Jeep Wrangler Forum banner
1990
1-15 of 16 Results
  1. YJ Tech Forum
    I've been looking everywhere for an air intake adapter (part number J5463866). The part has been discontinued and I've already reached out to some local salvage yards. Any suggestions on a part I could use instead? Or any way I can attach the air intake hose? Here's a link to the diagram. I...
  2. YJ Tech Forum
    I’ve had an oil leak from the rear main for over a year now, I would find a couple drops after parking. But things seemed to have gotten worse… it leaks a small puddle from another area, not the rear main but the oil filter. I have no idea what exactly is leaking but The last time I changed the...
  3. YJ Tech Forum
    Hey y’all, I own a 1990 Jeep YJ, 2.5L 4cyl. Over the last week or so my Jeep has become more and more resistant to start. When you first try to turn it on, to the first click, all the lights and radio light up, but when you actually try to turn it on, nothing as of today. A few days ago it...
  4. YJ Tech Forum
    Wondering if anyone else has had this issue... 90 YJ with 2.5" lift, the tube of these shocks are too thick and contact the axle so as not to meet-up with the bottom mounting lug. I spoke with mfgr to confirm this model number is supposed to fit, and they say it should work with my setup. Sadly...
  5. YJ Tech Forum
    Hi, I am new to the forum and have had many Jeeps over the years; Willys, CJ-5, Pickups, Wranglers and Cherokees. I just picked up a 1990 Wrangler that needs some TLC, but has a good frame and mostly straight body. One thing missing is power steering. I have the complete power steering setup...
  6. YJ Tech Forum
    Need SMOG help. What to do next? Was thinking MAP sensor maybe is failing. New cat last year Stock Carb - I know this is an issue New o2 sensor last year Timing is around 12 BTDC Running rich. I think limit on CO is 25 Here are the results HC 6.9355 CO 36.5787 CO2 464.1139 NOX 0.1090
  7. YJ Tech Forum
    I have a 1990 YJ with the 4 cyl TBI, I am currently having ecm problems, I have had my ecm rebuilt/rebooted twice and each time the same thing occurs. It runs fine for a year or so then the ecm fails and it won't send signal to the injectors to fire when I try to start it, just cranks. If I spay...
  8. YJ Tech Forum
    Hi Everyone. First time posting a question. Well i have my first YJ. I had a TJ from 2001-2006 and had to sell it to get something more efficient for commuting. So im finally back in the Jeep life and am rebuilding a 1990 YJ 4cyl. So far i have done all sorts of TLC and fixes. I just put...
  9. YJ Tech Forum
    Got in the jeep today tried to start her up she cranked for a split second like she always does before she starts up (at most she turns over for 1-2 seconds then starts) but then cut off, I heard some clicking and I felt the gas pedal push up against my foot a few times. I turned the ignition...
  10. YJ General Discussion Forum
    I have been doing some research on 1990 YJ's and am looking for the production numbers that were built in late October 1989. I was wondering if folks would be willing to post the build date (mm/dd/yyyy) and production number of their YJ's, especially if they were built in late October '89. I...
  11. My Jeeps

    My jeep
  12. My Toy

    1990 wrangler
  13. YJ Tech Forum
    I have a 1990 Jeep wrangler. I just replaced the starter because it would crank several times but wouldn't start. It seems that it would crank so many times that it would drain the battery. At first I thought it was the starter (original) so I replaced it. But it still won't turn over. The...
  14. YJ Tech Forum
    I just got a 1990 Sahara with only 88,500 miles on it. When I go to start the jeep, it tries to turn over and then doesn't start. Then on the second time it will start. Furthermore, on different occasions, it will start up only after the 4th/5th time. After use and turning it off. I can...
  15. YJ Tech Forum
    My boyfriend's 1990 YJ jeep wrangler wouldn't start this morning and after jumping it it ran. It also ran when we got out of class today, but an hour later it wouldn't start back up. We tried jumping it, but even though the battery says that the charge is fine, it's not turning over. The...
1-15 of 16 Results
Top