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.

Checking exhaust system: Procedure

Fig 1: Checking Exhaust System For Leaks Between Cylinder Head & Rear Heated Oxygen Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Check exhaust system by spraying soapy water on all joints and connections between cylinder head and rear HO2S.
Only extremely small and slowly increasing bubbles are permissible.