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#11
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Just to be clear what exactly should I look for? Am i checking if they match under normal driving? just when the car plays up and the revs drop and check then? I just want to make sure i know what im looking for as the mechanic that's looking after it "will get back to me" he has no idea at moment. |
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#12
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No change in level demand there should be no change in the torque converter lockup you're looking for is the but input RPM of the torque converter or transmission Should Be steady when you're going a steady speed
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#13
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Another note,
I have the glow plugs replaced a few months ago. Scanned the car today and there is the glow plug relay error showing. I cleared it and it comes up after starting the car. Would this have any effect of the revs dropping while the car in under a slight load like i described earlier? |
#14
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When I was driving last night all the RPM matched when driving steady and under acceleration. I will do more of a check on the weekend
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#15
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Quote:
Regarding the "failed" glow plugs - if you have recently replaced them, did you also replace the glow plug controller? Many failures thought to be glow plug failures are actually a failure of the glow plug controller output. I have recently replace all six glow plugs and the controller.
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#16
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No just the plugs were replaced however the error is still there. So id say the controller needs to be done soon.
I was just curious if the relay would cause this as another thread says the plugs are also used under light load to maintain cylinder temp for smoothness. The revs dropped this morning (cold weather and car) first driving under light load on an incline but after 10-15 mins of driving it didn't play up at all. |
#17
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Quote:
Mine does seem to run a bit smoother than when it had four dead plugs (or four dead controller outputs - same thing in the end) but I changed the exhaust manifold on the same day so I can't say exactly which repair made this change.
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#18
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Ah no worries. I'll check the TC and engine RPM readings and go from there on the weekend.
Thanks for that |
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