O2 Sensor

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01-24-2012, 08:01 AM

smokey27

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Join Date: Jun 2011

Location: Pennsylvania

Posts: 2

O2 Sensor

Has any one changed out the Oxygen Censor on the H3. I'm not about to pay $300.00 for something that looks like a relatively easy fix.

01-24-2012, 09:04 AM

lcurle

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Join Date: Jan 2012

Location: Kansas

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are there only 2 or are there 4 on the H3? I haven't been that far through it yet.

01-24-2012, 09:13 AM

Doc Olds

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Location: Boat Town USA MI

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This was MOVED because it is NOT an FAQ.

See why: https://www.hummerforums.com/forum/h...section-19461/

01-24-2012, 09:55 AM

Doc Olds

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Quote:

Originally Posted by lcurle

are there only 2 or are there 4 on the H3? I haven't been that far through it yet.

Year and model please?

There are front and rear.

With the I5, since there is only one bank = 2.

LH8 V8 has two banks = 4.

The front is in the exhaust manifold before the mini/pup CAT, the rear is after it.

01-24-2012, 10:00 AM

Broken Halo

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Join Date: Aug 2009

Location: Rochester Hills, Michigan

Posts: 1,435

If you are going to replace it yourself, use antisieze on the threads, and DO NOT USE ANY SILICONE SEALANT! you'll ruin the sensor!

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