Question about 1999 Chevrolet Blazer

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Oxygen sensor where is the location of the oxygen sensor for 1999 chevy blazer?

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Exhaust pipe,You my perhaps have two oxigen sensors one at out of engine and another one before or after catalyst converter

Posted on Jan 24, 2009

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Right in front of the catalytic converter

Posted on Jan 24, 2009


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Posted on Jan 02, 2017

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SOURCE: 1997 chevy blazer oxygen sensor

Located after the catyalitic converter,in the exhaust pipe

Posted on Sep 05, 2011

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1 Answer

I put a new oxygen sensor on my 1999 chevy 4x4 blazer and it still has code p0146

This is Oxygen sensor circuit has no activity Bank 1 sensor 3 That means the computer sees no change from bias voltage (451mv) to a plus voltage (451mv-890mv) and a drop voltage (359mv-100mv) best describe as a open circuit must test at computer pin to determine open in wiring.

Nov 10, 2013 | 1999 Chevrolet Blazer

1 Answer

Diagram oxygen sensor

With a single exhaust, one in each y-pipe leg, one for each bank. Sensor 1 bank 1, sensor 1 bank 2. Sensor 2 should be after the cat. Sorry, I don't have decent picture.

Sep 01, 2017 | 2001 Chevrolet Blazer

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How do i locate and replace a temp sensor for a 1999 chevy blazer

There are two one for coolant fan and one for engine temp . engine temp is usally located in the side of the head on driver side by exhaust manifold .
coolant fan temp sensor is located on the intake near the thermostat housing .

Jun 02, 2012 | 1999 Chevrolet Blazer

1 Answer

1997 chevy blazer oxygen sensor bank 1 sensor 2 location

Located after the catyalitic converter,in the exhaust pipe

Sep 05, 2011 | Chevrolet Blazer Cars & Trucks

1 Answer

Where is the cam-position sensor located on a 1999 chevy blazer

The camshaft position sensor is a part of the distributor

Sep 04, 2011 | 1999 Chevrolet Blazer

1 Answer

How many oxygen sensors are on a 1999 chevy blazer?i found 3 one on each manifold before the cat and one after the cat. but the guys at the local auto parts store said that there are 4 total. am i missing...

if it has 2 cats then it has four sensors. i cat 3 sensors. i dought they all went bad. o2 sensor malfunction will not cause a cat efficiency belw threshold code. i would guess a baf cat on bank one.but if air pump was bad it might be poluted with carbon.try driving it hard for a bit. mabee it will clean up

May 30, 2010 | 1999 Chevrolet Blazer

2 Answers

How do I replace the Oxygen sensor on a 2002 Chevy Blazer?

here is a link to a YouTube video of the job, all sensors are basically the same.

Nov 17, 2009 | 2002 Chevrolet Blazer

1 Answer

Need to replace oxtgen sensor

oxygen sensor should be located in one of the manifolds under the blazer it may have 2 you can see them they will be screwd into the pipes connected to exhust with wire out the top of them

Mar 24, 2009 | 1995 Chevrolet Blazer

1 Answer

How do I replace the oxygen sensor in my '99 chevy blazer? Does it have to be done by a mechanic?

No all you need is oxygen sensor socket it located on the actual exhaust pipes. Its just screw in exhaust system and has an electrical plug. Very simple Good luck and thanks for using FIX YA

Jan 25, 2009 | 1999 Chevrolet Blazer

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