2003 Cadillac Escalade EXT Service and Repair Manual

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Fits the 2003 Escalade EXT — Base Crew Cab Pickup 4-Door ·
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2003 Cadillac Escalade EXT 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.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • Base Crew Cab Pickup 4-Door

Engines covered

  • 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
NHTSA #04V12900017/03/2004Component: STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS

ON CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE GALVANIZED STEEL TAILGATE SUPPORT CABLES THAT RETAIN THE TAILGATE IN THE FULL OPEN (HORIZONTAL) POSITION MAY CORRODE, WEAKEN, AND EVENTUALLY FR

Consequence

ANYONE SITTING OR STANDING ON THE HORIZONTAL SURFACE OF THE TAILGATE WHEN BOTH CABLES FRACTURED COUL

Remedy

DEALERS WILL REPLACE THE CABLES. INTERIM OWNER NOTIFICATION BEGAN ON APRIL 7, 20004. THE RECALL BE

NHTSA #04V04500004/02/2004Component: SERVICE BRAKES, HYDRAULIC

CERTAIN SPORT UTILITY VEHICLES, PICKUP TRUCKS, AND PASSENGER VANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, ?PASSENGER CAR BRAKE SYSTEMS.? SOME OF THESE V

Consequence

CONSEQUENTLY, THE VALVE O-RING SEAL MAY FRACTURE. STEERING EFFORTS MAY BE SLIGHTLY INCREASED WHILE

Remedy

DEALERS ARE TO REPLACE THE HYDRO-BOOST RELIEF VALVE. THE RECALL BEGAN ON JUNE 18, 2004. OWNERS S

TSB #10096026

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT FINDING NEEDLE BEARINGS DURING AN OIL CHANGE. TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. ONLY REPLACE THE ROLLER ROCKER THAT IS

TSB #10054261

CHEVROLET/GMC/CADILLAC: ANYTIME HYDRAULIC BRAKE PIPES ASSEMBLY NEED REPLACING, PRE-FORMED AND PRE-FLARED BRAKE PIPES ARE AVAILABLE, EXCEPT REAR AXLE CROSSOVER PIPE. MODEL 1999-2007 SILVERADO, SIERRA, 2000-2006 ESCALADE MODELS, AVALANCHE, SU

TSB #10052488

GM: IF THE SERVICE SUSPENSION SYSTEM IS DISPLAYED ON THE DIC, THE TRIM HEIGHT MAY BE INCORRECT, LOOSE COMPRESSOR INLET HOSE, OR THE COMPRESSOR SELF TEST MAY BE INOPERATIVE. ALSO INCLUDED SUBURBAN LD MY 2001-2013, YUKON DENALI XL MY 2013, YU

TSB #10044941

GENERAL MOTORS: DIAGNOSING POWER STEERING CONCERNS. IN RARE CASES, CUSTOMERS MAY COMMENT ON A LACK OF STEERING ASSIST WHEN STOPPED OR DURING PARKING LOT TYPE OF MANEUVERS. *JS UPDATED 09/02/14*LJ

TSB #10043536

BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE: IF BLOWER MOTOR IS SET TO ANY SPEED POSITION AND WHEN KEY IS OFF, IT BECOMES INOPERATIVE AND MAY STILL BE INOPERATIVE AFTER KEY IS TURNED ON. *PE UPDATED ON 5/1/12. *JS

TSB #10042986

GENERAL MOTORS: INFORMATION PROVIDED BY BULLETIN FOR ALL 2012 AND PRIOR GENERAL MOTOR TRUCKS AND PASSENGER VEHICLES REGARDING THE ADJUSTABLE COMFORT AND CUSTOM UPHOLSTERY OF THE DRIVER AND THE PASSENGER HEAD RESTRAINT. *PE

TSB #10037570

GM: ON SOME TRUCK MODELS THERE IS SOME FRAME CORROSION. *RM UPDATED ON 5/2/2012. *KB

TSB #10036545

BUICK/CADILLAC/CHEVROLET/GMC/OLDSMOBILE AND HUMMER: INFORMATION ON PITMAN ARM SHAFT SEAL SERVICE KIT. DO NOT REPLACE ENTIRE STEERING GEAR FOR PITMAN SEAL LEAK. TECHNICIANS HAVE BEEN REPLACING ENTIRE STEERING GEARS DUE TO NOT BEING ABLE TO S

Showing the 8 most recent of 53 technical service bulletins on file with NHTSA.

20050322Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDERCrash reported2 injured

WAS EXITING THE HUTCHINSON RIVER PKWY, SOUTH IN PELHAM, NY. ATTEMPTED TO APPLY THE BRAKES AND THE PEDAL WENT STRAIGHT TO THE FLOOR! I WAS UNABLE TO STOP, HIT ANOTHER CAR IN THE REAR AND HAD TO STEER

20050322Component: AIR BAGS:FRONTALCrash reported2 injured

WAS EXITING THE HUTCHINSON RIVER PKWY, SOUTH IN PELHAM, NY. ATTEMPTED TO APPLY THE BRAKES AND THE PEDAL WENT STRAIGHT TO THE FLOOR! I WAS UNABLE TO STOP, HIT ANOTHER CAR IN THE REAR AND HAD TO STEER

20070214Component: ELECTRICAL SYSTEMFire reported

12/24/06 I HAD A CAR FIRE AT MY HOUSE, GENERAL MOTORS HAS BEEN JERKING ME AROUND FOR OVER A MONTH NOW REGARDING THERE LIABILITY FOR THE FIRE. 2/13/07 THEY ACCEPTED LIABILITY OF THE FIRE OVER THE PHONE

20070130Component: ELECTRICAL SYSTEMFire reported

MY 2003 CADILLAC ESCALADE EXT. WAS PARKED AT 10:30 DECEMBER 23. 2006 IN MY DRIVEWAY, ABOUT 9-9:15 ON DECEMBER 24, 2006 THE TRUCK IGNITED ITSELF ON FIRE. THE TRUCK IS SEVERELY BURNED AS WELL AS MY WIFE

20070920Component: STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS1 injured

TL*THE CONTACT OWNS A 2003 CADILLAC ESCALADE EXT. THE CONTACT STATED THAT WHILE LOADING HIS TAILGATE WITH 12 BAGS OF 40 POUND WOOD CHIPS, HE HEARD A POPPING SOUND . THE CONTACT THEN LOADED A 13 POUN

Showing the 5 most serious of 24 complaints filed with NHTSA.

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