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01-09-2011, 11:41 PM | #1 | |
Confoundingly Lucid
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99 328i interesting happenings ...
Hi. Got a friend who has a '99 328i. It's got an interesting problem, here's his deal. MIL lamp is lit, a scan reveals O2 Bank 1 Sensor 1 and O2 bank 2 Sensor 1. Engine idles real rough, runs fine at higher RPM.
Some history on this car - we've replaced both cam position sensors over the last 5 years, and two years ago the double VANOS assembly was rebuilt using Viton seals. When the engine is cold, there is a popping/clunking noise coming from under the intake, by the throttle body. He says he replaced both O2 sensors to no avail; and he also replaced the MAF sensor. I'm not familiar with these cars too much, so if someone has any ideas, please feel free to share!
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1988 9C1 - Modified LM1 @ 275HP/350TQ - TH700R4 - 3.08 8.5" Disc Rear - see it at http://www.silicon212.org/9c1! 2005 Crown Vic P71 - former AZ DPS - 4.6 liters of pure creamy slothness! 1967 El Camino L79/M20 old school asphalt raper Remember - a government that is strong enough to give you everything you need, is also strong enough to take everything you have. |
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01-12-2011, 09:53 AM | #2 | |
Confoundingly Lucid
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Re: 99 328i interesting happenings ...
Anyone?
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1988 9C1 - Modified LM1 @ 275HP/350TQ - TH700R4 - 3.08 8.5" Disc Rear - see it at http://www.silicon212.org/9c1! 2005 Crown Vic P71 - former AZ DPS - 4.6 liters of pure creamy slothness! 1967 El Camino L79/M20 old school asphalt raper Remember - a government that is strong enough to give you everything you need, is also strong enough to take everything you have. |
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01-12-2011, 10:25 AM | #3 | ||
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Re: 99 328i interesting happenings ...
Quote:
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01-14-2011, 12:43 AM | #4 | |
Confoundingly Lucid
Thread starter
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Re: 99 328i interesting happenings ...
__________________
1988 9C1 - Modified LM1 @ 275HP/350TQ - TH700R4 - 3.08 8.5" Disc Rear - see it at http://www.silicon212.org/9c1! 2005 Crown Vic P71 - former AZ DPS - 4.6 liters of pure creamy slothness! 1967 El Camino L79/M20 old school asphalt raper Remember - a government that is strong enough to give you everything you need, is also strong enough to take everything you have. |
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01-14-2011, 08:49 AM | #5 | |
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Join Date: Dec 2004
Location: Clarks Hill, Indiana
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Re: 99 328i interesting happenings ...
i was going to say did it sound like hammer hitting metal. so now thinking your harmonic ballancer and they do make a hell of a sound.
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01-14-2011, 11:35 PM | #6 | |
Confoundingly Lucid
Thread starter
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Re: 99 328i interesting happenings ...
Yeah, it's more like a hammer hitting the plastic of the intake, not metal. It's not the harmonic - the sound is under the middle of the intake on the driver side. Right where the throttle body is.
__________________
1988 9C1 - Modified LM1 @ 275HP/350TQ - TH700R4 - 3.08 8.5" Disc Rear - see it at http://www.silicon212.org/9c1! 2005 Crown Vic P71 - former AZ DPS - 4.6 liters of pure creamy slothness! 1967 El Camino L79/M20 old school asphalt raper Remember - a government that is strong enough to give you everything you need, is also strong enough to take everything you have. |
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