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Very rough idling after two weeks of stand still S60 2001

posted by  KlausC on  Wed Aug 6 10:46 CST 2008
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last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

After a few hours the fuel pressure should drop to zero, normal. Do you have newer Volvo spark plugs?
The fuel pressure regulator could be drying out, check the vacuum line which connects to the front of the intake manifold - the other end follows the fuel line back to the fuel pump. There should be no liquid gasoline in that vacuum line.
Immediately after startup, look at the exhaust pipe. Is there black smoke coming out - too much gas?

Klaus
--
I still miss my 164 and my 854T. Just driving a V70R :)






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