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Unread 09-19-2013, 06:29 AM   #16
rollmodel1
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Quote:
Originally Posted by capt205 View Post
Where my noise was coming from...I thought it was the alternator.
Thats exactly what I thought too and thats why i replaced the alternator this week. But changing your oil pump stopped the noise with no problems? I might just go ahead and order an oil pump after I check to see if the bolts are backed out from the manifold to the head. It may be a combination of both i guess.

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Unread 09-19-2013, 08:06 AM   #17
MoneypitCJ5
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I had a Fox body mustang do the same thing one time...turned out the aftermarket breather I stuck in the aftermarket valve covers had a PCV valve in it. And the 5.0 has a factory PCV valve in the back of the intake, so they fought each other.

Don't ask hold long it too me to figure THAT out...
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Unread 09-19-2013, 09:45 AM   #18
capt205
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Quote:
Originally Posted by rollmodel1 View Post

Thats exactly what I thought too and thats why i replaced the alternator this week. But changing your oil pump stopped the noise with no problems? I might just go ahead and order an oil pump after I check to see if the bolts are backed out from the manifold to the head. It may be a combination of both i guess.
Pull the valve cover and run the motor while checking flow to the pushrods. Then you can inspect the rocker where the pushrod makes contact, for signs of galling. That's where my damage was, and the squeal was the dry pushrod wearing through the rocker.

It took about 50-75 miles for it to do enough damage that it would start ticking real bad, then start back firing on acceleration.

The squeal was intermittent during that time, and only after the 3rd time did I put 2 and 2 together.

I had a broken OP gauge so I did not know how bad the pressure was, so after I put in the new mechanical gauge, and saw how low, I put in the new pump, and no more issue.
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Unread 09-19-2013, 12:48 PM   #19
bradleybrb
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Originally Posted by rollmodel1 View Post
Bradley did you vacuume leak squeal start and stop or was it continuous?
Yes, the noise would start and stop. My thinking now looking back is that it would squeal until the motor warmed up then quit. I am guessing where it was leaking would expand when it got heated up just enough to make it quit. Hope you can find it. Those kinds of things can drive you crazy, especially with the wife looking over your shoulder!
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Unread 09-19-2013, 01:06 PM   #20
hp_lovecraft
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I had this problem for years. Squeal at idle, after warmed up. And it was always worse in the summer, and after driving at highway speeds for any length.
I first figured it was the belt, or maybe the carb. I changed them both (needed to anyway), but the problem persistent. Oil and fuel pumps had been changed, but did not effect the squeal.

Since it only happened at idle, I figured it had to do with the intake, since it would only squeal when the manifold vac was 15 or higher. When the squeal was loudest, the engine ran hotter, and the idle creeped up, signs of an intake leak, running lean. I replaced all the vac tubing, and even rigged up a cold-air intake system (using Dodge Dakota plenum), but that made no difference.

The general consensus was that the cast-iron intake manifold must either need a new gasket, or it was cracked. I bought the seal kit, and went to remove the bolts..... and I discovered they were all LOOSE! I tightened them up, and the squeal instantly vanished. I suffered through that for 2 years..... and was just some loose bolts! Thats owning a Jeep in a nutshell
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Unread 09-19-2013, 02:13 PM   #21
rollmodel1
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Originally Posted by hp_lovecraft View Post
I had this problem for years. Squeal at idle, after warmed up. And it was always worse in the summer, and after driving at highway speeds for any length.
I first figured it was the belt, or maybe the carb. I changed them both (needed to anyway), but the problem persistent. Oil and fuel pumps had been changed, but did not effect the squeal.

Since it only happened at idle, I figured it had to do with the intake, since it would only squeal when the manifold vac was 15 or higher. When the squeal was loudest, the engine ran hotter, and the idle creeped up, signs of an intake leak, running lean. I replaced all the vac tubing, and even rigged up a cold-air intake system (using Dodge Dakota plenum), but that made no difference.

The general consensus was that the cast-iron intake manifold must either need a new gasket, or it was cracked. I bought the seal kit, and went to remove the bolts..... and I discovered they were all LOOSE! I tightened them up, and the squeal instantly vanished. I suffered through that for 2 years..... and was just some loose bolts! Thats owning a Jeep in a nutshell
AS soon as I get home today that is the first thing I'm doing! I havent had a chance to mess with it this week after I put the new alternator on. I pray thats whats giong on and the bolts just need snugged up! If thats the case I owe you all a beer!
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Unread 09-19-2013, 02:27 PM   #22
CJ7KAHUNA
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Originally Posted by rollmodel1 View Post
AS soon as I get home today that is the first thing I'm doing! I havent had a chance to mess with it this week after I put the new alternator on. I pray thats whats giong on and the bolts just need snugged up! If thats the case I owe you all a beer!
Be sure and post your findings. Should be interesting.
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Unread 09-20-2013, 06:17 AM   #23
rollmodel1
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Well fellas, that still didnt work. I tightened every bolt on the manifold and she is still whistling at me. So to give everyone an idea, i videoed it last night and put it on the jeep forum and on you tube. If you would please go to this link and listen for the tea kettle sound in the video. Trust me you'll hear it. http://www.youtube.com/watch?v=CvJyb...ature=youtu.be
If you dont find it on there, i have posted it to the Jeep Forum and it should be under my profile. Thanks!
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Unread 09-20-2013, 06:22 AM   #24
Matt1981CJ7
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Have you tried the garden hose trick? It works.

Matt
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Unread 09-20-2013, 06:36 AM   #25
rollmodel1
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Originally Posted by Matt1981CJ7 View Post
Have you tried the garden hose trick? It works.

Matt
Not yet but I plan to this weekend. Last ngiht was the only night i've had to actually tinker with it a second but that was cut short because we were throwing a birthday party. did you listen/watch the video?
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Unread 09-20-2013, 06:45 AM   #26
Matt1981CJ7
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Originally Posted by rollmodel1 View Post
Not yet but I plan to this weekend. Last ngiht was the only night i've had to actually tinker with it a second but that was cut short because we were throwing a birthday party. did you listen/watch the video?
I did listen to it. It sounds internal to me, but it's difficult to tell listening to it on a computer.

Good luck, and keep us posted.

Matt
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Unread 09-20-2013, 07:20 AM   #27
rollmodel1
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I'll def keep you posted incase someone else has this problem!
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Unread 09-20-2013, 07:32 AM   #28
2Xtreme
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Quote:
Originally Posted by Matt1981CJ7 View Post
....It sounds internal to me....
I agree with Matt.

Doesn't sound like air to me, i.e. not a vacuum leak.
Sounds more like metal on metal.

Alternator bearing maybe?
Try running it with the belt off....
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Unread 09-20-2013, 07:50 AM   #29
rollmodel1
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Originally Posted by 2Xtreme View Post
I agree with Matt.

Doesn't sound like air to me, i.e. not a vacuum leak.
Sounds more like metal on metal.

Alternator bearing maybe?
Try running it with the belt off....
I just put a new alternator on it this week and it was doing it before i put that on. you dont think it could be the belt isnt tight enough possibly? That was going to be my next try. If thats not the case, then I believe I'm going to put a new oil pump on it.
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Unread 09-20-2013, 07:59 AM   #30
2Xtreme
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Quote:
Originally Posted by rollmodel1 View Post
...you don't think it could be the belt isnt tight enough possibly?
Doesn't sound like a belt squeal to me.

Water pump?

You definitely want to try the garden hose trick to at least locate the general area it is coming from before yous tart throwing parts at it.

...just be careful of rotating parts.
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