what would cause this noise?? - JeepForum.com

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post #1 of 23 Old 11-19-2013, 11:29 AM Thread Starter
lsuguy4
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what would cause this noise??

https://www.youtube.com/watch?v=fp24...e_gdata_player

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post #2 of 23 Old 11-19-2013, 12:37 PM
NonRubicon
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If the noise is coming from the oil pan sump (which appears to be in the video), that would be the oil pump making the racket. It would appear that it is time for a new oil pump.
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post #3 of 23 Old 11-19-2013, 01:09 PM
biffgnar
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I'm at work and can't watch the You Tube video, but two questions. Does it sound like a laughing monkey? Is your jeep an 05/06 (fill in your profile by the way)? If the answer to both of those is yes, then you need to go to TJ Tech and read the thread on the OPDA (oil pump drive assembly) issue.

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post #4 of 23 Old 11-19-2013, 03:18 PM
jokerchief462
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Its a diesel????

It could be a rod, timing chain, piston slap or the oil pump but I never heard a pump make noise before. It is time to investigate by removing the pan.

Great video but fill in the profile.

Good Luck.

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post #5 of 23 Old 11-19-2013, 04:14 PM
bumperthumper
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It does share striking resemblance to a diesel lol.

Need moar vid. What's it sound like when you rev it up? Did you lose power?
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post #6 of 23 Old 11-19-2013, 05:52 PM Thread Starter
lsuguy4
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It does sound like a diesel. I have already replaced my timing chain already motor has 122. When its cold you can only hear it. When its warm it soumds normal like any other engine. I dont use a fram filter. Had oil pan off before and a good friend thatsba mechanic was pushong up and down and side to side against the pistons. No play in them. Crank pulley does wobble a little. After timing chain fix the noise went away for a few days no knocking or ticking at all. 3 days later the same diesel sounding knock was back.
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post #7 of 23 Old 11-19-2013, 05:55 PM Thread Starter
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This is actually my jeep making the noise. Heres a video of it cold start up.
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post #8 of 23 Old 11-19-2013, 05:59 PM
bumperthumper
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Let it sit for a few, take the valve cover off and check the lifters. Also, does it go away with rpm?
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post #9 of 23 Old 11-19-2013, 06:04 PM Thread Starter
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Yes if go up to 2500 its gone. I teied seafoam oil addictives, but its coming from the bottom end. Thats where it seems like its the loudest also the front too. I use a solid piece of pipe and put it everywhere I could to see if I could pin point it and I got nothing. Btw I habe no lose in power. Back tires will spin if I got on it
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post #10 of 23 Old 11-19-2013, 06:06 PM Thread Starter
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Whatever it is it has got louder of the past months. That video was from a few months ago. Since its starting to get colder here you can hear it more im thinking.
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post #11 of 23 Old 11-19-2013, 06:09 PM Thread Starter
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Its a 2000 sahara with 122 miles 4.0
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post #12 of 23 Old 11-19-2013, 08:13 PM
bumperthumper
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Check your lifters. That's all I can think of. Anything in the bottom end would cause loss of power and it wouldn't go away.
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post #13 of 23 Old 11-19-2013, 08:52 PM Thread Starter
lsuguy4
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I dont think lifters would make a noise all around the motor. Its gotta be wrist pins, or bearing
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post #14 of 23 Old 11-19-2013, 09:20 PM
bumperthumper
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Well first of all, it very well could reverberate around the oil pan and block. Second, a wrist pin or bearing wouldn't go away when warm, And it especially wouldn't go away above 2500rpm.

Whatever you want to do dude. Don't come on the internet asking for help and not take the advice lol
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post #15 of 23 Old 11-20-2013, 05:51 AM Thread Starter
lsuguy4
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I am taking the advice. Im going to pull the vavle cover this weekend! Thanks yall for the help. When I do pull it I will take picks and let yall know what I find
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