One of the daily driver is missing at idle, the same one that need a pinion seal replace, tranny leak fix etc etc. The list goes on and on. Otherwise it is a good car. Anyway, it is missing at idle, not all the time. It seems to happen more often with a long idle, like stopping at traffic light for a while. The engine is warmed up already.

I am planning to change out the primary and secondary filters, check the hoses for air leak, and do a diesel purge. What else can I do or test to get to the root of the problem?

Any suggestions are appreciated.

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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

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