Checking induction system integrity
WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
Leaks in the intake and inlet system can be detected by spraying starter gas in strategic places. If there is a leak, the engine speed will increase slightly when the starter gas enters the system.
Check the following points for leaks:
- gaskets
- hoses and hose connections
- joints
- throttle body.