Discussion
Got a 350i and like a t*#t at BBWF i said had no problems,big mouth and shut now comes to mind.Had a problem starting,charge battery it starts,jump leads it starts,been away for a week starts first time take it for a spin popping noise on full rev's,next morning wont start not even a click or ing' light? any ideas a part from the matches?
Sounds very similar to a problem I had last year. My car would start OK and run fine until I buried the throttle at which point it popped, banged and misfired. Ease back on throttle and ran OK but next morning absolutely nothing, not even an ignition light. Charged battery and all was well for a few miles until it started over again but this time noticed that voltmeter had dropped from 13+ volts to just under 12. Turned out to be faulty alternator even though charging light not illuminated at any time.
jamo said:
Sounds very similar to a problem I had last year. My car would start OK and run fine until I buried the throttle at which point it popped, banged and misfired. Ease back on throttle and ran OK but next morning absolutely nothing, not even an ignition light. Charged battery and all was well for a few miles until it started over again but this time noticed that voltmeter had dropped from 13+ volts to just under 12. Turned out to be faulty alternator even though charging light not illuminated at any time.
What can happen is the diode blows which allows current to flow "backwards"(diodes are like one way switches) causing the battery to drain. The ignition light will be out when your driving but glow when the ignition is off. Battery drains and ignition light obviously goes out. You need to look for the light on before you get out of the car to find this one.
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