David S.
Well-Known Member
- Joined
- February 25, 1999
- Messages
- 139
- Reaction score
- 1
- City, State
- Utah
- Year, Model & Trim Level
- 2020 Altima AWD
Last year I removed the throttle body and use the Valvoline throttle body cleaner. I remember looking into the intake manifold (that is the upper intake manifold right?...i don't have my book handy and I am at work) and seeing buildup on the inside. After reading other posts on power foam products, I would like to clean this out. Is it safe to spray a cleaner into this or do I have to remove the upper manifold to clean it?