O2 sensors on Tahoe


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Old 10-12-06, 06:58 AM
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O2 sensors on Tahoe

My 1997 Tahoe engine needs service light put me a garage for an emissions check. I was billed $800 for replacement of (4) oxygen sensors. How many O2 sensors are there on a 1997 Chevy Tahoe, 4 WD, 5.7L/8cy engine? Have I been had?
 
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Old 10-12-06, 12:16 PM
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Here's some O2 sensor info. I wouldn't be surprised if it had 4, one in front of and one after the converter on a dual exhaust setup. Pretty easy to count them. Check the info for what they look like and take a look underneath.

http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/08/6e/71/0900823d80086e71.jsp

This was done at a dealership, right? About the only place I would expect to charge that much just for 4 O2 sensors. A Bosch sensor would have run you about $80 I think and all four could be replaced in an hour.
 
 

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