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paulrice
User
May 31, 2010, 7:38 AM
Post #1 of 2
(1293 views)
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2004 cadillac seville sls 4.9 po420 code bank 1 sitting in car bank 1 is on what side? i am going to replace the o2 sensor first on bank 1 but dont know what side bank 1 is
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Hammer Time
Ultimate Carjunky
/ Moderator
May 31, 2010, 8:06 AM
Post #2 of 2
(1290 views)
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Don't waste your money. The O/2 isn't the problem. If you have no leaks in the exhaust system ahead of the converter, then you will have to replace the converter.
I assume you meant the engine size is 4.6 since they didn't make a 4.9 in 04
Bank one would be the right or rear side of the engine.
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