knocking 4.0l - JeepForum.com

 
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post #1 of 13 Old 06-06-2013, 08:05 PM Thread Starter
200kwj
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knocking 4.0l

I have a 02 wj with the 4.0l. What started out as what i thought was a lifter ticking til it got warm and got oil has suddenly turned louder and wont stop. It use to stop after about 5 mins of it running...does anyone any i idea what it is?
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post #2 of 13 Old 06-06-2013, 08:07 PM
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Post in Engines & Drivetrain

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post #3 of 13 Old 06-06-2013, 08:31 PM Thread Starter
200kwj
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What is that?
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post #4 of 13 Old 06-06-2013, 08:38 PM
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Looks like you found it.

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post #5 of 13 Old 06-06-2013, 08:44 PM Thread Starter
200kwj
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Yea thanks man
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post #6 of 13 Old 06-07-2013, 01:30 AM
jumbojeepman
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Rod knock. I've pulled apart a couple of 4.0L with massive play in the rod bearings that were unbelievably still running.
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post #7 of 13 Old 06-07-2013, 07:09 AM
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Could be a broken piston skirt.

ah,beer the cause of and cure to all of lifes problems ...Homer J Simpson... I am the guy in the red jeep!
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post #8 of 13 Old 06-07-2013, 07:52 AM Thread Starter
200kwj
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Yea thats what i thought when i checked where the tick was coming from and it sounds more toward the bottom end
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post #9 of 13 Old 06-07-2013, 08:17 AM
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how about the torque converter bolts loosening? that was an issue on a friends last week. sounded bottom end. but was a 15 min fix. search here for that issue. you will find tons.

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post #10 of 13 Old 06-08-2013, 12:18 AM
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I'm thinking the flex plate maybe ?

Isn't that what you are talking about too Captain ?
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post #11 of 13 Old 06-09-2013, 06:13 PM
captainauti
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Quote:
Originally Posted by phitmein View Post
I'm thinking the flex plate maybe ?

Isn't that what you are talking about too Captain ?
yes it i s

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post #12 of 13 Old 06-10-2013, 05:23 PM Thread Starter
200kwj
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Ended up being a piston skirt
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post #13 of 13 Old 06-11-2013, 10:46 AM
98muddyjeep
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Quote:
Originally Posted by 200kwj View Post
Ended up being a piston skirt
As long as the cylinder isn't damaged in anyway you should be able to throw in a new set of piston and bearings cheap and be good to go,I had to do that about 30,000 miles ago,cost me about 500 with getting the head redone. I also already had the gasket set so the saved me a few bucks.

ah,beer the cause of and cure to all of lifes problems ...Homer J Simpson... I am the guy in the red jeep!
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