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#11
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JSoto, I was having exact same issue you posted and this solved it 100% for me
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I swear, my cars are like a girlfriend. Sometimes its a rough ride, sometimes its smooth motorin'. Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves. BUT at the end of the day, she loves it when I am inside her. _______________________ '91 850i '05 X5 4.4i '09 Clubman S |
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#12
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Cleaned Maf already. no change. It only it was that simple
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#13
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I had very similar rough idle condition that would disappear at 1K rpm or when AC compressor was engaged. The problem turned out to be a cracked valve cover.
After replacement, I did a quick 440 mile turnaround trip between Dallas and Houston averaging 71 mph and 23.5 mpg with no more rough idle. It was a surprising solution. 2002 X5 3.0 318,400 miles 2014 428i 26,000 miles 2004 325i sold at 123,600 miles 2001 325i sold at 66,000 miles 1970 Firebird - Under restoration |
#14
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Srmm....
Interesting. I literally had my trim cover off this weekend, eyeballing, planning , and a visual inspection. Did you see a crack in your valve cover visually ? I'm chasing a oil leak that does not appear to be gasket related...but the only visually spotting is under the car with a light... Last edited by jsoto; 02-27-2017 at 07:22 PM. |
#15
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I didn't see it, but the tech said it was cracked on the interior edge of the gasket surface at the rear. I was definitely losing oil from it though.
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#16
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Srmmm..I hope you sourced a used one. Maybe even had it ~beautified~ with fresh powder or paint...
See my adjacent thread re: the leak https://xoutpost.com/bmw-sav-forums/...ot-gasket.html I think we may be onto to something Last edited by jsoto; 02-27-2017 at 07:39 PM. |
#17
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So I had these exact same symptoms, and the cure for me was replacing the CCV and all related hoses/tubes. Mine were original and had 130k on them. The plastic can develop cracks and cause little vacuum leaks. Definitely not the most fun job I have ever done, but the results were well worth it. BMW master tech that I know suggested this would be my issue after telling him the list of things I had already done and he was right. Hope this helps someone out.
Sent from my VS995 using Tapatalk
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'05 X5 3.0 '06 325i '90 E30/S52 Last edited by RenaissanceMan; 02-28-2017 at 11:44 AM. |
#18
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Quote:
2002 X5 3.0 318,500 miles 2014 428i 26,000 miles 2004 325i sold at 123,600 miles 2001 325i sold at 66,000 miles 1970 Firebird - Under restoration |
#19
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Yeah, I realized that (plastic) once I saw the i6 in your sig...
Grrr...hate chasing the issues where it's not so obvious what the means to a resolution is. Just short of a |
#20
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I'm having the exact same problems and recently replaced power distribution box in the ECU box to no avail. The CCV and associated stuff were replaced when I did the valve covers. I suspect it's a vacuum leak somewhere. I also already cleaned the MAF and replaced the vanos solenoids. The motor mounts are originals but I doubt that's the problem although replacement is in the works - they're just sitting in my garage (I'm notorious for buying parts but hardly ever finding time to install them, sometimes for over a year ).
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'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M. |
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