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#21
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Quote:
If there is overvoltage condition the transmission computer will switch to safe mode and there will be a definitely clear code showing overvoltage. |
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#22
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A recommendation: check for codes again in a week. I had an intermittent water pump not reaching commanded speed for about 6 months. Doesn't cause a MIL. Gave up the ghost- seized. Stranded and 1st tow bill in over 20 years. Those codes may be a warning.
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Dave '05 325xi '10 E70 35d '85 911 Carrera '66 911 Work in progress '91 Chevy C1500 '95 Jeep Cherokee ‘18 Jeep JLU |
#23
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I really do think that most integrated circuits have input voltage regulators.
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Believe nothing read or heard without verifying it oneself unless it, Weltanschauung congruent, fits ones worldview. |
#24
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I have had 2 N62 powered cars recently that will have similar symptoms. All is good at idle and low RPM. Once the RPM jump over ~2000 the trnsmission will go in safe mode. Having ISTA connected while driving I find the voltage to reach 18-19v. Overvoltage codes were to be found in most modules,7-8 at least. |
#25
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Got the car back today, overheating issue fixed. New water pump and changed the thermostat any way, radiator flushed, oil changed, battery reprogrammed and all codes clear , and coding of some comfort features all for $1300 not bad.
After reprogramming the battery the alternator started behaving normal. Car went back to 24 mpg highway. Thanks all for your input. If you are in NJ I recommend Vanos Motorsports in Carlstedt, N.J. to do the job. |
#26
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I would keep an eye on your oil level AND oil quality.
If in 500 miles you see nothing going on between coolant and oil, you dodged a bullet. Nice shout out to Vanos Motorsports. |
#27
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I definitely will. SAV is driving like brand new.
Last edited by Quatro40; 01-08-2016 at 10:45 AM. |
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Tags |
alternator problems, head gasket overheating, thermostat, water pump |
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