I had the rear end rebuilt, pinion and ring gears, and no more noise.
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| Author: | garver72 [ Mon Nov 19, 2007 10:43 am ] |
| Post subject: | high pitched noise from turbo |
It seems that the turbo is making a higher pitched sound than normal. At first I thought it may be in my head, but my wife also noticed it. Has anyone else had a similar experience? |
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| Author: | dgeist [ Mon Nov 19, 2007 11:06 am ] |
| Post subject: | Re: high pitched noise from turbo |
garver72 wrote: It seems that the turbo is making a higher pitched sound than normal. At first I thought it may be in my head, but my wife also noticed it. Has anyone else had a similar experience?
Is it just more normal "turbo noise" at a higher pitch or does the noise sound like it might be metallic grinding. Both have been encountered by others but have different causes. |
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| Author: | garver72 [ Mon Nov 19, 2007 5:18 pm ] |
| Post subject: | Re: high pitched noise from turbo |
dgeist wrote: garver72 wrote: It seems that the turbo is making a higher pitched sound than normal. At first I thought it may be in my head, but my wife also noticed it. Has anyone else had a similar experience? Is it just more normal "turbo noise" at a higher pitch or does the noise sound like it might be metallic . Both have bgrindingeen encountered by others but have different causes. |
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| Author: | gmctd [ Mon Nov 19, 2007 6:18 pm ] |
| Post subject: | |
Check the inlet ducting, incl the airbox, for loose clamps or leaks Check the compressor outlet ducting to the charge-air cooler for loose clamps or rupture leaks |
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| Author: | click23 [ Mon Nov 19, 2007 10:31 pm ] |
| Post subject: | |
I was just about to post the same question. Mine is coming from the rear passenger side. At first I thought it was a wheel bearing going out, but I realized that's where the exhaust is coming out. It seems to come and go with how much throttle I give it, which makes me believe it is noise from the turbo. It also it seems to go away when I turn it to the right. |
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| Author: | gmctd [ Tue Nov 20, 2007 12:14 am ] |
| Post subject: | |
By inlet ducting, I mean from the airbox to the compressor inlet - if it sounds like the whooshing, hissing of air under pressure, it's the hose between the compressor outlet and the charge-air cooler Turning right would lean the engine to the left, which could displace the ducting. |
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| Author: | Uffe [ Tue Nov 20, 2007 5:50 am ] |
| Post subject: | |
Just an idea. Did you recently fit an oil catch can/provent filter to your CRD? That might cause the new sound as the inlet will be less cluttered and give a little more boost when the old crud has been cleared (with right foot action). I have noticed my turbo more since I added my oil catch tank. Just an idea! |
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| Author: | click23 [ Fri Nov 23, 2007 1:00 pm ] |
| Post subject: | |
No provent, but now I am thinking it is tire noise from being out of alignment. |
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| Author: | Uffe [ Sat Nov 24, 2007 5:48 am ] |
| Post subject: | |
Easy to check for. Put the car in neutral and rev the engine. Or better still, go offroad and put it in low range and go up a hill, that way you can check if its the tyres or the engine revs which makes the sound. |
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| Author: | ATXKJ [ Sat Nov 24, 2007 9:21 pm ] |
| Post subject: | |
FYI -mine had a whistle after I re-installed a Provent (took it off for a dealer repair) - finally tracked it down - vacuum leak from a tear in the hose from air box to turbo. naturally no hoses in Austin or in Texas - closest is in Missouri - it'll be here Tuesday |
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| Author: | click23 [ Sun Nov 25, 2007 9:25 pm ] |
| Post subject: | |
Well, no provent installed and I had an alignment yesterday, and it is still there. Took my wifes step dad, who was a dcx tech and now is at sears where he did the alignment, and he thinks its either a wheel bearing or the noise is coming from the rear differential. I am going to change out the rear end fluid this week and if that doesn't fix it I am goint to let the dealer deal with it. I changed the out the rear brake pads last week. |
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| Author: | click23 [ Fri Feb 15, 2008 6:13 pm ] |
| Post subject: | |
I had the rear end rebuilt, pinion and ring gears, and no more noise.
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| Author: | chrispitude [ Fri Feb 15, 2008 6:35 pm ] |
| Post subject: | |
Thanks for the update, click23. - Chris |
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| Author: | click23 [ Mon Feb 18, 2008 3:57 pm ] |
| Post subject: | |
Well I spoke too soon. It is my wifes car, so I don't drive it that much. This weekend we head out, and is only the second time I had driven it since I had it in for service, and the noise is back. 
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