GM Service Manual Online
For 1990-2009 cars only

Vibration or Rattling

Step

Action

Value(s)

Yes

No

1

Inspect the following components for looseness:

  1. The hangers
  2. The heat shields
  3. 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 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 Exhaust System Alignment.

Inspect for the following conditions.

  1. Bent or damaged hangers
  2. Bent or damaged brackets
  3. Bent or damaged clamps
  4. Has the noise vibration stopped?

--

System OK

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