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#11
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_________________ David 2005 4.4i Sport 1986 Porsche 911 |
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#12
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At some point the chain tensioner was redesigned by BMW. If your X5 has the original tensioner and because the tensioner is not expensive I suggest buying a new chain tensioner from BMW. Good to replace it but I would continue to troubleshoot to verify the core problem prior to addressing the chain tensioner.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#13
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Well, guess I'll find out next week. Taking the X to a recommended indy Monday. I'll let you know what they say...
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_________________ David 2005 4.4i Sport 1986 Porsche 911 |
#14
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Shop called a little while ago and said they can't hear the noise. It was not that cold this morning, so they're going to try again tomorrow morning. They did manage to find my mystery coolant leak. Apparently, the radiator has a small leak as does a gasket behind the flex plate requiring the tranny to be pulled. Ten hours of labor for that alone... Ouch.
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_________________ David 2005 4.4i Sport 1986 Porsche 911 |
#15
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Hey David is your noise constant til it warms up ?
Reason I'm asking, mine doesn't make any noise at startup but after a minute or two when engine warms up a bit and the RPM drops a little, it's like the engine has a hiccup, and for 3 seconds or so I hear a tick tick tick noise then gone. That's it....only on cold startup. I know it's a different engine but wondered if that's the kind of problem you have ..
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2006 X5 4.8is LeMans Blue / creambeige interior Prod.date: 2006-06-21 |
#16
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Mine makes the noise if it's cold (as in the 30's or colder) and it does it right away. It will still make the noise after the engine is warmed up, just more subdued. Sounds like a "muted diesel". I can go to the drive through at McDonald's at lunch time and can hear the noise bouncing off the building wall. Not really loud mind you, but definitely noticeable. I can hear it from inside the car when first driving off when cold . Don't hear it going down the road at speed as the road noise is masking it I'm sure.
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_________________ David 2005 4.4i Sport 1986 Porsche 911 |
#17
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Ahh got ya, seems like mine could be the lifters but like I said, only does it for 3 seconds or so.
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2006 X5 4.8is LeMans Blue / creambeige interior Prod.date: 2006-06-21 |
#18
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Quote:
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#19
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Very slow leak. I've had to add coolant a couple of times the past several months. Been smelling coolant intermittently, but no sign of leakage that I could find on driveway, or by looking at belly pan.
As odd as it sounds, I'm REALLY hoping the ticking noise IS the timing chain. I'd really like to get that done before the warranty ends as I don't relish doing that one at home, especially since my garage won't get built for another couple of years.
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_________________ David 2005 4.4i Sport 1986 Porsche 911 |
#20
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Hi David. I recently had the same issue. I had a very loud "lifter tap" type sound when the engine was cold that totally went away once warmed up. I actually replaced my oil relief valves (did all 6) and everything is gone. Nice and quiet when starting now. Seems they trap a little oil in the top of the motor so it doesn't have to travel all the way from the pan on a cold start. Was like $120 and maybe 25 minutes to replace them all. Just sharing my experience.
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