2010 Mercury Mountaineer Service and Repair Manual
The 2010 Mercury Mountaineer 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
- Base Sport Utility 4-Door
- Premier Sport Utility 4-Door
Engines covered
- 4.0L 245Cu. In. V6 GAS 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
FORD IS RECALLING CERTAIN MODEL YEAR 2010 FUSION, EXPLORER, EXPLORER SPORT TRAC, AND MERCURY MILAN AND MOUNTAINEER VEHICLES MANUFACTURED BETWEEN DECEMBER 15, 2009 THROUGH FEBRUARY 3, 2010 EQUIPPED WIT
IN THE EVENT OF A CRASH, THE SEATBACK AND HEAD RESTRAINT MAY MOVE REARWARD, INCREASING THE RISK OF I
DEALERS WILL REPLACE THE MANUAL RECLINERS FOR BOTH POWER AND MANUAL SEATS FREE OF CHARGE. THE SAFET
All accessory stick-on keyless entry keypads come with a wallet card containing the master code. If the accessory keypad was factory installed, this card will be placed in the glove box and should be handed to the vehicles owner during ini
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
2009-2017 VEHICLES EQUIPPED WITH A 6R80, 6R100, 6R140 AUTOMATIC TRANSMISSION HAVE AN UPDATED MAIN CONTROL VALVE BODY OVERHAUL PROCEDURE. REFER TO WORKSHOP MANUAL (WSM), SECTION 307-01 FOR MAIN CONTROL VALVE BODY (7A100) OVERHAUL PROCEDURES.
REPLACING THE ORIGINAL EQUIPMENT SYNC/NAVIGATION SYSTEM WITH EITHER AN AFTERMARKET SYNC/NAVIGATION KIT OR MODIFYING ORIGINAL SYNC/NAVIGATION PARTS TO PROVIDE ADDITIONAL FEATURES IS NOT RECOMMENDED NOR SUPPORTED ON ANY FORD, MERCURY OR LINCO
SOME 2008-2017 FORD/MERCURY/LINCOLN VEHICLES EQUIPPED WITH SYNC MAY GENERATE A VHR THAT IDENTIFIES A CONCERN WITH THE BRAKES AND SUSPENSION CATEGORY INDICATING SERVICE IS REQUIRED DUE TO A BRAKE SYSTEM WARNING LAMP BEING ILLUMINATED. IF THE
SOME 2008-2017 FORD/MERCURY/LINCOLN VEHICLES EQUIPPED WITH SYNC MAY GENERATE A VHR THAT IDENTIFIES A CONCERN WITH THE BRAKES AND SUSPENSION CATEGORY INDICATING SERVICE IS REQUIRED DUE TO A BRAKE SYSTEM WARNING LAMP BEING ILLUMINATED. IF THE
FORD: NO SERVICE ACTION IS RECOMMENDED FOR THIS CONDITION. PLEASE USE AT YOUR DISCRETION. VARIOUS 2010-2015 VEHICLES MAY EXPERIENCE A TURBULENCE NOISE, SIMILAR TO AN HELICOPTER NOISE, AT HIGHWAY SPEEDS WHEN THE REAR DOOR WINDOW(S) OR SUNROO
LINCOLN/MERCURY/FORD: THERE IS FLUID LEAKING AROUND THE TRANSMISSION BULKHEAD CONNECTOR SLEEVE, FROM THE TRANSMISSION. MODEL 2009-10 EXPEDITION, EXPLORER, EXPLORER SPORT TRAC, F-150, NAVIGATOR, MOUNTAINEER. *PE
Showing the 8 most recent of 10 technical service bulletins on file with NHTSA.
The contact owns a 2010 Mercury Mountaineer. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The contact was i
TL* THE CONTACT OWNS A 2010 MERCURY MOUNTAINEER. WHILE THE CONTACT'S WIFE WAS DRIVING 70 MPH, SHE DEPRESSED THE BRAKE PEDAL AND THE FRONT DRIVER'S SEAT STARTED TO SLIDE BACKWARDS AND THE INTERIOR LIGH
TL* THE CONTACT OWNS A 2010 MERCURY MOUNTAINEER. WHILE THE CONTACT'S WIFE WAS DRIVING 70 MPH, SHE DEPRESSED THE BRAKE PEDAL AND THE FRONT DRIVER'S SEAT STARTED TO SLIDE BACKWARDS AND THE INTERIOR LIGH
TL* THE CONTACT OWNS A 2010 MERCURY MOUNTAINEER. WHILE THE CONTACT'S WIFE WAS DRIVING 70 MPH, SHE DEPRESSED THE BRAKE PEDAL AND THE FRONT DRIVER'S SEAT STARTED TO SLIDE BACKWARDS AND THE INTERIOR LIGH
DOORS LOCKING MECHANISM MALFUNCTIONING AND CODING NUMBERS NOT FUNCTIONING. BEING LOCKED OUT WHEN USING CODE #S. CHAIN CRANKIN HARSHLY BUT NOT UNLOCKING DOORS. WHEN USING KEY INSTEAD OF CODE KEY DOES N
Showing the 5 most serious of 24 complaints filed with NHTSA.
