olnick
Full Access Member
- Joined
- Feb 7, 2019
- Posts
- 51
- Reaction score
- 24
- Location
- Milford NH
- First Name
- Nick
- Truck Year
- 1978
- Truck Model
- c15
- Engine Size
- 1982 350 4 bolt mains
had the "blend door" vac can go bad replaced it checked all other functions/ installed back in truck ran all functions off of a vacuum pump. All systems worked as expected with selected option on heater control. Now with the engine vacuum hooked up none of the controls work? best I can get at the vacuum canister is 15# inches? Nothing else changed just the bad can prior to that the heater control worked fine? Is the vacuum can supposed to have a 1 way valve to hold/maintain the vacuum with the engine off? Mine does NOT.
Olnick
Olnick
