Car Problem Reports

Mercury Montego Wrench Light, Service Engine Soon Light, Possible Poor Throttle Response

Mercury Montego Problem
22 Reports
Me Too

Model Years Affected: 2005, 2006, 2007

Average Mileage: 124,821 mi (50,000 mi - 210,315 mi)


A defective electronic throttle body (ETB) can cause the Check Engine Light to illuminate and could have limited to no throttle response. Our technicians tall us that replacing the electronic throttle body will commonly correct this concern.

  • Visitor, , 86,000 mi

    Wrench light on dash came on. Down with power and up with rpms. Limped it to work and after turning engine off and restarting no further problems until today, then 2x in one day!!! Worried this could cost me!!! A lot!!!

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  • Visitor, , 100,000 mi

    Freequently when shifting from neutral to reverse, or sometimes from neutral to drive, the car surges. It does it more freequently when the engine is hot from driving around (like running errands and backing in and out of parking spaces) Once, we got the wrench light, but it went off after re-starting the car. Once the car went into "limp home mode" but again, after turning it off, letting it cool, and starting it again, it was back to normal. Another time the check engine light came on, so we took it in to have the codes read. The mechanic cleaned the mass air flow sensor as it looked "extra dirty" A couple days later, the problem came back. Now, about a month after the mass air flow sensor was cleaned, we did a lot of stop and go driving, backing in and out of a couple driveways and parking lots, and the check engine light came back on. By the time we could get it to the mechanic, the check engine light was no longer on and of course the mechanic could not get it to duplicate the problem.

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  • Visitor, , 66,000 mi

    While driving on express ways the car almost shuts down like as if its gonna stop,wrench light and engine light pops up. Cant go over 50 when this happens. Havn't got it fixed. to expensive. think i should get another car.

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  • Visitor, , 50,000 mi

    Electrical Problems out the ying-yang. Car still runs well but kind of annoying and embarrassing with guests in the car.

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  • Visitor, , 89,000 mi

    check eng and trans light and wrench lights

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  • Visitor, , 150,000 mi

    Had to replace the thotter control at a cost of $700.00

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  • Visitor, , 145,000 mi

    car dies and check engine light comes on. says throttle body.

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  • Visitor, , 167,000 mi

    Engine surges especially after it gets hot. Read several reports, that indicate it's a fairly serious problem, light break presser will not stop the car. No accidents yet but concerned about this problem that has persisted for some link of time.

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  • replace throttle body

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  • Visitor, , 87,000 mi

    So for a few days now my car has started jumping forward when stopping. Now this am my car went into limp mode. I am not able to go above 30 miles or so and when you push the pedal, no power or fuel being able to get thru. Wrench light came on, went to auto zone..code 701... Tranny

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