Question about Mercury Mountaineer
This is usually not the EGR vavlve itself but the sensor which detects the flow. If it is reading low and high at the same time, it is probably going to be the sensor used. The DPFE is usually located on the side of the engines intake manifold(driver's side). Will be about 4" wide(as you are looking at it)by about 2 1/2" high, will have 2 hoses going to it coming from the exhaust manifold. If both of these hoses are hooked up and in good condition, replace the DPFE( this stands for differnetial pressure feedback, exhaust). This is a common failure and most parts houses carry this sensor in stock. Auto zone carries these for around $40. If it is just the hoses, you may have to get the hoses from your local Ford dealer. These are special hoses made to take the extreme heat of the exhaust system.
Posted on Aug 02, 2010
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Posted on Jan 02, 2017
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