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#11
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Quote:
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#12
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A rod knock will usually be most audible when the engine is cold; because the tolerances are loosest until the metal expands with heat. At least that's the case with most less complex V8 engines. Change that tensioner assembly, and see if anything changes. That problem is a no-brainer and may be causing contact with some other external moving parts. Good luck.
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#13
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The rod knock may not be heard when the engine is cold due to the low oil temp=more viscosity. The hotter the engine gets more audible the knock will be. but it will increase with RPM, not decrease.
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#14
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Question, when changing the water pump and thermostat, and checking alternator for problems, do the belts need to come off. I ask because I had a month ago the water pump and thermostat replaced, and the indy though I had a bad alternator but at the end it was a bad and wrong battery fit in the car by the Acura dealer where I bought the car. So maybe he left it loose or didn't adjust properly when putting it all back.
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#15
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The waterpump is electric FYI, it's not mechanical
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#16
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Guys before I bring it to the mechanic, if any of you have a 2011 and later X5 35i can you please check for me that your tensioner is not moving like mines on the second video.
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#17
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Update, it is not the tensioner is the dreaded Vanos bolts that are loose again. Now get this the Vanos recall was performed on January 31 2015 and a year later Vanos bolts are loose again sounds like the updated bolts dit not fix the problem.
After speaking in person at the dealer that performed the recall work (Paul Miller BMW in Wayne, NJ) they are washing their hands and not willing to do the repair under the 2 year warranty of the recall because I am not the original owner of the car when the recall was done. That is just a load of bull. What you guys think, my indy told me he can do the work for around $850. |
#18
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Get warranty,wait a month and take it in lol
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#19
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I'd call BMW NA if this problem was a recall indeed.
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#20
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Here is the recall info in case you any of you missed it.
| Safercar | National Highway Traffic Safety Administration (NHTSA) http://www.nytimes.com/2014/04/11/au...ines.html?_r=1 |
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clicking, engine noise, knocking, n55, tapping |
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