Symptom Chart

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 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. REFER to Accelerator Cable - 2.3L or Accelerator Cable - 3.0L (4V) .
	Accelerator cable	CHECK the accelerator cable for correct installation.
	Worn or damaged throttle body	INSTALL a new throttle body. REFER to FUEL CHARGING AND CONTROLS - 2.3L article or FUEL CHARGING AND CONTROLS - 3.0L (4V) article.
	Damaged accelerator pedal and shaft	INSTALL a new accelerator pedal and shaft. REFER to Accelerator Pedal and Shaft .
Accelerator pedal shaft lever sticks (does not return freely)	Damaged accelerator cable	INSTALL a new accelerator cable. REFER to Accelerator Cable - 2.3L or Accelerator Cable - 3.0L (4V) .
	Accelerator cable	CHECK the accelerator cable for correct installation.
	Weak or broken throttle body shaft spring	INSTALL a new throttle body. REFER to FUEL CHARGING AND CONTROLS - 2.3L article or FUEL CHARGING AND CONTROLS - 3.0L (4V) article.
	Worn or damaged throttle body	INSTALL a new throttle body. REFER to FUEL CHARGING AND CONTROLS - 2.3L article or FUEL CHARGING AND CONTROLS - 3.0L (4V) article.
High engine idle speed	Damaged accelerator cable	INSTALL a new accelerator cable. REFER to Accelerator Cable - 2.3L or Accelerator Cable - 3.0L (4V) .
	Accelerator cable incorrectly installed	CHECK the accelerator cable for correct installation.
	Electrical/mechanical/ vacuum	REFER to the Introduction - Gasoline Engines article.
	Idle air control (IAC) valve	INSTALL a new IAC. REFER to ELECTRONIC ENGINE CONTROLS - 2.3L article or ELECTRONIC ENGINE CONTROLS - 3.0L (4V) article.