Welcome Visitor! Please take a few seconds and Mike1919
New Member
- Joined
- Apr 20, 2015
- Messages
- 182
- Reaction score
- 0
- Points
- 0
- Location
- Fresno
- Vehicle Year
- 1993
- Make / Model
- Ford
- Engine Size
- 4.0
- Transmission
- Manual
As the title says i cannot for the lufe of me find a vacuum leak. I have a high idle, right between 1000-1200 and the second i turn the engine off, if i remove a vacuum line from the plenum, its already lost vacuum. I tried the starting fluid trick as well as the unlit propane torch trick. I went all around thd throttle body, all along tge intake vasket as well as the plenum with an unlit torch. I hit every connection and followed the vacuum lines down to the next connection and got nothing. I also tried the plenum gasket and got no signs of a leak. Correct me if I'm wrong but the plenum should hold vacuum after the engine is shut off right? I dont know where else to look. Also my cruise control doesn't work, but i unplugged the line from the tree and capped it off to eliminate that possibility, thanks
