chengny
Full Access Member
- Joined
- Feb 22, 2012
- Posts
- 4,084
- Reaction score
- 1,026
- Location
- NH
- First Name
- Jerry
- Truck Year
- 1986
- Truck Model
- K3500
- Engine Size
- 350/5.7
I bet that this condition is most noticable at extremely low RPM, disapppears at mid-range and then (if you really load it up and go to WOT) it will return due to low manifold vacuum.
The vacuum in the intake manifold peaks when at cruising speed (i.e when the throttle plate nearly closed and the engine is at a steady state).
These are just my theories and should not be taken for Gospel.
The vacuum in the intake manifold peaks when at cruising speed (i.e when the throttle plate nearly closed and the engine is at a steady state).
These are just my theories and should not be taken for Gospel.
