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2.5l engine

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1-20 of 24 Results
  1. YJ Technical Discussion
    It needs to be replaced. It is NOT the oil pan gasket. It is a leaking rear main oil seal. (kinda expected after 230,000 miles) There are plenty of videos online showing how to replace the 4.0L 6 cylinder main seal (the two piece seal) that is simply removing the oil pan and the bearing cap...
  2. TJ Technical Discussion
    Sorry if this has been asked, I couldn't find a solid answer. My 97 tj with 2.5 is blown. I found a nice replacement engine that has the AX5 manual trans. Will the replacement engine from the jeep that had the manual trans bolt up to my auto trans?
  3. YJ Technical Discussion
    So, i have a 95 wrangler with the 2.5L engine. About 6 months ago i got water in my oil. Assumed it was the head gasket. Did all the work and whatnot and lone behold, i have water in my oil again. (Keep in mind it sat for almost 4 months so i didnt see the water till i started driving it again)...
  4. YJ Technical Discussion
    Looking for some help on a part I can't figure out what it's name or number. I picked up an 89 YJ, 2.5L that has been running rough and getting some oil in the Air filter. I have a new PCV valve and have changed out some of the connector hoses. The Emission control Diagram shows it as the PCV...
  5. YJ Technical Discussion
    All, New to the forum and jeep ownership. I have an 89 YJ, approx 159K miles, 2.5L 4 cylinder. I've had the jeep for a couple of weeks and have noticed more oil leaking issues as I've driven it more and it riding more rough. I picked up a Haynes manual and working through trouble shooting. is...
  6. YJ Pics Forum
    I recently purchased a 1991 Jeep Wrangler YJ and the engine doesn't match the VIN, someone put in a 2.5L engine but I'm getting frustrated because the parts are not matching up. I wanted to replace the sensors and nothing really matches, for example I was looking for the throttle position...
  7. Florida Jeep Forum
    I am in search of a Jeep mechanic who knows everything there is to know about Jeeps, their engines, & that has an advanced understanding of troubleshooting, fixing, & tuning! Just the same that there are speciality people who specialize in Evo's, Mustangs, etc. I know there has to be someone...
  8. YJ Technical Discussion
    I have a 2.5 L Jeep YJ I just put in a new rebuilt engine (2.5) and it will not start and will not fire, the engine turns over though. i do have fuel pressure and the starter cranks. i checked my grounds and they seem good. what els could it be?
  9. YJ Technical Discussion
    I've searched around this forum and google looking for options, but most point towards forums that got out of control with "what if's".... I'd like to keep this simple, please. The 2.5L block currently in my (my wife's) '95 YJ has been welded because I am thrifty, and bought the cheap...
  10. YJ General Discussion
    Hey all, I am new here so I apologize in advance if this is a re-post. So to begin with, my YJ has been misfiring lately and I cannot seem to find out what is causing it this time. It misfires heavily when on the interstate (its a 3-speed automatic so when I'm going 60+ its at high rpms) and...
  11. YJ Technical Discussion
    Hey all, I have about 3 months until I go on deployment and i want to get my new YJ perfect for me so that when i get back i can take it out and destroy the desert and some rocks. If this is the wrong forum to post this in let me know what thread to post in and ill move it. My goals for my...
  12. YJ Technical Discussion
    My wife's '95 YJ, 2.5L is stock except for the used goodyear wrangler 31's we just put on. We took it to Silver Lake Sand Dunes this weekend and my wife went from being nervous that something might break, to driving it almost 24/7, all weekend long and demolishing the stock fender flares. 4 full...
  13. TJ Technical Discussion
    So last week the lower water hose blew on me. Out of stupidity I just figured it was because it was an old dry rotted hose that it busted. After installing a new hose and priming the hoses and filling with coolant. I started it up with no problem. Started heading down the road for a test drive...
  14. TJ Technical Discussion
    so my tj has 95xxx miles and i feel like my transmission is going out on me but im not sure... it likes to jump in about every gear and it feels like the transmission is about to fall out. i can shift gears and it will be fine but when the gear gets unhappy it starts thrashing the jeep back and...
  15. TJ Technical Discussion
    I have a 2.5l 150 CID I4 engine in my 1998 Wrangler, 5 speed and based on the mechanic's opinion it threw a rod, just not through the block. I have another engine I can get for $500 but it is from a 1997 wrangler I4 2.5l. I am not 100% they are the same or if it would work. Can anyone give me...
  16. YJ Technical Discussion
    Hello everyone, 89 man here. I preformed an engine swap on my 89 wrangler (2.5l 4 cyl) and after hooking it up to my surprise, ive got no spark! Shell crank, im getting fuel, but im not getting any spark what so ever... I replaced the ignition control module, coil, distributor, crankshaft...
  17. YJ Technical Discussion
    Hello everyone, 89 man here. I preformed an engine swap on my 89 wrangler (2.5l 4 cyl) and after hooking it up to my surprise, ive got no spark! Shell crank, im getting fuel, but im not getting any spark what so ever... I replaced the ignition control module, coil, distributor, crankshaft...
  18. General Jeep Discussion
    I am replacing my water pump. I have taken off the belt, the fan, and the pulley off, now there is the belt tensioner bracket which goes over part of the water pump. In order to take that bracket off there is a brace on the backside of that bracket and it looks like it is mounted to the engine...
  19. TJ General Discussion
    Is getting 12 mpg around town normal? It's a stock 2000 Wrangler SE, with a 2.5L 4 cylinder; automatic New O2 sensors, recent tune up, and rebuilt fuel injectors...
  20. TJ General Discussion
    So I have been looking into replacing the 2.5 in my 98TJ for some time now. I was contemplating upgrading to at least the I6 if not a V8, but was concerned about all the extra work and cost involved. I happened to find, and purchase a 2.5L for a very fair price recently The engine has...
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