O2 sensor

Maintenance/Repairs
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1

Is there a home kit you can use to detect what sensor is bad, I have a 1999 suburban

2

You should try to get to autozone and ask them to scan the truck then post the results here.

3

I did not know they could that for you,thanks.

4

If you’re interested, you can buy a basic scanner for about $60 or so. That can also be done at an autozone, or other places like it.

But a scanner will NOT tell you that an O2 sensor is bad. It will tell you where to start with diagnosis of a problem.

5

Yes, there are OXYGEN SENSOR TESTERS. I wish more (many more?) mechanics would use them. Their use would save a lot of erroneously changed oxygen sensors. Here’s one for $126 http://www.tooldiscounter.com/ItemDisplay.cfm?lookup=SHEST05&source=froogle&kw=SHEST05126 :