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  1. YJ Wrangler Technical Forum
    Just something I ran into here and I'm wondering if the Chiltons book is right related to timing. This is the order of the spark plugs etc on the cap. #2 being at the front. Distributor rotor at 3 o'clock when installed correctly. So, is this what yours looks like? Everyone says the rotor...
  2. YJ Wrangler Technical Forum
    Long time listener, first time caller. I'll try to make this short. I have a 1995 2.5L 5 speed manual. Rebuilt the entire engine due to a blown piston skirt. Had about 215,000 on it. I also added a 2.5inch lift running 31x10.50. Started up and ran fine the other day after a 4 year sit while I...
  3. TJ Wrangler Technical Forum
    My '99 TJ 2.5L broke down in the highway this past weekend. Felt a thump in the engine, cut the power, and pulled over in the breakdown lane. After my tow I ran some diagnostics - my oil level was high, about 2-3 times the recommended capacity. I emptied the oil pan to find a ton of radiator...
  4. YJ Wrangler Technical Forum
    500 miles on a rebuilt 2.5 L. Smog check passed, engine ran great. Then; Backfire and jumping Tach needle, low power with a misfire. At rebuild...crank position sensor new, cam position sensor in distributor new. Distributor, cap and wires new. Plugs new. Installed a rebuilt PCM...
  5. Engines & Drivetrain
    Hey everyone I have a 1995 yj with a 2.5l engine thats having a problem. I have searched around the forums and found people with kind of similar problems but not quite the same. So in the morning or after my jeep has been sitting for awhile when I go to start it the fuel pump doesn't kick right...
  6. YJ Wrangler Technical Forum
    Looking for knowledge and help! I just put a brand new 2.5l long block into my 92 yj, went to crank it over the first time and had to adjust timing a little bit and she started right up! How its supposed to go right? Well turned it off and now she won't start again. Along with the new block I...
  7. YJ Wrangler Technical Forum
    hi, i have been having trouble with my coil not getting power. sometimes its a no start thing but mostly its a driving down the road then i get no spark till i get out and wiggle some wires on my icm. i would like to change it out with a msd coil and would like to delete the icm all together to...
  8. YJ Wrangler Technical Forum
    hi, ive been having this issue where my jeep (1987 2.5l renix tbi wrangler) losses power while just driving down the road, seems like all of a sudden the spark plugs are getting no power. if i throttle up sometimes it just backfires then continues on(blew up a muffler with that though)...
  9. YJ Wrangler Technical Forum
    i just went to try to pass smog and got a big ol fail, too high of idle, and two missing vacuum hoses, they are on the air intake above the throttle body. the 87-90 vacuum diagram doesn't help, they split the diagram up into at least three parts, emissions and 4wd and the mystery lines. also...
  10. YJ Wrangler Technical Forum
    I have a 95 yj with the ax5 I can shift through all the gears and all but once I shift into 5th there is no acceleration after that it will hold a speed of about 45mph .. Anyone have any suggestions, I know 5th gear is a common problem in the ax5
  11. Engines & Drivetrain
    Looking for any and all advice on an engine replacement. I'm a relative novice when it comes to engine work, so hear me out here. I've got a 2000 TJ Wrangler with the ol' 2.5L 4 cylinder engine. It recently developed a knocking, and as opposed to diagnosing and attempting to fix whatever is...
  12. Jeep Buying Forum
    I was looking at TJs where I happen to be at the moment (Boston -- it's funny to be looking at jeeps in salt country when I'm from the south), and found this 2.5l for a pretty low mileage of 69k, at a pretty low price of $5900. I have not looked at it yet to see past the dark poorly taken...
  13. YJ Wrangler Technical Forum
    Hey Folks, I'm new here. I was driving my Jeep YJ home one day and it slowly died. I was driving around 100kph and then the power started to lag and it slowly just stopped working as I cam to a stop. I did the usual distributor, rotor and cap, coils, plugs and still didn't work. I went and...
  14. TJ Wrangler Technical Forum
    Hey everyone, New to fixing my own jeeps, and looking for some advice. I have an 02 2.5L Wrangler. I've been having a problem with it idling high. At stop lights after it warms up, it kind of revs itself up to 2000 and goes back to 1500 at a constant up and down. Today I had to drive longer...
  15. YJ Wrangler Technical Forum
    Found this puppy by chance and I've been looking for a Jeep for a while now and settled with this beaut. My goal is to clean this Jeep up, make it MINE, and love it. I've always wanted a Jeep and I finally have one that I'm happy with, just want to fix it up cosmetically and mechanically. It's a...
  16. TJ Wrangler Technical Forum
    WHAT HAPPENED: I have a 99 TJ 2.5l 5speed with 174xxx miles on it. The idle has been rough lately, but not enough to seriously worry me. I drove to work (10mi or so), the Jeep sat for 10 hours, fired right up and note even a mile down the road, it starts backfiring, lurching and jumping, the...
  17. YJ Wrangler Technical Forum
    I have a 1989 YJ with 2.5L 4cyl engine. Recently been having weird idle issues. It seems to vary between 1200rpm to 1800rpm. Sometimes got up to 3000, but after a couple seconds, comes back down. Not sure where to start. As I'm a Jeep noob, I would appreciate any help possible.
  18. XJ Cherokee Technical Forum
    Hi, new here, considering a jeep purchase(first). I've always wanted a jeep but the 87 Jeep Cherokee 2.5L is a bit older than I ever imagined getting. I still have to check it with a mechanic before I purchase but I wanted to know 2 things: Are they reliable as daily drivers and whats the price...
  19. 2.5L 4 Cylinder

    Stock 4 cylinder in the 95 Wrangler.
  20. Engines & Drivetrain
    1995 YJ with a 2.5L, 4 banger. When I leave for work, it cranks without problem, when I leave work after it has been sitting all day, it cranks. Only issue is if I stop on the way home or to work. It will turn over and seem as if it has no fuel. After 10-15 sometimes as much as 30 mins it...
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