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  1. TJ Tech Forum
    I was in about 3rd gear yesterday and the jeep started misfiring and CEL flashing. I came to stop to pull out, uphill of course and could not get any power in gear. I had to roll back down hill and shift to second. Got a another run at the hill fairly steep. Was unable to get the Jeep to the top...
  2. YJ Tech Forum
    Trying to help a buddy get is 1987 YJ back on the road. Jeep has the 2.5 TBI 4 cylinder with the 5 spd. Has fuel at the injector in the throttle body but no spark. Here is what has been checked so far: cleaned up the grounds at the engine block checked ohms between battery grounds at the...
  3. YJ Tech Forum
    Hi! New to the site. Have a new to me 91 yj with a 2.5 lots of suspension mods but nothing with the motor. Failed smog with high NOx2 @ 15 / 1593 (1066 max) and at 25 1647 (926 max) temp was at 210. Fuel was 91 oct with probably a little stabilizer left over from sitting. Read a lot of forums...
  4. TJ Tech Forum
    I have a 98 Jeep TJ 2.5 SE. I just swapped the motor from a 95 YJ. Swap went beautifully for a first time but now i'm running into the issues. When I start my Jeep it idles at 1,000 rpms. Once I gas it to around 2k rpms or more, it idles at 2k rpms! It'll idle at 2k for a while and then maybe go...
  5. JK General Discussion Forum
    I am going to lift my 2015 JKU Sahara. I am set on the wheels and tires (Deegan Pro Comp 4 17’’ and Nitto Ridge Grapplers 35’’ ) but continue to debate which lift to go with. This is my DD (it is geared 3.21) and I generally am on road, dirt trails when mountain biking, and the occasional...
  6. TJ Tech Forum
    Hi. Im new to these forums, so if something I say has been covered, please forgive me. I have a 1997 TJ 2.5 I4 with an a/t. 2.5" lift and 31"x10.50's. Having problems with it losing power. Cant hit 50 mph unless I'm goin down hill. Much worse going up hills. I can put the pedal to the floor and...
  7. 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...
  8. JK General Discussion Forum
    Hey y'all. I have a 2017 JKUR Recon and am looking to install a lift in the near future. I already have aftermarket driveshafts. I am planning on a Metal Cloak Game Changer lift. What I'm in between is weather to install a 2.5" with 33"s or a 3.5" with 35"s?
  9. TJ Tech Forum
    i have a 97 jeep wrangler 2.5L automatic that has been misfiring, ive replaced all spark plugs, spark plug wires and the distributor as well as o2 sensor, crank sensor and throttle position sensor. the misfire started in cylinder 4, after i replaced the fuel injector for 4 it still misfired but...
  10. YJ Tech Forum
    I have a 1990 YJ 2.5 TBI. I'm having a problem where the fuel pressure drops from 15 psi to 0 psi. It may crank and run a few minutes then the fuel gauge pegs out past the full mark and I can see the pressure dropping out then come back several times until it finally sits at 0 long enough to...
  11. JK General Discussion Forum
    I have a 2017 Wrangler Unlimited Rubicon Hardrock. I'm having a MetalCloak 2.5 lift put in. I know I want Nitto Trail Grappler tires. My question is: What are the pros/cons of the 315x70 R17 vs. 35x12.50 R18. I've looked up the actual height and width, so I understand the small variances...
  12. YJ General Discussion Forum
    (I know this is a lot to read but please bear with me) So Yesterday i was pulling up to work in my 93 Yj 2.5 and after i had parked i had noticed it had a slight lil tick to it so i checked the oil and it was down to the add line and i knew i needed to add some oil soon because it leaks a little...
  13. JK General Discussion Forum
    Hi everybody, i am very new to this whole jeep thing and want to get started on my build. I have a brand new Jk and would like to lift it, i have heard great things about rock krawler and i am very interested in going with the 2.5 flex system with fox shocks my BIGGEST concern is this is my...
  14. TJ Tech Forum
    So I have a 1999 Jeep 2.5L and for a few months now the car is giving me problems when starting. When I turn the key it cranks very slow, and sometimes wont start. If I am turning the key and it wont start so I stop and then start turning again it will turn on like normal. Also if I start my car...
  15. Art's Yj

    1995 Wrangler YJ 2.5l
  16. YJ Tech Forum
    I'm getting ready to replace the exhaust manifold mounting nuts and bolts on my 2.5 and while I have the torque specs and rotation order to tighten, I want to be sure I don't miss anything that I should be aware of. Also, with the replacements came 2 nylon or Teflon gaskets (look like plumbing...
  17. TJ Tech Forum
    My daughter overheated her 4cyl Wrangler last year. It had a bad water pump, rust in the system, and water vapor coming from the exhaust. I've replaced the water pump, flushed the coolant system, and installed a remanufactured head. It is still losing coolant but shows no leaking fluid when I...
  18. YJ Tech Forum
    Hi Wrangler Forum Community-- This is ultimately a "what size tire to buy" thread--but please read into this. If you have Nankang Mudstars in 33" or 315 I'd especially like to hear you. I don't care what your BFG Mud King measures, this jeep is 100% budget. I've gone from the stock P215 R15...
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