Behind the drivers side rear quarter panel in the cargo area
To remove the rear blend actuator on a 2003 Mercury Mountaineer, start by disconnecting the vehicle's battery to avoid electrical issues. Then, remove the necessary trim panels or the center console to access the actuator, typically located behind the passenger side rear panel. Unscrew the bolts securing the actuator and disconnect the electrical connector. Finally, take out the actuator and replace it with a new one, reversing the removal steps.
The computer module in a 2003 Mercury Mountaineer is located behind the rear right panel in the truck space. The rear right seat belt panel must be removed and then the lower panel. The module is located beneath a green plug.
That would be the 4.6 liter engine, which takes six quarts. * of 5W-20 according to the 2003 Mercury Mountaineer Owner Guide
According to the 2003 Mercury Mountaineer Owner Guide : ( DOT 3 brake fluid , meeting Ford specification ESA-M6C25-A )
I get 15.3 in my 2005.
4
( # 24 ) is a blue color 15 amp fuse for the cigarette lighter and OBD II in a 2003 Mercury Mountaineer ( under the instrument panel )
On a 2003 Mercury Mountaineer , 4.6 litre V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
In the front of the engine compartment , on the passenger side , inside the engine air filter housing
The tensioner arm on a 2003 Mercury Mountaineer is located on the front of the engine, near the serpentine belt. It is typically positioned near the alternator and power steering pump, and it is responsible for maintaining the proper tension on the serpentine belt. To access it, you may need to remove or move aside some engine components for better visibility and ease of operation.
My code was located in the compartment with my jack. It is on the side of the white computer box. Hope this helps.
The idle air control valve is located on the side of the intake manifold right next to the throttle body