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#81
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#82
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However, the troubleshooting route you have been following should find the core issue and I don't want to interfere with that.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#83
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Also, I am hearing some random rattle sound from that side of the engine (passenger side, Bank1). It is not continuous though but still may point out to an exhaust issue. I could not pinpoint it since I am the only one working on it and I have to keep my foot on the pedal to keep the car running. I still need to look inside the exhaust with a borescope to see if there is some sort of blockage. Today I may also test the pressure on that side. Thanks, Ozzie
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X5 4.4 01 |
#84
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It is possible that you damaged the cat when removing/installing the exhaust.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#85
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Engine left is driver's side. Left and right don't change side based on where you bare standing. Case in point. If you are facing me my right arm is on your left side it is still my right arm.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#86
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I tested the pressure on bank 1 exhaust and there was simply no pressure. I am reading there should be something around 1.5 - 2 psi but there was nothing there. I ran the car a little longer and today I saw several more errors : -22 function, inlet camshaft control bank 2 -21 function, inlet camshaft control bank 1 -72 signal, camshaft position sensor bank 2 Since the camshaft sensors are new, those errors make me think there is really something wrong with the wiring harness or DME module is just screwed up. I have an extra DME module but I read that I have to copy the EPROM from the old one to the new one to recognize the key etc. Not sure which software is used for that (I have INPA and some others which came with it) and how it is done I am really not sure.. Thanks, Ozzie
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X5 4.4 01 |
#87
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Looking at forums for these set of errors, I came across this post :
https://www.bimmerforums.com/forum/s...l-bank-1-M62TU Last time I checked (after transmission work), there were no timing chain guide pieces in oil pan. Should I look again? Thanks, Ozzie
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X5 4.4 01 Last edited by turquise1; 06-14-2020 at 08:21 PM. |
#88
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It's not so likely for N62 to have timing chain problems like M62.
That said if the chain tensioner is not doing its job, you will have all sorts of timing issues like can cam too advanced
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#89
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Hey Andrew, I have an M62 on my X5 01 4.4 Ozzie
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X5 4.4 01 |
#90
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Oh duh I confused your case. In that case for sure check the tensioner situation. You said something about rattle right bank and thats the main symptom of weak tensioner. If you never replaced it's over due and use only OEM. Weak tensioner is enough to cause virtually all of the symptoms you described.
The errors will usually be bank one. The reason is that when the chain isn't under enough tension the cam gets advanced by the valve springs. It's very very obvious when you crank the engine by hand: each time an intake valve gets past tdc the cam SNAPS forward a good amount like 10°.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
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