Brad's Car Manuals
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C70 2D Convertible, Automatic
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Engine Control System - Removal & Installation, System Checking (Convertible)
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Checking exhaust system
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Procedure
Checking exhaust system: Procedure
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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.