A Volvo PCV job is a pretty manageable project for the typical do-it-yourselfer. Learn more here about how to do one, how long it might take, parts you need, and when and why you should make sure this is done to keep your Volvo running well.
Tips on doing a Volvo PVC job on your 850, S70 or V70
“I have not removed the injectors on any of them. The only thing that is tricky is getting the fuel return line off since the hose is a little short. I loosen the upper clamp – it is easier to get to the upper clamp than it is to get to the clamp on the fuel pressure regulator – and then just complete yanking the hose off as the intake manifold is coming off.
If you do wind up removing the rail I would have a full set of O-rings and the plastic injector caps on hand.”
Volvo’s Positive Crankcase Ventilation (PVC) is a breather system that regulates the hazardous fumes your vehicle puts off. In modern Volvos, an oil trap does the same thing.
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