DEFINITION: The system is leaking exhaust gasses.

1. Inspect the exhaust pipe connections.
2. Tighten as needed. Refer to Fastener Tightening Specifications in General Information.

Is the leak gone?

System OK

Go to Step 2

1. Inspect for damaged or improperly installed gaskets.
2. Replace as needed.

Is the leak gone?

System OK

Go to Step 3

1. Inspect for loose exhaust flange connections.
2. Tighten as needed. Refer to Fastener Tightening Specifications in General Information.

Is the leak gone?

System OK

Go to Step 4

1. Inspect for burned or corroded exhaust pipes.
2. Replace as needed. Refer to Intermediate Pipe in Engine Exhaust.

Is the leak gone?

System OK

Go to Step 5

1. nspect for leaks in the exhaust manifold.
2. Tighten bolts or replace the manifold as needed. Refer to Exhaust Manifold Replacement in Engine Mechanical.

Are the repairs complete?

System OK