The National Highway Traffic Safety Administration is looking into steering issues in about 500,000 older Ford sedans.
The government agency is looking into the 2004 through 2007 Ford Crown Victoria, Mercury Grand Marquis and Marauder after receiving five complaints, one of which includes an injury. The problem is a heat shield which can dislodge and obstruct the steering shaft, causing the steering to stiffen or lock up.
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In one case, a 2004 Crown Victoria rolled over after the driver said that the steering locked up. In other complaints, drivers claim that the steering becomes very stiff and hard to operate.
Ford has already recalled many of these vehicles that operate in States that use road salt over seizing of the lower intermediate shaft.
Ford says it will cooperate with the investigation. If a systemic problem is found, another recall will be issued.
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