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My A4 judders/jerks and rpms jumps up and down when below 2000rpm

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Old 09-28-2011, 10:36 PM
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Default My A4 judders/jerks and rpms jumps up and down when below 2000rpm

I have a problem with my Audi A4 2.0 2004 Multitronic.The juddering is felt when taking off and it goes on as long as i am lower than 2000rpm. The rpm also jumps up and down when below 2000rpm. When above 2000rpm the car drives fine and the rpm is stable. Today i went on manual mode and the car drives just fine, it jumps a bit but i think its normal.

Has anyone experienced this type of problem? any ideas, is this a gearbox problem or something else? i have tried many forums but no one has a clear answer. Someone has suggested spark plugs…
Old 09-29-2011, 08:31 AM
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If it works fine in manual, it is certainly not the spark plugs. Have you downloaded codes?
Old 09-30-2011, 04:33 AM
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Yes you are right i changed the spark plugs and they could not solve the problem.. I have not downloaded the codes yet.
Old 10-03-2011, 10:28 PM
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More trouble now. The juddering is getting worse. The car jerks violently every 5 seconds. As it jerks you can also see the rpm fluctuating. When changing the plugs i found some oil in the plugs. What are the effects of oil in the plugs chamber? Apparently a gasket was missing (due to negligence of the previous owner) and the oil was leaking into the oil chamber. Can this be cause of my problem?
Old 10-13-2011, 06:46 AM
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i scanned my car. no faults were reported.. i planning to change the transmission oil. is this advisable?
Old 10-13-2011, 11:02 AM
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Oil where the spark plugs go means the valve cover gasket is shot. There is no gasket unique to the spark plug. Still don't think this would cause the shuddering.
Old 10-13-2011, 11:34 AM
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Unplug the MAF and see if the problem goes away or stays the same.

Jason
Old 11-19-2011, 04:06 PM
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Did you find a solution to your problem? Perhaps a faulty but not failed coil pack? Perhaps a vacuum related problem, a hose or junction that is leaking?

I take it you did not get an error code or even a check engine light?
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