2008 Chevrolet Avalanche Service and Repair Manual

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Factory-Grade Data

2008 Chevrolet Avalanche 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

  • LS Crew Cab Pickup 4-Door
  • LT Crew Cab Pickup 4-Door
  • Base Crew Cab Pickup 4-Door
  • LTZ Crew Cab Pickup 4-Door

Engines covered

  • 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
  • 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
  • 6.0L 5967CC 364Cu. 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

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Payment methods

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  • Visa

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Vehicle Safety Data

2008 Chevrolet Avalanche Recalls & Complaints

NHTSA #08V44100028/08/2008Component: ELECTRICAL SYSTEM

GM IS RECALLING 857,735 MY 2006-2008 BUICK LUCERNE; CADILLAC DTS; HUMMER H2; MY 2007-2008 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT; CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, T

Consequence

THIS MAY CAUSE OTHER ELECTRICAL FEATURES TO MALFUNCTION, CREATE AN ODOR, OR CAUSE SMOKE IN

Remedy

DEALERS WILL INSTALL A WIRE HARNESS WITH AN IN-LINE FUSE FREE OF CHARGE. THE RECALL BEGAN

NHTSA #21V05200005/02/2021Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

General Motors, LLC (GM) is recalling certain 2009 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Silverado 2500, Silverado 3500, Suburban, Tah

Consequence

An inflator explosion may result in sharp metal fragments striking the driver or other occ

Remedy

GM will notify owners, and dealers will replace the front passenger air bag inflator with

NHTSA #21V05000005/02/2021Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

General Motors, LLC (GM) is recalling certain 2007-2011 Cadillac Escalade, Escalade ESV, Escalade EXT, Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon,

Consequence

An inflator explosion may result in sharp metal fragments striking the driver or other occ

Remedy

GM will notify owners, and dealers will replace the front passenger air bag inflator with

NHTSA #10V24000004/06/2010Component: ELECTRICAL SYSTEM

GM IS RECALLING CERTAIN MODEL YEAR 2006-2009 BUICK, LUCERNE; CADILLAC DTS; HUMMER H2; MODEL YEAR 2008-2009 BUICK ENCLAVE; CADILLAC CTS; MODEL YEAR 2007-2009 CADILLAC ESCALADE, ESCA

Consequence

IT IS POSSIBLE FOR THE HEATED WASHER MODULE TO IGNITE AND A FIRE MAY OCCUR.

Remedy

DEALERS WILL PERMANENTLY DISABLE AND REMOVE THE HEATED WASHER FLUID MODULE. AN UPDATED PA

TSB #11023091

New Vehicle Monitoring Programs Section in IVH

TSB #11021792

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble

TSB #11020816

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

TSB #11019074

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11019073

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11019072

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

TSB #11017868

This service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.

TSB #11014455

This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the

Showing the 8 most recent of 434 technical service bulletins on file with NHTSA.

20110319Component: AIR BAGSCrash reported3 injured

COMING HOME FROM LACROSSE PRACTICE WITH MY TWO SONS, WE HIT A 900 LB COW RUNNING ACROSS THE MAIN ROAD AT NIGHT. CRUSHED FRONT END ALL THE WAY TO WINDSHIELD, VERY VIOLENT BLOW. W

20140324Component: AIR BAGSCrash reported2 injured

I WAS COMPLETELY STOPPED BEHIND ANOTHER VEHICLE, WHEN A TOYOTA TACOMA PICKUP HIT THE REAR OF THE AVALANCHE, KNOCKING IT INTO AN F250 CREW CAB 4 WHEEL DRIVE PICKUP, THE FRONT END WA

20130620Component: AIR BAGSCrash reported2 injured

TL* THE CONTACT OWNS A 2008 CHEVROLET AVALANCHE. THE CONTACT STATED THAT WHILE ACCELERATING FROM A COMPLETE STOP, THE DRIVER AND PASSENGER AIR BAGS FAILED TO DEPLOY AFTER ANOTHER V

20121025Component: AIR BAGSCrash reported1 injured

TL* THE CONTACT OWNS A 2008 CHEVROLET AVALANCHE. THE CONTACT STATE THAT WHILE DRIVING 50 MPH, A DRUNK DRIVER CRASHED INTO HER VEHICLE AND NONE OF THE AIR BAGS DEPLOYED. THE PASSENG

Showing the 4 most serious of 323 complaints filed with NHTSA.

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