Contour V6-153 2.5L DOHC (1996)
1.
Install memory saver, then disconnect battery negative cable.
2.
From engine compartment, perform the following:
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Disconnect idle air control vacuum hose.
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Disconnect idle air control electrical connector.
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Disconnect EGR tube from the EGR valve.
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Disconnect electrical connectors from both oxygen sensors. One oxygen sensor is located in each catalyst/exhaust manifold.
3.
Raise and support vehicle.
4.
On models equipped with automatic transaxle, disconnect flex-pipe hanger from the underbody.
5.
On models equipped with automatic transaxle, 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.
6.
On models equipped with manual transaxle, remove three-way catalytic converter retaining nuts from muffler inlet and Y-pipe, then remove
three-way catalytic converter from the vehicle.
7.
On all models, inspect three-way catalytic converter as follows:
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Looking through the three-way catalytic converter inlet, inspect substrate for blockage. See Figure 1. If total surface of substrate is 10 percent or
more blocked (2 square inches of blockage), the three-way catalytic converter must be replaced.
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Blockage may not necessarily be located in one spot as illustration shows. The blockage may be spread out across the entire substrate and it may
be necessary to make an estimate of blockages on the total substrate surface.
8.
Disconnect electrical connectors from both catalyst monitors.
9.
Remove Y-pipe-to-both catalyst/exhaust manifold retaining nuts.
10.
Remove Y-pipe bracket retaining nut, then remove the Y-pipe from the vehicle.
11.
Remove right wheelwell splash shield.
