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RE: '98 A6 2.8 won't start- mechanics are at a loss...
Daniel Jones <firstname.lastname@example.org> wrote:
>I read all of the other replies, We have a HUGE problem with the 30v
>engines flooding here in the states. This is due to high carbon buildup on
>the pistons. The carbon breaks off and holds valves open. The reason for
>the loss of compression on a crank is that the cylinders are washed down.
> Pull the plugs, dry out the cylinders with compressed air. Add 5-10cc of
>engine oil to the cylinders along with fresh plugs. At this point the
>engine should start. If it does not catch in 5-10 seconds of cranking then
>hold the gas to the floor and just crank. It may take 2-3 minutes of
>cranking but chances are it will fire. Take for a long road test to clear
>out the chambers and then clear the 20 or so codes set in the process. By
>the way I see this about once a day at the dealership. Good Luck.
Thanks Daniel, it seems to be a new problem for the guys here. Maybe our
gas doesn't allow this much carbon buildup?