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There are 2 Oxygen sensors. One is on the exhaust manifold and the other is after the catalytic converter. There are other conditions that will throw a code for an O2 sensor. It is an uncommon failure and worth about $100 so make sure that is your problem and not something simple like a vacuum leak being detected by the sensor.
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Where is the oxygen sensor located on a 2003 gm envoy?
There are two oxygen sensors. One located on the exhaust manifold and one located after the catalytic converter.
Where is the oxygen sensor signal wire on a 97 GM?
I think its the purple wire coming from the Oxygen sensor!
How do you change cabin air filter on a 2005 gmc envoy?
apparently you don't have one. gm stopped including them after 2003
Does 04 GM Envoy window control have to be programed?
does 04 gm envoy master window control have to be programed by dealer when replaced.
What could a loud clicking noise in rear quarter panel of 2005 GM Envoy XL be?
Try this link. I have a 2004 Envoy and mine is doing it. http://forums.trailvoy.com/showthread.php?t=48777
Problems with your 2004 gm envoy the alarm is not activated?
my alarm does not work 2004 envoy
What is the spark plug gap setting for a GM 2002 envoy?
.044
What does code 44 mean on a 1987 buick?
Code 44 in any GM automobile including the 1987 Buick, means that the oxygen sensor is faulty. The oxygen sensor regulates how much air goes into the motor for combustion to occur.
What kind of antifreeze do you use in 2002 GM Envoy?
Dexcool every 5 years. www.trailvoy.com All the answers for your Envoy from true enthusiasts.
What kind of wireless headphones does the 2006 GMC Envoy?
GM part # 25795363 ac delco headphone assembly. Fits 2002-08 envoy.
Why does my gas gauge on a trailblazer 2005 always marks empty?
there is a sensor inside the gas tank. if you have the GM dealer replace it.. its about $500.00.
What are the stock spark plugs for an gm envoy?
AC Delco Iridium spark plugs.
