Question about 1991 Cadillac DeVille
The Oxygen Sensor is located:
Under hood, center, front engine area, above exhaust pipe flange, mounted in exhaust manifold
Under hood, center, rear engine area, above exhaust pipe flange, mounted in exhaust manifold
I hope helps (remember to rate this). Good luck.
Posted on Oct 05, 2010
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Posted on Jan 02, 2017
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