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Model Years Affected: 1998, 1999, 2000, 2001
Engines Affected: 4.0L V6, 4.0L V6 SOHC
The Check Engine Light will illuminate and the engine will idle roughly when cold. There are updated upper intake manifold gaskets to resolve the problem.
Common Problems > Mercury Mountaineer
Q&A > Mercury > 1999 Mercury Mountaineer
Q&A > Mercury > 1998 Mercury Mountaineer