1999 GMC Sierra 2500 Service and Repair Manual

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Covers all 1999 Sierra 2500 trims — SLE Extended Cab Pickup 3-Door, SLT Cab & Chassis 2-Door, SLT Extended Cab Pickup 3-Door +5 more ·
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1999 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

  • SLE Extended Cab Pickup 3-Door
  • SLT Cab & Chassis 2-Door
  • SLT Extended Cab Pickup 3-Door
  • SL Cab & Chassis 2-Door
  • SL Extended Cab Pickup 3-Door
  • SLE Cab & Chassis 2-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
  • 5.3L 5328CC 325Cu. In. V8 GAS 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 #07E08800024/10/2007Component: EQUIPMENT

CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHICLES LIST ABOVE. TH

Consequence

THIS CONDITION MAY CAUSE INADEQUATE SEALING AND LOSS OF ENGINE OIL, POSSIBLY RESULTING IN A FIRE.

Remedy

HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 20

NHTSA #06E04300019/05/2006Component: FUEL SYSTEM, GASOLINE

CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURE

Consequence

THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. I

Remedy

HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOB

TSB #10242252

This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.

TSB #10232287

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

TSB #10226382

This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.

TSB #10209734

This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

TSB #10190934

Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form o

TSB #10190933

Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form o

TSB #10190932

Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's

TSB #10190931

Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's

Showing the 8 most recent of 19 technical service bulletins on file with NHTSA.

20091016Component: TIRESCrash reported3 injured

EMPLOYEE DRIVING 1999 GMC 2500 PICKUP TOWING A 2008 TOWMASTER TRAILER LOADED WITH A BOBCAT 325 MINI EXCAVATOR NORTHBOUND ON I-25 AT SAN FELIPE EXIT HEARD A POP, THINKING IT WAS A BLOWN TIRE, TRIED TO

20051006Component: AIR BAGSCrash reported1 injured

DT: THE CONSUMER STATES THAT THEIR 1999 GMC C2500 LIGHT DUTY PICK UP WAS INVOLVED IN A CRASH AND THE AIR BAGS DID NOT DEPLOY. UPON FURTHER REVIEW BY GM THE VEHICLE WAS DISCOVERED TO NOT HAVE ANY AIR B

20000210Component: POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)Crash reported1 injured

THE AUTOMATIC 4 WHEEL DRIVE ACTED ERRATICALLY CAUSING THE BACK END TO BECOME LOOSE AND RESULTING IN THE CONSUMER LOOSING CONTROL OF VEHICLE, SKIDED OFF ROAD AND HIT 2 FENCE POSTS. NLM

20081008Component: LATCHES/LOCKS/LINKAGESFire reported1 fatalities

A MAN CLIMBED INTO A COMMUNITY CENTER VAN (USED TO HAUL FOOD, ALL METAL AND NO SEATS IN THE BACK), ON A COLD NIGHT AND HE APPARENTLY SET A SMALL FIRE IN THE BACK, PRESUMED TO KEEP WARM. CHILD SAFETY D

20171204Component: SERVICE BRAKES

2 YEARS AGO I HAD ALL OF THE BRAKE LINES REPLACED BECAUSE OF FAILURE DUE TO RUST AT A COST OF $1000.00 I BELIEVE THE CAUSE WAS POOR METAL IN THE BRAKE LINES AND THE WAY THE LINES ARE ATTACHED TO THE B

Showing the 5 most serious of 42 complaints filed with NHTSA.

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