1999 Cadillac Deville Oxygen Sensor

1999 CADILLAC DEVILLE
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LEANDER
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Engine Mechanical problem
1999 Cadillac Deville V8 Front Wheel Drive Automatic
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I just would like to know how many oxygen sensors are there on a 1999 Cadillac Deville with the Northstar engine (V8).
Apr 19, 2008 at 5:34 PM
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BMRFIXIT
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Heated O2 sensors on exhaust manifolds each side of engine
post converter under center of vehicle at rear of catalytic converter
pre converter under center of car at front of converter
Apr 19, 2008 at 7:11 PM