My vacuum isnt what it used to be. replace lines, still sucks. when driving my cruise cant keep up, u can feel its trying. give the truck gas and the vents turn off, Ideas?

 

fix your plenum leak..that will fix your problem entirely!

 

Fixed the plenum yet?

 

ok god i dont want to do that, again. ****

 

Have you done it before?

 

Bad check valve(s) ? https://dodgeforum.com/forum/2nd-gen...ild-vents.html

 

Not sure about the Rams but my Dakota has a vac reservoir under the wiper cowl that stores vac for the WOT and cruise situations because the engine builds very little vac at the higher rpms. If it gets a crack in the plastic tank you will have all kinds of problems...even with the heater controls.