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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Tue, Aug-07-2012, 11:13:56 PM   #21
englishtom1596q
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Default Re: Driving with a bad Rear Main Seal?

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I would also suggest you get a stethoscope and pin point the noise before proceeding. Have someone change the RPM while you listen. That is not a RMS.
as stated above, get a stethoscope and go to work. posting videos is not going to help at all and we can't pinpoint the problem from a video.

as i said i'm still tracking my noise down but haven't had time to work on it with my new job. you just need to dig into it and isolate the problem
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Old Wed, Aug-08-2012, 01:43:42 AM   #22
Estrader
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Default Re: Driving with a bad Rear Main Seal?

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as stated above, get a stethoscope and go to work. posting videos is not going to help at all and we can't pinpoint the problem from a video.

as i said i'm still tracking my noise down but haven't had time to work on it with my new job. you just need to dig into it and isolate the problem
I just did that. I had the wife reproducing the sound for several minutes while I poked around. Touched many things but nothing sounded like a magnified version of that video.

I couldnt really touch the pulleys because fan was spinning in the way
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Old Wed, Aug-08-2012, 06:31:17 PM   #23
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Default Re: Driving with a bad Rear Main Seal?

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That sounds amazingly like a pulley, it is linked directly to the RPM. If it does go away when you remove the cap I suggest you have a vacuum leak somewhere in the PCV system. There are a number of places it could be. I would also suggest you get a stethoscope and pin point the noise before proceeding. Have someone change the RPM while you listen. That is not a RMS.
yea the fact that the noise goes away after pulling the oil cap makes me thing its CCV valve related...although i havent got any codes, misfires, rough idles, or blue smoke from the tailpipe. gonna swap it out along with the hoses over the weekend and see what happens...
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Old Wed, Aug-08-2012, 09:21:48 PM   #24
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Fixing common things and refreshing the various systems that are known to need work is a great strategy. You will spend more up front but the car will have fewer issues and will be more reliable, and you'll enjoy it more.

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Old Fri, Aug-10-2012, 01:26:23 AM   #25
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Default Re: Driving with a bad Rear Main Seal?

Ok so I just changed out the old PVC or ccv valve and both hoses to new ones. High pitched sound is still there when car is warmed up. I tried removing the oil cap and dipstick and this time I get a whistling sound coming out of there. I have no idea what this means now. Before when I removed the oil cal I just felt a little suction. Now I get suction and whistle. I have no idea if this is supposed To be good.
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Old Fri, Aug-10-2012, 02:21:06 AM   #26
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Default Re: Driving with a bad Rear Main Seal?

Just checked the idler pulley. Has resistance when u try to spin

Last edited by Estrader; Fri, Aug-10-2012 at 05:22:19 AM.
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Old Fri, Aug-10-2012, 12:21:36 PM   #27
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Has the valve cover gasket been changed? When you mentioned clicky noises at one point I thought you might be hearing valve train noise. I think its rare but at least one cracked valve cover has been discussed. If the plugs haven't been changed (every 10k item) get some and change them, and check for oil in the holes and around the outside of the valve cover.

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Old Fri, Aug-10-2012, 01:31:03 PM   #28
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Default Re: Driving with a bad Rear Main Seal?

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Has the valve cover gasket been changed? When you mentioned clicky noises at one point I thought you might be hearing valve train noise. I think its rare but at least one cracked valve cover has been discussed. If the plugs haven't been changed (every 10k item) get some and change them, and check for oil in the holes and around the outside of the valve cover.

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no, still original gasket...its on 80k miles original..no oil seeps or holes around. plugs were just changed but the noise happened before i did the plugs..also, it may have been a typo but there isnt any clicking noise at all..just a high pitched whine.
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Old Mon, Aug-13-2012, 07:13:14 PM   #29
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Default Re: Driving with a bad Rear Main Seal?

just an update here:

over the weekend i decided to take a closer look at the belts and pulleys. removed main belt and found it was cracking so i replaced it. Also both idler pulley and tensioner pulley were both done..spinning freely so i replaced them both as well. The noise still remains...now its pretty frustrating.

I also sprayed a whole can of carb cleaner on the throttle body, hoses under the intake manifold, and pretty much anything i could get at...there was no change in idle
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Old Mon, Aug-13-2012, 07:37:13 PM   #30
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Default Re: Driving with a bad Rear Main Seal?

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just an update here:

over the weekend i decided to take a closer look at the belts and pulleys. removed main belt and found it was cracking so i replaced it. Also both idler pulley and tensioner pulley were both done..spinning freely so i replaced them both as well. The noise still remains...now its pretty frustrating.

I also sprayed a whole can of carb cleaner on the throttle body, hoses under the intake manifold, and pretty much anything i could get at...there was no change in idle
Where does the noise *sound* like it's coming from?
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Discussing Driving with a bad Rear Main Seal? in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)