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Author Topic: Slight Shaking on idle, air leak?  (Read 857 times)

Offline moukie

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Slight Shaking on idle, air leak?
« on: January 28, 2022, 02:01:12 pm »
Hi! Hoping someone can help. Had the timing belt replaced last year by a reputable specialist. I have noticed the car shaking a bit on idle and there is a slight misfire logged on cylinder 4. Seems to be fine under load just on idea. Other issue is pulling away in 1st there sounds like an air leak. I have done all the usual things, replaced plugs, coil packs, Diverter Valve, PCV. Anyone experienced soemthing similar... any pointes. I did wonder about the injectors....

Offline pudding

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Re: Slight Shaking on idle, air leak?
« Reply #1 on: January 28, 2022, 05:24:49 pm »
That does sound like injectors.  Misfiring at idle is when you notice it the most.  If there's a big enough air leak to cause problems, it usually flags a 'system too lean' code.


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D