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Old 04-11-2001, 10:20 AM
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goldenbear goldenbear is offline
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Join Date: Mar 2001
Location: NorCal
Posts: 442
Where to start?

I experienced symptoms similar to yours about 4 months ago. Unfortunately, the rough idling for me was due to a faulty #6 fuel injector and a leaking head gasket near the #1 cylinder. Both replaced. Additionally, I had quite a bit of surging at idle. The vehicle would consistently surge between 500-800 rpms. This lead to the diagnosis of the faulty IP.

1. Does the rough idle calm down as the engine temp rises?
2. Is the car "hammering" consistently?

'04 ML500 - 53k, Inspiration Edition, Desert Silver
'11 Audi A4 Avant - Brilliant Black
'87 300SDL sold
'99 C280 Sport sold
'85 190E 2.3 sold
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