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  1. Engines & Drivetrain
    Jeep knocks from the time I start it until I shut it off. Lifters has been changed. Only had 55000 miles when started has 70000 now. Could it be flexplate?
  2. Engines & Drivetrain
    Hello Everyone, This is my first post! (Sorry if formatting isn't spectacular) So, I grabbed an agreeably priced 2000 Cherokee 4.0 with 157,000 miles a few months ago as my first project car. I've been a car enthusiast since I can remember but never really turned any wrenches. That all changed...
  3. Engines & Drivetrain
    Anyone know if this is a knock or what else it could be? heard the noise for a while, but seems to have gotten a bit louder the past few days. It's a 2003 4.0 6 cyl. Here is a vid: youtube.com/ watch?v=WbjVYVXG1ek
  4. WK Grand Cherokee & XK Commander Forum
    Hello, im new to the forum but i was really hoping to get some insight on a problem that i have been having. Over the last few months my 2005 Jeep Grand Cherokee 5.7 Hemi with 190,000 miles has been occasionally taking a bit of time for me to crank over the engine 5(sec). So i went ahead and...
  5. ZJ Grand Cherokee Forum
    Hi Guys, Over the past few days my GF's ZJ has started to vibrate when you accelerate to over about 2800 rpm. Even if you barely touch that rpm,I feel a horrible rumble as it changes gear around that point. It's also vibrating at idle, but it's not like a misfire. It's more like how my XJ felt...
  6. XJ Cherokee Technical Forum
    Hey, I am one of those "thread readers" but rarely post. However in researching an engine noise I have been experiencing I have found that finding any info has been a mess. So in an effort to condense relevant info I have made this thread. So this is what I have found out so far (with edits to...
  7. XJ Cherokee Technical Forum
    Hey guys, I've looked everywhere trying to determine the cause of the sound my Jeep is making. Unfortunately the term "knock" always brings up the worst case scenarios and finding the correct result is pretty challenging. Anyways, here is the sound it is making: If I start it up cold, there...
  8. ZJ Grand Cherokee Forum
    Its been bugging me, so if someone can tell me what they think id be happy. I figure its just a lifter tick, but my dad keeps calling it a knock... Its not that loud. Zj does have 233k tho.
  9. XJ Cherokee Technical Forum
    I just bought this 2000 Cherokee with 140,000 miles for $600. The car has a bad knock and I am trying to figure it out. The video below should help. I checked the torque converter and the bolts were on tight. I did NOT check for cracks, it slipped my mind. I am thinking that could be it, but...
  10. Engines & Drivetrain
    Hi all, I've been cruising the forum lots but this is my first post. I bought an 03 tj sport 4.0 in January and it needed new freeze plugs. Job done, but I did the rear main while the engine was out. Now I've started it up tonight, first time after the work was done, and it sounds like a...
  11. Engines & Drivetrain
    I have a '99 Wrangler with 100k miles. Whenever I'm driving and go over a bump or slow down to a stop, there's this knock which seems to be underneath the drivers seat or center console. I was thinking maybe the transfer case linkage? Has anyone had this problem/know how to fix it?
  12. XJ Cherokee Technical Forum
    My 4.0 liter Cherokee is having a very loud knock. Whether it's in idle or not. Any ideas what the problem might be and how to fix it? I saw another thread said the Jeep 4.0 liters are very prone to piston slapping. I can attach a video of the problem if needed. Any help would be appreciated...
  13. WK Grand Cherokee & XK Commander Forum
    I have a 2008 3.0L CRD and I have started to hear a faint clicking/knocking noise coming from underneath the car. It is usually a single click/knock. I first noticed a faint knock when I would start the car, but nothing as far as driving it. I now have started to notice that when I first go to...
  14. TJ Wrangler Technical Forum
    Hello, I have a 97 2.5L TJ with about 119K miles. It has developed this rattle on start up. Many times it takes about 15-30 seconds before it starts making noise, then slowly it gets louder and louder until the engine warms up. It mostly goes away after the engine reaches full operating temp. I...
  15. YJ Wrangler Technical Forum
    Its got the 2.5 4cyl and its a automatic. 4 wheel drive works. Thats about what I know about it....... Engine has a knock. It goes away when I put the car in drive or apply the gas?????? Oil pressure only goes to about a quarter on the gauge. yes Im planning on a oil pump. I have plans to go...
  16. TJ Wrangler Technical Forum
    Hey all, I've got a 1997 TJ SE. its got the stock Aisin AX-5 manual tranny in it. A loud knock has developed in it, and it only happens in reverse. It is quite loud. The knocking stays on a consistent rhythm, and speeds up as i go faster, so im pretty sure that it is something broken on a...
  17. TJ Wrangler Technical Forum
    Ok, so a few months ago I started having an issue with a knock in my bell housing. It would only occur after I had driven around for a while, and seemed to correlate to the amount of RPM's. This noise would also only happen while in drive. Not reverse, neutral, or park. Took it to a shop to look...
  18. XJ Cherokee Technical Forum
    I have a 2000 XJ with the 4.0. I recently started hearing a knock from the engine. It apears to be from the AC compressor, but I am not 100% sure. It stops for a minute when I turn on the air conditioning. I was wondering if anyone had any suggestions about what I could do to make sure it...
  19. YJ Wrangler Technical Forum
    Got a loud knock....wayyyyyy beyond tapping. pulled the valve cover cuz it sounded like a loose or broke *** rocker arm....all good under there. any suggestions? runs good...softens up a bit when i decelerate but it just started two hours ago and will not go away.
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