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.Google+
Car Problem Reports
Mercury Monterey EGR Orifice in Intake Manifold May Plug With Sludge and Cause Misfire
Mercury Monterey Problem
Average Mileage: 114,475 mi (72,000 mi - 195,000 mi)
hesitates when accelerating. problem getting worse.
Visitor, 2004 Mercury Monterey, 115,000 mi
EGR Valve replaced.
Visitor, 2005 Mercury Monterey, 129,000 mi
When I am slowing down or stop it shutters and stalls. When I was driving it bucked and jumped a few times.
EGR is plug how would i go about cleaning it and what with