my 1999 Volvo V-70 It was running fine.I took it on a 120 mile freeway trip.It started to run really rough and when I accelerate it blows thick black smoke,when it levels off the smoke dissipates until I need to step on it again.It does the same thing from a stop.Does anyone have any ideas as to what it could be? I had the oil changed less than 300 miles ago all the other fluids are where they should be.It didn't overheat. Thanks Ed
running rich or a valve seal let loose...
if its dumping fuel does it lay down when you accelerate? pan evac system pcv..but that on release of power .check anyway..
Is there a significant loss of power? Could be the turbo, could have something to do with the PCV being clogged up, but I don't think that it would blow black smoke like that.
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