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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Diagnostic Information and Procedures >> Restricted Exhaust >> Diagnostic Aids

Diagnostic Aids

WARNING:

Refer to Hot Exhaust System Warning .

For dual exhaust systems a quick check of exhaust flow will help determine which side of the exhaust system is restricted. The side that has less exhaust flow is the side that will be suspect, and diagnosis should begin there.