strokinpower
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- Joined
- Apr 23, 2013
- Posts
- 195
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I noticed the other day when I got on the wifes tahoe it put out some black smoke. It also idles a little rough when you first crank it up but other than that seems to run pretty good. It has 112k miles on it and I have replaced the spark plugs recently and cleaned the throttle body. I was thinking maybe o2 sensors. I was just going to go ahead and replace all of them. I'm looking at rock auto and they seem pretty vague. Are they all 4 the same or are both the lowers the same and both the uppers the same. Anyone who has done this have any advice or tips I'd love to hear it. Thanks. No CEL by the way
