what is this?

Asked by Feb 08, 2016 at 12:17 PM about the 1999 Dodge Ram 1500 2 Dr ST 4WD Extended Cab SB

Question type: Maintenance & Repair

Vacuum hose from intake(?) to valve
cover...what is it? Experiencing hp issues
and misfire after lots of repairs.

1 Answer

56,705

That is the PCV valve hose that vents the engine crankcase. Make sure there is no vacuum leak in the hose and that they PCV rattles if you pull it out and shake it.

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