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Old 09-08-2008, 10:05 PM   #1
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Major Issue?

So I am having this awful sound come from my tranny I belive. It sounds almost like something is ither loose or grinding. It is really bad when I start it in the morning and gets a little better later on but not much at all. Also it does not make the sound when i am in neautral. Im thinking my tourque converter...Any ideas?

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Old 09-08-2008, 10:14 PM   #2
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torque converter? you have an auto tranny, right?

did you check the fluid level? it should be too low. i would make an ATF and filter change before i check some other things.

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Old 09-08-2008, 11:30 PM   #3
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I just started having the same exact problem this week. I hope it isn't $$$$$. The fluid level is fine. Please PM if you figure it out before i do.
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Old 09-09-2008, 06:24 AM   #4
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Mine whines all the time when I first start it in the morning then it goes away after it warms up. It's been doing this since I bought it and I have had the Jeep for 1 1/2 yrs. no issues (fluid is fine and no metal flakes, etc).

It sounds like a power steering pump on an old Ford right?
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Old 09-09-2008, 05:38 PM   #5
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That's about right. What is it?
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Old 09-09-2008, 08:55 PM   #6
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Yea toruque converter why did you ask like Automatics dont have them lol..fluid is fine just had it flushed out and its not a whinny sound its a grinding or loose sound kinda like a cat sounds when it goes bad
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Old 09-10-2008, 06:30 AM   #7
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Are you sure your transfer case is disengaged? Have you tried shifting into 4 wheel drive and then re-check in 2 WD? I'm wondering if maybe your T-Case is engaged.
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Old 09-10-2008, 09:38 AM   #8
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Yea my 4wd is fine works perfect. i just dont understand this and its driving me crazy lol...I'll pull up somewhere and it sounds like my trans is guna fall out...Im guna see if I can post a video of the sound
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Old 09-10-2008, 09:47 AM   #9
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Old 09-10-2008, 09:48 AM   #10
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Ok so the whiney sound is my alternater I know that..But listen for the grinding sound
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Old 09-10-2008, 09:56 AM   #11
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Are you guys using atf+4 or synthetic in your auto trans??? if not you should be. the dealer put atf 3 in my trans and i had all kinds of issues until i made them put atf 4 in it. from what ive learned about auto trans over the years, its either low fluid, incorrect fluid, filters are clogged, or your F'd.

with that much noise in the video i would pull the pan and check for metal. My jeep used to make the powersteering noise only on cold mornings. and when i would shift into neutral it would go away. it rarely does it anymore since the atf4 and filter change.
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Old 09-10-2008, 11:19 AM   #12
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X2 - service the trans and recheck. That sound is not what I would expect to hear under the trans....whine maybe...grinding ...no way.
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Old 09-20-2008, 10:50 PM   #13
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Ok guys I might be in this problem pretty deep now..well I re serviced my trans tightened every bolt possible on my exhaust..and still can not find the problem..until today...Somebody at the jeep show I went to said It was a Rod knot and I need to replace the motor..Anybody agree with this or have any input on this problem
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Old 09-22-2008, 08:40 AM   #14
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If it's a connecting rod bearing failure you will notice a drop in oil pressure and metal flakes/chunks in your oil. Basically, the motor will need to be torn down and based on how bad the bearing failed, the crank shaft and rod may need replacement.

However, if it's a wristpin connection (connection point between the connecting rod and piston) it's more manageable. If it's caught early, it can be repaired. However, if the wristpin separates you will cause catastrophic damage. The connector rod could go through the cylinder wall and you will need a new motor for sure if that happens.

Drain and inspect your oil. If you notice excessive metal flakes or chunks, then you have a major problem. Do not run the engine anymore until you fix the problem.
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Old 09-22-2008, 11:53 AM   #15
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Ok now should I use a thicker to see if that helps out a little bit..Somebody said to use straight 30..What would you use?
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Old 09-22-2008, 02:30 PM   #16
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Quote:
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Ok now should I use a thicker to see if that helps out a little bit..Somebody said to use straight 30..What would you use?
Changing the weight of the oil will not solve the problem. 10W-40 or 10W-30 should be fine. Straight 30 will run in the summer but not advised in the winter. It gets too cold in south Jersey for straight 30 - IMO.

