A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Need help diagnosing a problem

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Old Jan 17, 2006 | 03:12 PM
  #1  
trailertravis13's Avatar
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Default Need help diagnosing a problem

On my way home from work today I began experiencing a low rumble from the front of my car under acceleration. It seems to occur when I apply anything more than minimal pressure to the gas pedal and starts rumbling around 2800rpm. CEL came on as I pulled into my driveway. I did a search and it seems like people with similar rumblings have problems ranging from boost leak, wheel bearing, CV joint. I have about 101k on the car so I think any of these could be a possibility. Is there anything I can do to narrow this down some more? Should I drive the car at all or get it taken directly to the shop?
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Old Jan 17, 2006 | 03:15 PM
  #2  
HAudidoody (Jrsyboy)'s Avatar
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I don't think a CEL is a wheel bearing or CV Joint, so eliminate those
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Old Jan 17, 2006 | 03:52 PM
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por911's Avatar
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Default First, hook up a VAG-Com to read the codes....

My guess is at 101k if you have not done bearings(wheel) yet, your coming close. I've replaced all 4 of ours at about 75k. Post in the local forums to see if someone local has a VAG-Com that they are willing to help you out with.
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Old Jan 17, 2006 | 03:54 PM
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Default You need to check codes with VAG-COM and then decide.

I would lean towards not driving it. Pop the hood and look for obvious problems.

If you don't have vag-com, MAYBE I would limp to Autozone and have them check codes for me. Autozone will only give numbers, but a quick search on Audiworld or Ross-tech should tell you what's up.
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Old Jan 17, 2006 | 04:31 PM
  #5  
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BSK
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Default use the CC readout or the vaglocator to see whats going on. could be sparks misfiring

icm, boost leak, fuel pressure problems and tons of other engine related stuff.
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