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Automatic Transmission - 4L80-E - Service & Replacement GMC Sierra 1500 HD

Step-by-step instructions on "Automatic Transmission - 4L80-E - Service & Replacement" for GMC Sierra 1500 HD (2001–2006). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

46subsections
46articles
128illustrations

Type A

1 article

Type B

1 article

Type C

1 article

Type X

1 article

Condition 1

1 article

Condition 2

1 article

Condition 3

1 article

Tools Required

1 article

Electrical Function Check

1 article

Part Throttle Detent Downshift

1 article

Full Throttle Detent Downshift

1 article

Manual Downshifts

1 article

Manual 4-3 Downshift

1 article

Manual 4-2 Downshift

1 article

Manual 4-1 Downshift

1 article

Coasting Downshifts

1 article

Manual Gear Range Selection

1 article

Reverse

1 article

Manual First

1 article

Manual Second

1 article

Manual Third

1 article

Poor Acceleration at Low Speed

1 article

Poor Acceleration at High Speed

1 article

If Shudder Occurs After TCC has Applied

1 article

Composition Plates

1 article

Steel Plates

1 article

Causes of Burned Clutch Plates

1 article

Engine Coolant in Transmission

1 article

General Method

1 article

Powder Method

1 article

Dye and Black Light Method

1 article

Find the Cause of the Leak

1 article

Gaskets

1 article

Seals

1 article

Transmission Oil Pan

1 article

Case Leak

1 article

Case Porosity Repair

1 article

Clean-up — Part 1

1 article

Clean-up — Part 2

1 article

How to Use This Section

1 article

Basic Knowledge

1 article

Throttle Positions

1 article

Shift Condition Definitions

1 article

Transmission Adaptive Functions

1 article

Clearing Transmission Adaptive Pressure (TAP)

1 article

Transmission Indicators and Messages

1 article