- What is your oil pressure gauge reading?
- What does the oil look like from the dipstick or pan? Any metallic flakes?
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Old 09-22-2008, 04:43 PM   #17
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Shift the Tcase to neutral (not the tranny), does it make it then?
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Old 09-22-2008, 05:03 PM   #18
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...Somebody at the jeep show I went to said It was a Rod knot and I need to replace the motor..
Just so ya know, that term he used was "rod knock". Wow that's a gnarley grinding noise I hope it's not expensive. But even if it is a rod knocking, that just means it's time for a lower-end overhaul, not necessarily an engine replacement. Going to a different viscosity like straight 30 weight won't help, don't even bother with that suggestion. Good luck with it and I hope it's not too expensive to fix.
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Old 09-23-2008, 03:11 PM   #19
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Ok so I now gave an oil change and saw no metal or anything odd..Looks perfect. I am now officially going crazy lol
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Old 09-23-2008, 05:53 PM   #20
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I think its not a rod knock, that makes a very distinctive sound and it is slower than your sound, and if it goes away after it warms up its not a rod knock. My buddy had that same noise in his ranger and we thought it was the torque converter by the "ear to screwdriver test." A few weeks later his trans started spewing fluid out of the output shaft. What year is it, mabye there is a TSB out on it, if not I say try getting your converter rebuilt.
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Old 09-23-2008, 06:14 PM   #21
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I'm new to Jeeps so I don't know how everything comes together... but is there a way to check your flywheel and torque converter? I'm used to having a cover that I can remove that will expose these... It kinda sounds like the flywheel might be outta balance or something close in nature right there. A grinding, hard like almost smacking/grinding?
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Old 09-23-2008, 06:24 PM   #22
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I dont know if there is a cover or not on a wranger, but on most autos Ive worked on had them. Try the screwdriver trick right on the bottom of the bell housing, and then in different areas, itll narrow your area down real quick. If you dont have a long screw driver a piece of hose will work too.
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Old 09-23-2008, 06:47 PM   #23
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But, if the sound don't happen in neutral.... Hmm... Imma have to start to wonder about something behind the cat... in the tranny... Park?
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Old 09-23-2008, 07:04 PM   #24
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On my buddies truck, the sound was present in both park and drive. Dont know man, good luck.
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Old 09-23-2008, 07:10 PM   #25
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Get under your Jeep and look, you'll see the cover over the flex plate (flywheel on a manual tranny) area. I don't recall if it can be removed without also removing the starter though.
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Old 09-23-2008, 08:14 PM   #26
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Ok guys so i am now into day 214239493 of this project lol and I have excluded the following..Not my Cat nor anything to do with exhaust 2. No flakes of any metal so no rod bearing and also does not make sound when driving..Only when stopped 3. There is not a tiny unicorn inside poking holes and shitting in my filters...So now Im thinking this...Is there anything in the oil pan?? like something that is wielded on? Im going to drop the pain 2morrow..This is now a epic problem for me
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Old 09-24-2008, 07:20 AM   #27
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Indulge me for a moment... I need some history:

- Was this sound present when you bought it? (I'm assuming no, but I need to ask)
- What were the sequence of events that lead up to this situation? (were you off-roading, mud bogging, drag racing....ok, maybe not drag racing, your buddy borrowed it and brought it back like this). Give me some details surrounding this issue.
- How does it drive on the highway? Does it still make noise? Any excessive vibrations being noticed?
- What is your oil pressure like? What is the value?
- What is your temp gauge like? What is the value?
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Old 09-24-2008, 08:48 AM   #28
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It never made this noise b4..
It started making this noise after i got off the highway one day..
I do feel a little vibration..Like the motor shaking a little..
Oil gauge reads a little above normal but not much at all
and my temp is perfectly fine.....
It drives perfect it only does this when im in drive or reverse and at a stop but for some reason it does not do it when I drive
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Old 09-24-2008, 09:18 AM   #29
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More stupid questions:

- did you check the motor mounts?
- did you check the exhaust manifolds, flanges and y-pipe for cracks, separation or clearance against the frame etc?
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Old 09-24-2008, 10:20 AM   #30
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Mounts are good..The exhaust is clearing everything now I do have a some what loose flange on the upper part of the down pipe that connects to the header...But I really dont think that would be the noise because its not coming from there.Its coming from the oil pan

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