» Bad motor mount can cause MAP sensor vacuum hose to weaken or pull off
Report: Bad motor mount can cause MAP sensor vacuum hose to weaken or pull off
Ford Taurus Problem
Model Years Affected: 1990, 1991
Exhaust & Emissions Affected: 2.5L 4 Cylinder
Bad motor mounts can cause the motor to move excessively, which pulls on the MAP sensor vacumn hose every time you step on the gas pedal. This either weakens the hose so it collapses (causing low vacuum flow) or pulls the vacuum hose that connects the intake manifold to the MAP sensor completely off of the sensor. When the hose is disconnected from the MAP sensor, a full rich condition will result.
Bad motor mounts can damage the engine coolant temperature sensor wiring, causing intermittent full rich conditions.
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