Replacing O2 Sensor - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 01-24-2008, 11:40 AM   #11
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yes, bad oxygen sensors have a LOT to do with bad mileage.
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Old 01-24-2008, 11:45 AM   #12
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wow I really need to get that sensor replaced!!!!! I am hoping that it also solves the problem I have when I am idle (i.e. at a red light or ever when I am coasting down a hill) my car starts bucking/shaking/studdering and my interior lights dim and i lose power in the fan for the heat. it acts like it is just doing to die. as soon as I step on the gas everything comes right back. so, what i've been doing is shifting into neutral when i am at a light so i can give it some gas. do you think this has to do with the O2 sensor as well?????
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Old 01-24-2008, 02:31 PM   #13
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no, that sounds like nothing to do with the o2.

have your alternator tested.
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Old 01-25-2008, 07:12 PM   #14
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Yes, I had my alternator and bettery checked
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Old 01-25-2008, 07:50 PM   #15
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Quote:
Originally Posted by christie0278
thank you, the picture helps alot. I am hoping that I can find someone to help me do it. I would hate to pay a mechanic again. I think i've put about $2100.00 in this car in the past 6 months!
If you can unscrew a bolt, you can do this, its really that simple. its essentially a bolt with a wire connector, nothing more to it.

What did you have to do that cost $2100? Not trying to take this off topic, but thats really quite insane.

Quote:
Originally Posted by christie0278
wow I really need to get that sensor replaced!!!!! I am hoping that it also solves the problem I have when I am idle (i.e. at a red light or ever when I am coasting down a hill) my car starts bucking/shaking/studdering and my interior lights dim and i lose power in the fan for the heat. it acts like it is just doing to die. as soon as I step on the gas everything comes right back. so, what i've been doing is shifting into neutral when i am at a light so i can give it some gas. do you think this has to do with the O2 sensor as well?????
do you have any service engine soon light on?

make SURE its an AC Delco oxygen sensor...the only other sensor that would be OK is a denso, but that is absolute last resort. NOTHING else. ESPECIALLY not Bosch.
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Old 01-26-2008, 02:16 PM   #16
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Quote:
Originally Posted by christie0278
thank you, the picture helps alot. I am hoping that I can find someone to help me do it. I would hate to pay a mechanic again. I think i've put about $2100.00 in this car in the past 6 months!
You know, if you have kids, then you certainly have the muscle to pull an O2.
You'll get dirty, but again, you have kids, you've had worse, and you'll probably bark your knuckles, but again, you have kids, so you've obviously had worse pain...
Believe me, diving in under the hood and working on something, then having it start up and purr, is one of the best feelings in the world.
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Old 01-26-2008, 02:18 PM   #17
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Quote:
Originally Posted by wjcollier07
Quote:
Originally Posted by christie0278
thank you, the picture helps alot. I am hoping that I can find someone to help me do it. I would hate to pay a mechanic again. I think i've put about $2100.00 in this car in the past 6 months!
If you can unscrew a bolt, you can do this, its really that simple. its essentially a bolt with a wire connector, nothing more to it.

What did you have to do that cost $2100? Not trying to take this off topic, but thats really quite insane.
From her intro thread...

Quote:
Originally Posted by christie0278
also I thought I would mention a few things I haev already replaced in the car...maybe someone can tell me what to expect next. (180,000 miles on the car!)

spelling doesn't count!
-rack and pinion
-master cylinder
-computer
-alternator
-intake manifold
-exhaust&muffler (twice, but i guess that'* to be expected)
-all fuel lines
I think that'* about it, but I'm sure there'* more that I can't remember!
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Old 01-26-2008, 02:49 PM   #18
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2100 is alot to most of us because we do our own work. If the car is constantly in the shop, however, most of that will be paid for labor. From that perspective, that really is on par.

Have you cleaned out your throttle body, particularly the MAF sensor and the idle air control valve? It'* amazing how much crud can come out of the IAC passage on the throttle body.
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Old 01-26-2008, 04:13 PM   #19
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I don't think she'* touched the TB. Again, Christie, easy job, you do it with basic tools, takes about an hour.
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