GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect the following components for looseness:

    â€¢ The hangers
    â€¢ 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.

    â€¢ Bent or damaged hangers
    â€¢ Bent or damaged brackets
    â€¢ Bent or damaged clamps

Has the noise and the vibration stopped?

--

System OK

--