Question about 1998 Mercury Mountaineer
You have a fault somewhere in the electronic throttle control system. Engine speed on this model is controlled by the computer; there is no mechanical connection between the gas pedal and the throttle on the engine. Diagnosing faults with this system does require use of the factory scan equipment or equivalent. I am afraid that this is not something you can diagnose or repair at home. You will need to have the vehicle taken to the dealer or to whatever repair shop you normally use to have the cause of the problem identified.
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Posted on Sep 24, 2009
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Posted on Jan 02, 2017
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