2004 Chevrolet Impala Service and Repair Manual

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Factory-Grade Data

2004 Chevrolet Impala 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

  • Police Sedan 4-Door
  • Base Sedan 4-Door
  • SS Sedan 4-Door
  • LS Sedan 4-Door

Engines covered

  • 3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally Aspirated
  • 3.4L 207Cu. In. V6 GAS OHV Naturally Aspirated
  • 3.8L 3800CC 231Cu. In. V6 GAS OHV Supercharged

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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  • Visa

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Vehicle Safety Data

2004 Chevrolet Impala Recalls & Complaints

NHTSA #15V70100026/10/2015Component: ENGINE AND ENGINE COOLING:ENGINE

General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala

Consequence

Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.

Remedy

The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove t

NHTSA #04V28700023/06/2004Component: SERVICE BRAKES, HYDRAULIC

CERTAIN PASSENGER VEHICLES WERE PRODUCED WITH LOWER THAN SPECIFIED TORQUE ON BOTH FRONT BRAKE CALIPER TO STEERING KNUCKLE ATTACHMENT BOLTS. WITH IMPROPER TORQUE, THE CLAMP LOAD AT

Consequence

DEPENDING ON WHETHER ONE OR BOTH BOLTS BACKS OUT OR FRACTURES, THE RESULT CAN BE LOCKING O

Remedy

DEALERS ARE TO TIGHTEN BOTH BOLTS TO THE SPECIFIED TORQUE. OWNER NOTIFICATION BEGAN ON JU

NHTSA #08E06300017/10/2008Component: STEERING

DORMAN PRODUCTS IS RECALLING 3,900 INTERMEDIATE STEERING SHAFTS DORMAN PART NOS. 425-151, 425-152, AND 425-153, (SOLD UNDER DORMAN'S "OE SOLUTIONS" BRAND NAME), BALKAMP #'S 7-3057,

Consequence

IF THE WELD FAILS, LOSS OF STEERING COULD RESULT, POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy

DORMAN WILL NOTIFY OWNERS AND REPLACE THE STEERING SHAFTS FREE OF CHARGE. THE RECALL BEGA

NHTSA #09E00500017/02/2009Component: STEERING

DORMAN IS RECALLING 979 STEERING KNUCKLES, DORMAN P/NOS. 697-902 AND 697-903, SOLD UNDER DORMAN'S "OE SOLUTIONSTM" BRAND NAME, AND NAPA P/NOS. 7-8502 AND 7-8503 WHICH WE

Consequence

A BROKEN STEERING KNUCKLE COULD RESULT IN LOSS OF STEERING CONTROL AND A POSSIBLE CRASH WI

Remedy

DORMAN WILL NOTIFY OWNERS AND REPLACE THE DEFECTIVE STEERING KNUCKLES FREE OF CHARGE AND R

NHTSA #15V20100006/04/2015Component: ENGINE AND ENGINE COOLING:ENGINE

General Motors LLC (GM) notified the agency on April 2, 2015, that they are is recalling certain model year 2004 Buick Regal vehicles manufactured April 9, 2003, to June 1, 2003, 2

Consequence

The leaking engine oil can drip onto the hot surface of the exhaust manifold, increasing t

Remedy

GM will notify owners, and dealers will remove the plastic cover and plastic oil fill tube

TSB #11020816

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

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

TSB #11009156

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and

TSB #11007744

This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi

TSB #11007743

This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi

TSB #11007208

This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed fo

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

Showing the 8 most recent of 495 technical service bulletins on file with NHTSA.

20090724Component: AIR BAGSCrash reported3 injured

I WAS COMING DOWN WESTBOUND ON RACQUET CLUB (CITY OF PALM SPRINGS, CA) THE LIGHT WAS GREEN AS I WAS APPROACHING THE INTERSECTION. I WAS IN THE LANE CLOSEST TO THE CURB/SIDEWALK. I

20141008Component: SERVICE BRAKESCrash reported2 injured

CHEVROLET IMPALA 2004, TRAVELING ON A 4 LANE DIVIDED HIGHWAY, AT 65MPH, USING CRUISE CONTROL, 2 ADULT PASSENGERS USING SEATBELTS, DRIVER SAW TRUCK ENTERING THE INTERSECTION FROM TH

20141008Component: STEERINGCrash reported2 injured

CHEVROLET IMPALA 2004, TRAVELING ON A 4 LANE DIVIDED HIGHWAY, AT 65MPH, USING CRUISE CONTROL, 2 ADULT PASSENGERS USING SEATBELTS, DRIVER SAW TRUCK ENTERING THE INTERSECTION FROM TH

20141008Component: WHEELSCrash reported2 injured

CHEVROLET IMPALA 2004, TRAVELING ON A 4 LANE DIVIDED HIGHWAY, AT 65MPH, USING CRUISE CONTROL, 2 ADULT PASSENGERS USING SEATBELTS, DRIVER SAW TRUCK ENTERING THE INTERSECTION FROM TH

Showing the 4 most serious of 1375 complaints filed with NHTSA.

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