Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 258 (FUEL SYSTEM & ENGINE CONTROL SYSTEM)DESCRIPTION AND OPERATIONFUEL CHARGING AND CONTROLS
2010 Mercury Mariner Hybrid, AWD
Fuel Charging and Controls
2010 Mercury Mariner Hybrid, AWDSECTION Fuel Charging and Controls
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
The fuel rail:
- delivers fuel to the fuel injector.
- receives fuel from the fuel supply tube.
CAUTION:
Do not hold the throttle plate open with any object that could scratch the bore or plate while servicing or cleaning the throttle body. Refer to THROTTLE BODY .
The throttle body:
- controls air supply to the upper intake manifold by positioning the throttle plate.
- is coolant heated.
- is not adjustable.
- must be removed from the vehicle to be cleaned.
The fuel injector:
- is electrically operated by the powertrain control module (PCM).
- has an internal solenoid that opens a needle valve to inject fuel into the lower intake manifold.
- atomizes the fuel as the fuel is delivered.
- is deposit resistant.
The fuel injection pressure and temperature sensor:
- measures the pressure and temperature of the fuel in the fuel supply manifold and sends these signals to the PCM.
- uses intake manifold vacuum as a pressure reference.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.