Air-leakage: in the exhaust system, checking

Check for air leakage. See Checking for air leakage in the exhaust system .

Remedy as necessary.

Fig 1: Identifying Exhaust Leakage Check Adaptor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Was there any air leakage? 

• YES 

  Refer to Verification 

• NO 

  Refer to Fuel and residual pressures, checking