secondary air pump has become very loud...
Is there something I can do to fix this, or do I have to keep driving my car sounding like a Hoover for the first two minutes of driving?
Its a 98 328i auto, and I've just noticed this to become much louder in the past month or so. Does this just need to be rebuilt?
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98 328i ECIS CAI / Tint 35% / 17" Gun-Metal Gray M Countour style wheels with Polished chrome lip and 235/40/17 Toyo Proxe T1-R's / Silverstar bulbs - head and fog
System - Calrion ProAudio HU / MB Quart RA 1000 Sub amp, RA 4200 4 ch amp / MB Quart PCE 213 5.25" seperates front / JL Audio VR 6.5" seperates in rear / Stinger SPDH5 Pro-Hybrid 5 farad Capacitor / Alpine Type X 12" DVC Sub in a slot ported box