Four0Sport
Jack from JackOffRoad
- Joined
- August 26, 2004
- Messages
- 3,026
- Reaction score
- 113
- City, State
- West Virginia
- Year, Model & Trim Level
- 1993 2dr
I have eliminated the ac system as well as the IAT diaphragm on the air box lid. Do I need to retain the check valve on the vac lines for the heater mode to remain functional?
