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O2 Sensors...

kewlgye

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kewlgye Enthusiast

kewlgye

Posted
Posted

I've got 107,500 miles on my truck, is it time to change the O2 sensors? Does this help with gas and/or performance? I know I've got two of them before the converters, but I don't know of any after them. All I've ever known of are the Bosch sensors, but I've read that Bosch has a bad rep, anyone know of a better brand?

mcreyaufmiller Senior Enthusiast

mcreyaufmiller

Posted
Posted

I have the Bosch on mine as well as a lot of other people, no problem. Some say they perform batter than the stocks. Anyway, just changed mine at 150k, The only ones that will affect fuel mileage is the 2 upstream sensors. The 1 downstream monitors the performance of the cat, does not do much else. GM recommends they be changed every 100k, so you are about due. Old sensors can affect fuel mileage, or so I am told.

2004GMC1500CC Enthusiast

2004GMC1500CC

Posted
Posted
I've got 107,500 miles on my truck, is it time to change the O2 sensors?  Does this help with gas and/or performance?  I know I've got two of them before the converters, but I don't know of any after them.  All I've ever known of are the Bosch sensors, but I've read that Bosch has a bad rep, anyone know of a better brand?

 

 

 

Definately change them. It will help your mpg and performance and help out your cats and my lungs.

kewlgye Enthusiast

kewlgye

Posted
  • Author
Posted
I've got 107,500 miles on my truck, is it time to change the O2 sensors?  Does this help with gas and/or performance?  I know I've got two of them before the converters, but I don't know of any after them.  All I've ever known of are the Bosch sensors, but I've read that Bosch has a bad rep, anyone know of a better brand?

 

 

 

Definately change them. It will help your mpg and performance and help out your cats and my lungs.

 

 

 

 

 

Thanks, I'll get on it.

hoorders Enthusiast

hoorders

Posted
Posted
I've got 107,500 miles on my truck, is it time to change the O2 sensors?  Does this help with gas and/or performance?  I know I've got two of them before the converters, but I don't know of any after them.  All I've ever known of are the Bosch sensors, but I've read that Bosch has a bad rep, anyone know of a better brand?

 

 

 

Definately change them. It will help your mpg and performance and help out your cats and my lungs.

 

 

 

 

 

Thanks, I'll get on it.

 

 

 

 

Im thinking of changing mine as well on my 2000 5.3. Ive never changed them before so I was wondering if its pretty straight forward...........do you just unscrew them and screw the new ones back in? :cheers:

Bish Senior Enthusiast

Bish

Posted
Posted
I've got 107,500 miles on my truck, is it time to change the O2 sensors?  Does this help with gas and/or performance?  I know I've got two of them before the converters, but I don't know of any after them.  All I've ever known of are the Bosch sensors, but I've read that Bosch has a bad rep, anyone know of a better brand?

 

 

 

Definately change them. It will help your mpg and performance and help out your cats and my lungs.

 

 

 

 

 

Thanks, I'll get on it.

 

 

 

 

Im thinking of changing mine as well on my 2000 5.3. Ive never changed them before so I was wondering if its pretty straight forward...........do you just unscrew them and screw the new ones back in? :cheers:

 

 

 

 

 

Soak them in penetrant and let it sit overnight before you try to remove them. Also, it it starts to get tight unscrewing them, stop and screw it back in a bit then work it out like a tap cutting threads. If you force it, you could strip the threads on the sensor or the bung in the exhaust.

hoorders Enthusiast

hoorders

Posted
Posted
I've got 107,500 miles on my truck, is it time to change the O2 sensors?  Does this help with gas and/or performance?  I know I've got two of them before the converters, but I don't know of any after them.  All I've ever known of are the Bosch sensors, but I've read that Bosch has a bad rep, anyone know of a better brand?

 

 

 

Definately change them. It will help your mpg and performance and help out your cats and my lungs.

 

 

 

 

 

Thanks, I'll get on it.

 

 

 

 

Im thinking of changing mine as well on my 2000 5.3. Ive never changed them before so I was wondering if its pretty straight forward...........do you just unscrew them and screw the new ones back in? :cheers:

 

 

 

 

 

Soak them in penetrant and let it sit overnight before you try to remove them. Also, it it starts to get tight unscrewing them, stop and screw it back in a bit then work it out like a tap cutting threads. If you force it, you could strip the threads on the sensor or the bung in the exhaust.

 

 

 

 

Thanks very much for the tip..... :crackup:

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