2002 GMC Sierra 2500 Service and Repair Manual

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Covers all 2002 Sierra 2500 trims — Base Standard Cab Pickup 2-Door, SL Extended Cab Pickup 4-Door, Base Extended Cab Pickup 4-Door +4 more ·
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2002 GMC Sierra 2500 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • Base Standard Cab Pickup 2-Door
  • SL Extended Cab Pickup 4-Door
  • Base Extended Cab Pickup 4-Door
  • SLT Extended Cab Pickup 4-Door
  • SLE Extended Cab Pickup 4-Door
  • SL Standard Cab Pickup 2-Door
  • SLE Standard Cab Pickup 2-Door

Engines covered

  • 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
  • 6.0L 5967CC 364Cu. In. V8 BI-FUEL OHV Naturally Aspirated
  • 6.0L 5967CC 364Cu. In. V8 CNG OHV Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams
NHTSA #06E01000001/02/2006Component: STEERING

CERTAIN FABTECH AFTERMARKET REPLACEMENT PITMAN ARMS, P/NOS. FTS71000 AND FTS71001, INSTALLED FOR USE ON CERTAIN 2001-2006 GM C/K 2500 PICK UP TRUCKS AND SPORT UTILITY VEHICLES. THE PIN LOCATED INSIDE

Consequence

LOSS OF STEERING CONTROL COULD LEAD TO A VEHICLE CRASH WITH POTENTIAL INJURY OR DEATH.

Remedy

FABTECH WILL NOTIFY OWNERS AND REPLACE THE PITMAN AND IDLER ARMS FREE OF CHARGE. THE RECALL IS EXPE

TSB #11020816

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

TSB #11012907

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

TSB #11010544

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

TSB #11006621

Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected mo

TSB #11006421

GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the deal

TSB #11004761

This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should

TSB #11004557

This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

TSB #11002312

This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.

Showing the 8 most recent of 89 technical service bulletins on file with NHTSA.

20230115Component: AIR BAGSCrash reported3 injured1 fatalities

We were in a roll over accident going under 30mph. I was a passenger in the back seat. When I woke up I saw that the driver was hanging out the door window. The air bags did not deploy. The driver who

20190228Component: AIR BAGSCrash reported2 injured

WHILE TRAVELING ON THE HIGHWAY WE HIT BLACK ICE AND ULTIMATELY ENDED UP WITH A FRONT IMPACT WHICH TURNED INTO A 2 TIME VEHICLE ROLLOVER. BOTH FRONT SEAT BELTS AND BUCKLED DURING THE ROLLOVER AND DID N

20190228Component: SEAT BELTSCrash reported2 injured

WHILE TRAVELING ON THE HIGHWAY WE HIT BLACK ICE AND ULTIMATELY ENDED UP WITH A FRONT IMPACT WHICH TURNED INTO A 2 TIME VEHICLE ROLLOVER. BOTH FRONT SEAT BELTS AND BUCKLED DURING THE ROLLOVER AND DID N

20120121Component: SERVICE BRAKES, HYDRAULICCrash reported1 injured

GMC SIERRA 2500 HD 2002 ROTTED BRAKE LINES FAILURE CAUSED $4500 IN DAMAGE TO THE TRUCK . WRIST INJURY TO MY WIFE. OIL AND TRANNY FLUID ALL OVER DRIVEWAY STAINED. $5000 IN DAMAGE TO MY VW BEETLE RESU

20041021Component: AIR BAGS:FRONTALCrash reported1 injured

WHILE DRIVING 30 MPH, THE CONSUMER COLLIDED WITH THE VEHICLE IN FRONT OF HIS. UPON IMPACT BOTH FRONTAL AIR BAGS FAILED TO DEPLOY. THE DRIVER'S SEAT BELT FAILED TO RETRACT. THIS CAUSED THE DRIVER

Showing the 5 most serious of 164 complaints filed with NHTSA.

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