Contour V6-153 2.5L DOHC (1996)
Attachment III - B
Catalyst/Exhaust Manifold Assembly Replacement And Three-Way (Underbody) Catalytic Converter Inspection/Replacement
Affected Vehicles
Certain 1995 and 1996 Contour and Mystique cars, equipped with 2.5L engines and built at the Kansas City Assembly Plant from start of 1995
production through March 10, 1996, and Cuautitlan Assembly Plant from start of production through March 13, 1996.
Service Part Number: F6RZ-9K494-BC Kit "B"
Usage: 1995 Models With Automatic Transmissions
Removal/Inspection
Three-way catalytic converter must be inspected for blockage. If blockage exceeds the inspection limit shown below, the three-way catalytic converter
must be replaced.
1.
Install memory saver, then disconnect battery negative cable.
2.
From engine compartment, perform the following:
^
Disconnect idle air control vacuum hose.
^
Disconnect idle air control electrical connector.
^
Disconnect EGR tube from the EGR valve.
^
Disconnect electrical connectors from both oxygen sensors. One oxygen sensor is located in each catalyst/exhaust manifold.
3.
Raise and support vehicle.
4.
Disconnect flex-pipe hanger from the underbody.
5.
Remove three-way catalytic converter retaining nuts from muffler inlet and flex-pipe inlet from Y-pipe, then remove three-way catalytic
converter/flex-pipe from the vehicle and set it aside for re-installation later.
6.
Inspect three-way catalytic converter as follows:
^
Looking through the three-way catalytic converter inlet, inspect substrate for blockage. See Figure 1. If total surface of substrate is 10 percent or
