2004 Lincoln LS 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 Sedan 4-Door
- Convenience Sedan 4-Door
- Sport Sedan 4-Door
- Plus Sedan 4-Door
- Sport Premium Sedan 4-Door
Engines covered
- 3.9L 242Cu. In. V8 GAS DOHC Naturally Aspirated
- 3.0L 2968CC 181Cu. In. V6 GAS DOHC 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
This article supersedes TSB 19-2026 to update the vehicle model years affected. Some 2000 and newer Ford/Lincoln/Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint wi
The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic throttle bodies (ETBs). The ETC_ACT and ETC_DSD PIDs should not used to diagnose possible ETB concerns. The IDS has a limited refresh rate
FORD/LINCOLN/MERCURY: MAY HAVE SLUDGE BUILDUP IN THROTTLE BODY LEADING TO LESS AIRFLOW OR ENGINE IDLING RPM FLUCTUATION AND HARD STARTS OR BATTERY DISCONNECT OR DEAD BATTERY AFTER KEEP ALIVE MEMORY (KAM) CLEAR. MODELS 2003-05 THUNDERBIRD, 0
FORD/LINCOLN MERCURY: CERTAIN 2003-2005 MODEL YEAR LINCOLN LS AND FORD THUNDERBIRD VEHICLES EQUIPPED WITH 3.9L ENGINE WITH EXTENDED WARRANTY COVERAGE ON IGNITION COIL ASSEMBLIES AND ON 2003 MY VEHICLES ONLY , ENGINE VALVE COVER GASKETS. *PE
LINCOLN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN 2003-2005 LINCOLN LS VEHICLES EQUIPPED WITH DURATEC 3.0L 4V ENGINE. PCV HOSE ASSEMBLY REPLACEMENT. CSC WAS RECEIVED. *PE
PARKING AID SYSTEM IS INOPERATIVE - DTC C1983. *KB
PARKING AID SYSTEM INOPERATIVE - DTC C1983. *KB
PARKING AID SYSTEM INOPERATIVE. *AK
Showing the 8 most recent of 66 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNS A 2004 LINCOLN LS. THE CONTACT STATED THAT WHILE DRIVING IN INCLEMENT WEATHER, SHE LOST CONTROL OF THE VEHICLE AND DROVE OFF THE ROAD, CRASHING INTO A TREE. THE AIR BAGS DID NOT D
TL*THE CONTACT OWNS A 2004 LINCOLN LS. IN MAY OF 2009, THE CONTACT'S VEHICLE SWERVED OFF THE ROAD AND STRUCK A CULVERT. THE ENTIRE FRONT END WAS DAMAGED; HOWEVER, THE AIR BAGS FAILED TO DEPLOY. A PO
SLOWED AND TURNED INTO PARKING SPACE NOTED VEHICLE WAS NOT STOPPING PRESSED FIRMER ON BRAKES DID NOT STOP HIT CEMENT POST AT CHATHAM COUNTY TAG DEPARTMENT WITH AN OFFICER WATCHING $10,000 DAMAGE LEFT
DT*: THE CONTACT STATED WHILE TRAVELING 60 MPH, THE VEHICLE STRUCK A TIRE LYING IN THE ROAD. THE DAMAGE WAS IN THE FRONT END BETWEEN THE CENTER AND PASSENGER SIDE BELOW THE HEADLIGHT. THE AIRBAGS D
DT: CONTACT STATES WHILE PARKING THE VEHICLE IT ACCELERATED AND CRASHED INTO A BUILDING. THE VEHICLE WAS TOWED TO A LOCAL SERVICE DEALER, THEY WERE GOING TO REPAIR THE VEHICLE. *AK THE CONSUMERS
Showing the 5 most serious of 140 complaints filed with NHTSA.
