1. S

    Replace 4cyl engine in my YJ Wrangler

    We've got a 1990 YJ Wrangler(2J4FY19P4MJ____) that came to us with a broken 5 speed tranny and a questionable rebuilt 4 cyl. My son drove a 4 cyl Wrangler on a used car lot and found it to be a major Wimp from a performance standpoint. Rather than throwing $ and labor into getting the 4cylmotor...
  2. J

    2.5l engine swap

    I new to the jeep world and this group BUT not a stranger to pulling wrenches So this is the question hopefully someone can help me out I have a older (1986) jeep comanche with a 5 speed AX-5 transmission im wanting to install a newer (1995) yj 2 5L engine BUT its fuel injected is there a...
  3. J

    Engine is going bad, what options for replacement?

    So I have an 07 wrangler with a 3.8 v6 the engine is going, and I am going to need to replace it. if I can not find a direct replacement, what other options do I have for engines that will bolt up to the tranny and that the pcm and wiring harness won’t be an issue? motor mounts are not an issue...
  4. K

    2005 Grand Cherokee 4.7L V8 Oil Pressure Light

    Hi all. I recently completed a job on our 2005 Jeep Grand Cherokee (4.7 V8). I had popped a rocker on the 8th cylinder, and the valve seats were busted on two others. (i have pictures). I replaced both cylinder heads with remanufactured, new everything inside the cylinder heads (valve, cams...
  5. S

    A little more pep

    Hi All, I've looked in the various forums but have yet to find anything related to how we can get a little more "pep" in our 2020 Jeep Wrangler Unlimited Sport S 4WD. Not looking to go crazy, and definitely not looking to tear down an engine, but has anyone come up with a way to add some more...
  6. J

    Engine rebuilt

    Just rebuilt most of my engine (3.8 from 2008 jeep). Now the compression is showing 120lb at all cylinders And a code came up for cam sensor. Is it possible that Cam sensor can cause this.
  7. TerryMason

    Tried seafoam on my wife's SUV

    My wife has a GMC Acadia, and it was in need of a tune up. I did plugs, coils, and decided to try (for my first time) seafoam. I read the instructions on the can -keep the RPMs at 2000 and spray it into the intake, then let things soak for 15 minutes. Start it up and drive like you stole it...
  8. J


    I just bought a 06 Jeep Wrangler, 4.0L I6 and it has started to jerk pretty violently when accelerating in low gears. Doesn’t happen if I take it slow. Check engine light also came on. Is that the engine missing due to either bad fuel or air supply? I’m a very novice mechanic but up for doing it...
  9. N

    1993 Wrangler Engine Click

    have a 1993 Jeep Wrangler. I’m getting a slight clicking noise in the engine area. It is a 4 cylinder engine and everything seems to be working fine, I just wasn’t sure if I should be concerned. It does it when I idle but not sure about when I’m moving. Nothing to bad but just thought I’d put a...
  10. T

    1996 4.0 inline six Cherokee "Interference engine"?

    I'm pretty sure my 4.0 '96 Cherokee just broke the timing chain, not while under load, but at start. I'm about to dig into it, but I would like to know if this is an "interference engine"?
  11. M

    question regarding an engine issue

    not sure if this belongs in this thread or another, new here, so i figured i'd just post and find out. anyways, i have an engine issue. i keep getting a code 303 i think, or 103, either way its a piston misfire in the third cylinder. i was wondering if anyone has come across this before with...
  12. D

    Check engine light came on after purchase

    So I recently just bought a 94 YJ with a 4.0l straight 6 with 134k miles on it. When I test drove it there was no check engine light on but when I took it home the next day and washed it the engine light came on with error code 21 & 33. 33 had something to do with the AC which it doesn't even...
  13. R

    Putting a 2002 Liberty 3.7 V6 into a 07 WK 3.7 V6

    Hi everyone, I am a newbie here and I just got a blown motor 2007 WK 3.7. Currently, I need to find an engine to replace it. I found a good deal from 2002 Liberty 3.7 V6, which has a blown gasket that I am going to rebuild. May I know what are the precautions I should consider when...
  14. bradleyheathhays

    Holy cow..main crank shaft pully loose on my 4.0 engine

    The 4.0 inline 6 engine in my '96 Cherokee has 188 k miles on it and (I thought) the serpentine belt or something close by has been squeaking badly for a month now. Tried all kinds of idler pulley tension adjustments and the squeaking continued. I go to start it today and the serp belt jumps...
  15. bradleyheathhays

    Holy cow..main crank shaft pully loose on my 4.0 engine

    Loose harmonic balancer Have a '96 XJ where the harmonic balancer just got off kilter enough that it blew the serp belt off track. I thought it was my serp belt that's been making noise all this time but I guess it's been the balancer. It's come loose and migrated forward some so that the...
  16. M

    Converting 04 Grand Cherokee to 4x4 using 03 Grand Cherokee 4x4 engine & drive train

    Converting 04 Grand Cherokee to 4x4 using 03 Grand Cherokee 4x4 engine & drive train I am the original owner of an 04 Grand Cherokee Limited 4x2 that needs a new engine. I've found an 03 Grand Cherokee Laredo 4x4 with 120k miles for sale for $1,800. It runs and drives fine but the body is beat...
  17. Y

    2004 Liberty won't start after running 45 minutes - HELP

    Hi Guys - hopefully someone has some idea what's going on because I am stumped. My 2004 Liberty starts on a cold engine no problem, if I take a short drive and stop the engine, same thing. However when I have been driving about 45 minutes, if I turn the engine off - it won't turn over and...
  18. J

    2010 Jeep Grand Cherokee 3.7 p303 code help

    I had the p303 code and changed out the very old and worn out plugs it is running better but still blowing a lot of white smoke out tail pipe and engine light is still on about to do a new scan today to verify same code or new any help here please not sure what the smoke is about except maybe a...
  19. M

    2000 jeep hard to start rough idle...

    I have a 2000 Jeep Grand Cherokee 6cyl with the following problems... It is hard to start - always Rough idle - always Knocking or popping sound from engine - intermediate Lacks power on acceleration, popping sound - intermediate Engine light comes on and goes off Recently changed the...
  20. JJs 88 Wrangler

    88 Wrangler for sale

    Anyone looking for an 88 Wrangler? I'm looking to sell my Jeep. I live in northeast NJ. Engine only has about 15k on it.