GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: The transmission does not shift smoothly or without difficulty into another gear.

1

Check the clutch pedal travel.

Is there sufficient clutch pedal travel?

--

Go to Step 3

Go to Step 2

2

Remove any clutch pedal restrictions.

Does the transmission shift hard?

--

Go to Step 3

System OK

3

Check for air in the clutch hydraulic system.

Is there air in the hydraulic system?

--

Go to Step 4

Go to Step 5

4

Bleed the air from the clutch hydraulic system. Refer to Hydraulic Clutch Bleeding in Clutch.

Does the transmission still shift hard?

--

Go to Step 5

System OK

5

Inspect the transmission shift control for binding.

Is the transmission shift control binding?

--

Go to Step 6

Go to Step 7

6

Replace the transmission shift control. Refer to Shift Control Assembly Replacement .

Does the transmission still shift hard?

--

--

System OK

7

Check the transmission for the correct type transmission fluid.

Is the correct type fluid being used?

--

Go to Step 9

Go to Step 8

8

Drain and refill the transmission with the correct type fluid.

Does the transmission still shift hard?

--

--

System OK

9

Inspect the clutch pressure pate and/or clutch driven plate.

Is the clutch pressure plate and/or clutch driven plate worn or faulty?

--

Go to Step 10

Go to Step 11

10

Replace the clutch pressure plate and/or clutch driven plate. Refer to Clutch Pressure Plate and Clutch Driven Plate in Clutch.

Does the transmission still shift hard?

--

--

System OK

11

  1. Remove the transmission. Refer to Transmission Replacement .
  2. Inspect the transmission for an internal bind, possibly caused by one of the following:
  3. • Shift forks
    • Selector plates
    • Synchronizers

Is there an internal bind?

--

Go to Step 12

--

12

  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 .

Does the transmission shift hard?

--

--

System OK