Problem Reports » EGR Orifice in Intake Manifold May Plug With Sludge and Cause Misfire

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Mercury Monterey

 

Report: EGR Orifice in Intake Manifold May Plug With Sludge and Cause Misfire

Mercury Monterey Problem
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Model Years Affected: 2004, 2005, 2006, 2007

Average Mileage: 89,333 mi (72,000 mi - 101,000 mi)

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On higher mileage vehicles, one or more EGR orifice in the intake manifold may plug with sludge. This can cause the engine to misfire when first accelerating because too much exhaust gas is directed into the cylinders where the orifice is not plugged. Cleaning the clogged passages should correct this concern.

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