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High pitched sound -- Is that my alternator?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=56902		 Page 1 of 1
Author:  shelbydz [ Mon Nov 15, 2010 11:50 am ]
Post subject:  High pitched sound -- Is that my alternator?
Hi All,

I was driving to work this morning. I heard a *pop* then a constant sort of whirring sound coming from my engine bay. I was like 1/2 mile from work, so I coasted the rest of the way in. I did notice, however, that I had NO power. The Jeep refused to get above 1800 rpms.

I'm pretty sure it's a bearing in my alternator, but I'd like to get another opinion:

it SEEMS that the sound is coming from the passenger side of the engine bay. (I don't actually know where the alternator is located)
I didn't lose power steering
I didn't see any leaks and my temp was still slightly below half.
The belt was still attached.

I was able to start the car back up, but the sound was still there. Maybe I should crack the alternator with my hammer.

Thoughts? Does my diagnosis sound right?
Author:  onthehunt [ Mon Nov 15, 2010 11:56 am ]
Post subject:  Re: High pitched sound -- Is that my alternator?
Boost hose blew.
Author:  audiboy86 [ Mon Nov 15, 2010 12:11 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
I agree check both hoses leading from your intercooler. And i bet you were blowing black smoke when you try to push it hard.
Author:  shelbydz [ Mon Nov 15, 2010 12:33 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
ohh, nice.

Yeah, I didn't check the tailpipe for black smoke.

I should be able to splice in a bit of exhaust piping with some heavy duty clamps to patch that up.

thx
Author:  audiboy86 [ Mon Nov 15, 2010 12:41 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
Just be careful i tried to sleve mine with radiator hose and it just split more. But good luck with it i hope it works. But i would order a set of Samcos asap that will solve your problem for good. Plus you get to choose a color and replace both hoses with higher then OEM standards.
Author:  shelbydz [ Mon Nov 15, 2010 12:55 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
Cool, I'll do that! Where can I get those hoses? I may have to wait until after Christmas, so hopefully my kludge fix can hold until then (:

[EDIT]
NM,
found this:

http://www.turbowholesale.com/product.php?productid=15771&cat=84&page=4

Unless you all know of somewhere cheaper (:
Author:  reka12 [ Mon Nov 15, 2010 1:42 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
I have a set of used hoses. When I bought my CRD a couple of months ago, and after getting slightly paranoid from reading these posts and not knowing the service history, I thought I would be proactive and bought a set of the new style OEM hoses. Well, low and behold the hoses I took off were the new style because the one had the red innerliner. The hoses are in good shape. Make me an offer.
Author:  audiboy86 [ Mon Nov 15, 2010 3:40 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
That is about the cheapest i have seen them i got mine off of ebay from Greece and they cost me 250 plus 30 for shipping. And if you price it out against your dealers price for those hoses you are looking at close to 300 for the pair. So go with the Samcos and dont look back more then worth the money you pay.
Author:  shelbydz [ Mon Nov 15, 2010 4:22 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
I'm thinking I need to get these replaced like tomorrow. Is there anywhere in Denver, Colorado that sells these? The CRD is my only vehicle. I could go to my dealer for the OEM, but they're not good about carrying the diesel parts.

thx
Author:  reka12 [ Mon Nov 15, 2010 5:38 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
I would imagine there are several jeep dealers in and around Denver. Call. I am sure you will find a pair.
Author:  shelbydz [ Mon Nov 15, 2010 7:49 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
So after some careful inspection of the hoses and listening to the car more, I'm 99% sure it's the turbo.

At idle, there is a slight grinding sound. It's when I try to rev up that you can hear the whinning. I can record the sound and post if people are interested.

I noticed oil in both of the ic lines. Now in a gas powered turbo car, this usually means that the turbo is going bad. Is this the same for diesel?

I've got a car I can borrow until I can figure this out, and I'll start a new thread with those particular questions.

Thx
Author:  KaspinCRD [ Mon Nov 15, 2010 8:09 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
oil inside the cac hoses is most likely from the CCV. now if you have oil in the exhaust or on the exterior of the turbo, then you need to worry.
Author:  flash7210 [ Mon Nov 15, 2010 10:08 pm ]
Post subject:  Re: High pitched sound -- Is that my alternator?
Quote:
At idle, there is a slight grinding sound. It's when I try to rev up that you can hear the whinning. I can record the sound and post if people are interested.


Yes, post the sound clip if you can.
One mans "grinding sound" maybe another mans "perfectly normal." :lol:

The true test of a bad turbo is to take the intake tube off, stick your fingers into the turbo
and try to wiggle the impeller shaft.
Author:  nursecosmo [ Wed Nov 17, 2010 7:27 am ]
Post subject:  Re: High pitched sound -- Is that my alternator?
All CRDs have oil in the CAC hoses unless they have had the EHM mod performed. Even the ones with a provent can have a small amount of oil.
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