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Crawl under your Blaze from the passenger side and look down your exhaust pipe. You will see a sensor sticking out. Make sure the exhaust pipe isn't hot. Unplug the sensor and remove. Do yourself a favor and use only an OEM replacement sensor. Be sure to buy and anti-seeze compound and apply a little to the threads before installing.
There is probably several O2 sensors my 1997 bravada has 4
What else can I help you with?
How many 02 sensors are on a 1999 Chevy blazer?
three
How many 02 sensors are on a 1996 Chevy Caprice?
4
How many 02 sensors on a 93 Chevy 1500?
One.
How many 02 sensors on a 1990 Chevy truck 5.7 motor?
One.
How many 02 sensors on a 2002 Chevy Avalanche?
It has 4 and they are in the exhaust system.
How many 02 sensors on 97 Chevy 1500 4.3 v6?
TWO.
What is the code for the 02 sensor on a 1995 Chevy Blazer?
Answerp0137 or p0147 if it's the heater circuit.
What type of oil filter does an 02 Chevy blazer take?
A NAPA 1040 or the NAPA 1036 will do.
Where is the fuse for the O2 sensor on a 1999 Chevy Tahoe?
It don't have a fuse for the 02 sensors.
How many O2 sensors does a 95 Chevy Tahoe have?
look under you Chevy and locate the catalytic converter. Your 02 sensors are located before and after the catalytic converter on your muffler. See 1 or 2?
Where is 02 sensor location on 2002 Chevy Silverado?
There are multiple O2 sensors on a 2002 Chevy truck. They are all located on the exhaust system. There will be pre catalytic converter and post catalytic converter sensors.
Where is 02 sensor located on 2001 Chevy S10 blazer 4.3?
It might be in the diagram of parts and places, if comes with it.
