GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: The transmission is noisy and the noise may carry into the passenger compartment.

1

Check the transmission fluid level.

Is the fluid level correct?

--

Go to Step 3

Go to Step 2

2

Add transmission fluid. Refer to Transmission Fluid Level Inspection .

Is the transmission noisy?

--

Go to Step 3

System OK

3

Check the transmission for the correct fluid type.

Is the transmission the correct type?

--

Go to Step 5

Go to Step 4

4

Drain and refill the transmission with the correct type fluid. Refer to Transmission Oil Drain and Fill .

Is the transmission noisy?

--

Go to Step 5

System OK

5

Inspect the shift control closeout boot.

Is the closeout boot loose or damaged?

--

Go to Step 6

Go to Step 7

6

Position and tighten the closeout boot to specification, or replace the boot as necessary. Refer to Transmission Control Lever Boot Replacement .

Is the transmission noisy?

--

--

System OK

7

Inspect the clutch housing for loose bolts and/or misalignment with the engine.

Is there any loose bolts or misalignment with the engine?

--

Go to Step 8

Go to Step 9

8

Tighten the clutch housing bolts to specifications. Refer to Fastener Tightening Specifications in Clutch.

Is the transmission noisy?

--

--

System OK

9

  1. Remove the transmission. Refer to Transmission Replacement .
  2. Disassemble and inspect the following transmission components for wear or damage:
  3. • Gear shift
    • Transmission gears
    • Bearings

Is there any wear or damage?

--

Go to Step 10

--

10

  1. Replace worn or damaged components as necessary. Refer to Transmission/Transaxle/Transfer Case Unit Repair Manual.
  2. Install the transmission. Refer to Transmission Replacement .

Is the transmission noisy?

--

--

System OK