed my jeep when it comes back murdered out! B) I think it will look good...at least it will be a unique look. Anyway, I'll hopefully be able to update you guys next week with the paint job pics. Stay tuned

I was wondering which fuel pump, and filter to get for my 1989 Jeep Comanche 4.0l i6. I was looking at some on rock auto but wasn't sure which one would fit and be good to go rather then having to modify any wires. Thanks for the help!

pic updates 4/17/14 New http://comancheclub.com/topic/41707-my-89-comanche-project/?p=434564 2/16/14 http://comancheclub.com/topic/41707-my-89-comanche-project/?p=426058 2/14/14 http://comancheclub.com/topic/41707-my-89-comanche-project/?p=425645 1/25/14 http://comancheclub.com/topic/41707-my-89-comanche-project/?do=findComment&comment=422431 I've had this jeep since I was young. It used to run really great but over time and lack of TLC it became a driveway ornament for 6 plus years. Its been sometime since I originally meant to make this post because I was waiting for the email validation. I'll leave you with some pics of the truck with very little that I've done to it to compare and contrast, and tomorrow morning I'll go outside and take new photos of what I have been real busy with. I just wish I had taken more pictures before I started! Now I present you with the Jeep! Exterior photos taken a couple months before the engine ones which were taken last week. Cleaned the engine bay up with a brush Checked inside the valve cover after this photo, rockers were all tight and no sign of any coolant leakage or any discoloring. Just a bad gasket.. After all these photos were taken I really went to town. Took the old cracked serpentine belt off. Replaced the rusted non grooved Idler and Power steering pullies with new grooved ones. Brand new belt and good quality. New FEL PRO Gasket Set for Valve cover Replaced the corroded and rusted water outlet and thermostat with new ones and gaskets. Will have new photos tomorrow! To Do(for now anyway) Check Alternator Charge - replace if needed New battery New interior ambient lights New drivers side lock mechanism Right Rear wheel hub has a broken Lug bolt and needs to be looked at. ( could use tips ) New wheels and tires Some misc stuff I am trying to find a correct way to get all the old coolant stuff out of my radiator, I already have all the hoses off the water outlet and coolant container, and the power steering pump is still lowered so I have access to that area. I plan to drain the old oil of course and put new oil in it aswell as a seafoam run to clean everything. Theres an old hose I pulled off the lower intake manifold area thats hooking into the bottom of the airfilter. Whats that hose called? I need to replace it very bad, as it crumbled to dust when I moved it once. Final Thoughts This is my first ever automotive project, I have taken the time to read and watch videos and buy the haynes book for my model jeep. hands on only came after I had confidence I wouldn't mess anything up. So any tips , tricks would be nice because I'm really enthusiastic about this Jeep and plan to have fun building it and driving it for many years to come. Unless someone offers me a million dollars for it of course.

My '89 Eliminator 4.0 automatic doesn't want to engage reverse and it feels like I'm in neutral. All other gears work fine. Any info will be greatly appreciated!! Mahalo