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Newest reported 1995 Mercury Mystique problems


Verified for the Mercury Mystique

The Check Engine Light can illuminate with codes due to the lack of EGR (exhaust gas recirculation) flow caused. This is commonly a result of a clogged passage in the intake manifold. To correct this problem, the EGR valve has to be removed and the passage cleaned thoroughly. Partial restriction of this passage can cause smog test failures for the NOx emissions without causing a drivability symptom.

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Reported by jack4243 and 2 others for the Mercury Mystique

wiring harness insulation has deteriated

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