October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Intake Manifold Leak

An intake manifold air leak is characterized by lower than normal manifold vacuum. Also, one or more cylinder may not be operating. Start engine. Spray a small stream of water at suspected leak area. If engine speed changes, area of suspected leak has been found. Repair as necessary.