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.

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HOMESERVICE MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 351 (ACCELERATION CONTROL SYSTEM - (EXCEPT HYBRID))DIAGNOSIS AND TESTINGACCELERATION CONTROLSYMPTOM CHART

2010 Mercury Mariner Hybrid, AWD

Symptom Chart

2010 Mercury Mariner Hybrid, AWDSECTION Symptom Chart

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
Accelerator pedal is hard to push down or has a rough or sticky feel	Damaged accelerator cable.	NOTE: Do not lubricate the accelerator cable. INSTALL a new accelerator cable.
	Accelerator cable.	CHECK the accelerator cable for correct installation.
	Worn or damaged throttle body.	INSTALL a new throttle body. REFER to FUEL CHARGING & CONTROLS - 2.3L or FUEL CHARGING & CONTROLS - 3.0L (4V) .
	Damaged accelerator pedal and shaft.	INSTALL a new accelerator pedal and shaft.
Accelerator pedal shaft lever sticks (does not return freely)	Damaged accelerator cable.	INSTALL a new accelerator cable.
	Accelerator cable.	CHECK the accelerator cable for correct installation.
	Weak or broken accelerator shaft spring.	INSTALL a new accelerator shaft spring.
	Worn or damaged throttle body.	INSTALL a new throttle body. REFER to FUEL CHARGING & CONTROLS - 2.3L or FUEL CHARGING & CONTROLS - 3.0L (4V) .
High engine idle speed	Damaged accelerator cable.	INSTALL a new accelerator cable.
	Accelerator cable incorrectly installed.	CHECK the accelerator cable for correct installation.
	Electrical/mechanical/vacuum.	REFER to the INTRODUCTION - GASOLINE article.

RENDER: 1.0x

NO RELATED

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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.