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Old February 23rd 08, 06:19 AM posted to alt.autos.audi
Kevin McMurtrie
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Posts: 131
Default rough idle a4 1996 2.8 12v, now hesitates during acceleration?

In article om>,
(Devious!) wrote:

> Nightmare car from the start. Had rough idle prob for a year now,
> mostly in cold. Through tons of $ at her, turned out to be idle
> valve. Doh! All vacuum lines,breather hose, redone, new TB. Now
> after two weeks of smooth sailing, idle is extremely irradic, and
> now hesitates while accelrating. Audible "ticking" sound from
> bonnet, is this a distributor/coil problem? Also put in new plugs,
> no effect, but plug wires look old.
>
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An ignition problem gets worse with compression. It would run well at
idle but shake at high throttle with low RPM.

Did anything get gunked up while you had a faulty idle valve?

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