GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: A shudder during acceleration from 0-24 km/h (0-15 mph)

1

Inspect the universal joint angle in order to determine of the universal joint angle is incorrectly set or excessive.

Is the universal joint angle incorrectly set or excessive?

--

Go to Step 2

Go to Step 3

2

Add or remove transmission mount shims as needed.

Is there a shudder during acceleration?

--

Go to Step 3

Go to Step 5

3

Inspect the flanges for loose or missing bolts/screws?

Are there loose or missing bolts/screws in the flanges?

--

Go to Step 4

Go to Step 5

4

Replace or tighten the bolts/screws to the specified torque.

Is there a shudder during acceleration?

--

Go to Step 5

System OK

5

Inspect the universal joints for wear.

Are the universal joints worn?

--

Go to Step 6

--

6

Replace the worn universal joints.

Is there a shudder during acceleration?

--

--

System OK