2006 Mercury Grand Marquis Service and Repair Manual

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Factory-Grade Data

The 2006 Mercury Grand Marquis Service and Repair Manual is a practical, workshop-ready reference for maintenance, diagnostics, and repairs. Use it to troubleshoot symptoms, follow step-by-step procedures, verify specifications, and confirm wiring and connector locations before replacing parts.

Ideal for technicians and DIY owners, it supports everything from routine service to deeper mechanical and electrical work—including drivability, no-start, warning lights, overheating, brake and suspension issues, HVAC faults, and circuit testing.

Trims covered

  • GS Sedan 4-Door
  • LS Sedan 4-Door

Engines covered

  • 4.6L 281Cu. In. V8 FLEX SOHC Naturally Aspirated
  • 4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated

What’s inside

  • 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

Why this manual matters

  • Faster diagnostics with system-based troubleshooting and wiring diagrams
  • Clear procedures and reference sections to reduce guesswork and rework
  • Helpful for maintenance planning and verifying parts/specs before repairs

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Vehicle Safety Data

2006 Mercury Grand Marquis Recalls & Complaints

NHTSA #13V38500029/08/2013Component: STEERING

Ford is recalling certain model year 2005-2011 Ford Crown Victoria (including Crown Victoria Police Interceptors), Mercury Grand Marquis, and Lincoln Town Car vehicles. The affected vehicles are curre

Consequence

If the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk o

Remedy

Ford will notify owners and dealers will replace the lower intermediate shaft, free of charge. The

TSB #10205037

Inpected or repaired under 13R01 - Requests for recall service action under 13S08

TSB #10183773

For 2005-2012 Crown Victoria, 2005-2011 Grand Marquis and Town Car vehicles, Regional Program 13R01 applies to vehicles not registered in corrosion states and not included in Safety Recall 13S08, where operation in high corrosion areas for

TSB #10166447

This SKU is a Radiator Fan. The customer communication requested return of unsold inventory to inspect the electrical connections. An electrical connection issue may lead to the fan not working potentially throwing a check engine light for

TSB #10156863

Some 2000 and newer Ford, Lincoln and Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. Panel replacement is recommended. Fo

TSB #10155551

Some 2000 and newer Ford, Lincoln and Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. Panel replacement is recommended. Fo

TSB #10109070

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

TSB #10054924

FORD: THE LOWER INTERMEDIATE STEERING SHAFT, HAS CORROSION OF SWING LINK JOINTS, COMBINED WITH COLLAPSED UPPER INTERMEDIATE STEERING SHAFT, RESULTING IN STEERING COLUMN SEPARATION AND LOSS OF STEERING CONTROL. MODEL 2005-2011 CROWN VICTORIA

TSB #10045340

FORD/LINCOLN/MERCURY: IF BATTERY WAS DISCONNECTED OR DEAD, VEHICLES/TRUCKS MAY EXPERIENCE HARD STARTS AND ENGINE IDLE RPM FLUCTUATION AND EXHIBIT DIAGNOSTIC TROUBLE CODES (DTCS) P0505, P0506, P2111 AND P2112. *PE

Showing the 8 most recent of 20 technical service bulletins on file with NHTSA.

20131107Component: VEHICLE SPEED CONTROLCrash reported3 injured

STOPPED AT RAILROAD CROSSING. TRAIN MOVING. 1 CAR AHEAD OF ME AT RAILROAD. STOP. I WAS COMPLETELY STOPPED. AFTER BEING STOPPED FOR ABOUT A MINUTE MY CAR SUDDENLY ACCELERATE AND SLAMMED INTO CAR IN FR

20140103Component: TIRESCrash reported2 injured

TL* THE CONTACT OWNS A 2006 MERCURY GRAND MARQUIS EQUIPPED WITH A MICHELIN P225/60PR16 DEFENDER TIRE. WHILE DRIVING 70 MPH, THE REAR PASSENGER TIRE BLEW. THE CONTACT STATED THAT THE VEHICLE CRASHED IN

20160114Component: AIR BAGSCrash reported1 injured

MY 17 YEAR OLD SLID OFF ROAD IN SNOW STORM, HIT TREE HEAD ON, CENTER OF BUMPER CONTACT, BUMPER REINFORCEMENT BAR DRIVEN INTO RADIATOR, BOTH FRAME RAILS BENT, YET NO AIR BAG DEPLOYMENT TOOK PLACE.

20150417Component: VEHICLE SPEED CONTROLCrash reported1 injured

TL* THE CONTACT OWNED A 2006 MERCURY GRAND MARQUIS. WHILE DRIVING AT AN UNKNOWN SPEED WITH THE CRUISE CONTROL ACTIVATED, THE VEHICLE SUDDENLY ACCELERATED. THE REAR BRAKES LOCKED WHEN THE FAILURE OCCUR

20150417Component: SERVICE BRAKESCrash reported1 injured

TL* THE CONTACT OWNED A 2006 MERCURY GRAND MARQUIS. WHILE DRIVING AT AN UNKNOWN SPEED WITH THE CRUISE CONTROL ACTIVATED, THE VEHICLE SUDDENLY ACCELERATED. THE REAR BRAKES LOCKED WHEN THE FAILURE OCCUR

Showing the 5 most serious of 187 complaints filed with NHTSA.

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