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Location of O2 sensor on 2.8L '86 Firebird

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Old Jul 25, 2010 | 09:19 PM
  #1  
Keegancw's Avatar
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Location of O2 sensor on 2.8L '86 Firebird

I seem to be having trouble locating the O2 sensor on my '86 Firebird.

Could anybody post a picture of it so I can relate it to other parts of the engine? Maybe have it circled in a bright color so I know exactly what I'm looking for?

It seems silly, but I just can't seem to find it.

Thanks.
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Old Jul 25, 2010 | 09:41 PM
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From: Fargo
Car: 88 Camaro
Engine: 2.8v6
Transmission: 700 R4
Re: Location of O2 sensor on 2.8L '86 Firebird

If its in the same place as my Camaro it is on the Y pipe on the on the passenger side right before the cat. you should be able to see it pretty easy it you jack up the front passenger side.
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Old Jul 25, 2010 | 09:42 PM
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Re: Location of O2 sensor on 2.8L '86 Firebird

Oh okay then. Thank you... I'll take a look. Problem is getting it up (I don't have any jacks or lifts)
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Old Jul 25, 2010 | 09:45 PM
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Car: 88 Firebird.
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Re: Location of O2 sensor on 2.8L '86 Firebird

I've changed mine with out jacking it up. You'll probably need lots of PB blaster and a 7/8in wrench.
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Old Jul 25, 2010 | 09:46 PM
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Re: Location of O2 sensor on 2.8L '86 Firebird

Alright. Well now that I know where to look, it should be easier to find. Did you get underneath your car to change it?
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Old Jul 25, 2010 | 10:07 PM
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From: LeRoy, NY
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Re: Location of O2 sensor on 2.8L '86 Firebird

Originally Posted by Keegancw
Alright. Well now that I know where to look, it should be easier to find. Did you get underneath your car to change it?
That's the easiest way to get at it. You'd have to go through the floorboards otherwise. You won't be able to get it out without getting the front end high enough to get some decent leverage on the thing. Which is something you will need as it's probably been in the pipe for years.
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Old Jul 26, 2010 | 12:18 AM
  #7  
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Car: 89 Firebird
Engine: 2.8L out of a 89 camaro
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Re: Location of O2 sensor on 2.8L '86 Firebird

i found using a little bit of heat helps it break loose. a torch works nice when you have the room. just don't heat it up to much or you will have a nice sized hole in the exhaust.
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Old Sep 7, 2023 | 06:42 PM
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Car: Pontiac Firebird
Engine: V6 2.8L
Re: Location of O2 sensor on 2.8L '86 Firebird

Originally Posted by Killert
I've changed mine with out jacking it up. You'll probably need lots of PB blaster and a 7/8in wrench.
Is there only one oxygen sensor? I found the one by the converter under the car.
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