Originally Posted by lomita
There's a big fat rubber hose I found today between the firewall and engine. Routed from engine manifold port, then routed from passenger side to driver side and forward near thermostat housing to a metal vacuum line system on bracket.
The car was bogging cause the vacuum was collapsing the soft rubber hose. I put some stiff rubber fuel hose in in place of the thin rubber oem part and car runs great again.
is he talking about the pcv line?