Lincoln Aviator owners have reported 3 problems related to engine (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 Lincoln Aviator based on all problems reported for the Aviator.
2004 Lincoln Aviator 74,000 miles. While attempting to merge onto interstate 95 s the vehicle shuddered and lost power unable to accelerate. Final determination by a mechanic determined the #8 cylinder was not holding pressure because the valve was not sealing correctly. The 4. 6l v8 Ford engine's valve's are powder coated and this caused the value to stick and overtime warped the valve's components due to excessive heat. This is an engine design defect and the engine and will require a complete valve job to replace the head, head gasket and faulty valve stem. Ford has issued a technical bulletin on the subject but will not perform a voluntary recall. This is a serious safety issue and could cause serious injury or death if the vehicle losses power while merging with or evading oncoming traffic.
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The contact owns a 2003 Lincoln Aviator. When accelerating to 40 mph from a complete stop, the vehicle's transmission slips and the engine's rpm increases to 5,000 rpm for approximately five to six seconds. The transmission then shifts itself in gear and drives forward. When the contact attempts to accelerate and change gears, the transmission jerks and slips, preventing the vehicle from moving. The engine revs up and then gets weaker. The contact stated that the vehicle feels as if it is in neutral for approximately six seconds. The vehicle was taken to the dealer where it was kept overnight. The dealer was unable to duplicate the failure. The current mileage is 62,500 and failure mileage was 45,000.
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2003 Lincoln Aviator stops suddenly without warning.