Http://www.autoblog.com/2013/02/25/the federal safety agency-investigating-725k-ford-mercury-vehicles-for-stalling-iss/ - read comments on this site. Exactly what our mariner is doing. 60 to zero in 2 seconds. Yellow wrench light comes on, vehicle no longer accelerates, pullover, turn off, restart. Has happened 3 times.
2011 Mercury Mariner acceleration complaints
Page 2 of 2: complaints 11 to 15 of 15, newest first, as owners wrote them.
Defective throttle body.
Vehicle traveling at 70 MPH on interstate engine quit and loss of steering and control. Pulled over re started happened again. And engine light went on. Re started drove to dealer later and discovered after $100.00 diagnostic that the throttle body was not working properly . Happened when mileage was between 38-39000. They wanted me to pay over $590.00 to replace their defective part at ford dealership they refused to put it under any warranty or recall . I did not have it fixed. It is a danger to allow this matter not to be recalled as it has happened thousands of times in many ford vehicles.
Tl* the contact owns a 2011 mercury mariner. The contact stated that while driving approximately 30 MPH, the rpms increased as the vehicle independently decelerated. The contact shut the engine off and restarted the vehicle. The failure continued intermittently. The vehicle was taken to the dealer for diagnosis. The technician stated the throttle body would have to be replaced. The vehicle was not repaired. The approximate failure mileage was 37,755.
Tl* the contact owns a 2011 mercury mariner. The contact stated that while driving at various speeds, the vehicle would stall without warning. The vehicle would sporadically hesitate when accelerating with the immediate illumination of the transmission warning light. The vehicle was later towed to the dealer where the contact was advised that fuel emission and the throttle body would require reprogramming. The vehicle was repairer however, the failure recurred. The manufacturer was contacted and offered no assistance. The failure mileage was approximately 18,000. The current mileage was approximately 40,000.
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