GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect the following components for looseness:

    • The hangers
    • The heat shields

Are any of the components loose?

--

Go to Step  2

Go to Step 3

2

Tighten all the fasteners to specifications. Refer to Fastener Tightening Specifications .

Has the noise and vibration stopped?

--

System OK

Go to Step  3

3

Inspect for misaligned components.

Are any of the components misaligned?

--

Go to Step  4

--

4

Align the components. Refer to Exhaust System Alignment .

Inspect for the following conditions:

    • Bent or damaged hangers
    • Bent or damaged brackets
    • Bent or damaged clamps

Has the noise and the vibration stopped?

--

System OK

--