Mercury Mountaineer owners have reported 2 problems related to engine knocking noise (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercury Mountaineer based on all problems reported for the Mountaineer.
Driving at normal speed of approximately 40 mph on a city street, the spark plug and coil shot out from the #2 cylinder. A large percussion banging sound emitted from under the hood which was the detectable evidence something had just gone desperately wrong with the engine.
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all problems of the 2002 Mercury Mountaineer
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I purchased a 2004 Mercury Mountaineer first the rear liftgate plastic broke and theres a crack by the emblem on some ocasions when put in reverse it makes a loud bang noise or when starting to accelerate but the biggest problem is that on the highway up to 50mph and over there seems to be a rattle under the engine and it gets louder when mph is higher im not sure what it is but im really worried that it maybe a transmission problem and if this problem isnt recalled me and my family plus others are in really big danger its a family car so im starting to worry for my family and there safety these vehicles need to go on inspection and soon so these dosent lead to any accidents.
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all problems of the 2004 Mercury Mountaineer
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