Question about cleaning O2 sensors ???

[toledo bend jim]

I know most of you use seafoam to soak yours in but was wondering if you could use Acetone or would that damage them. Thanks in advance for the help. TBJ

[Tr21Pd]

Not sure about acetone ,, but i ususally take a baby food jar ,, and let the sensor sit in it for a while ..witht he seafoam .. then take a new toothbrush and clean it good ... werx pretty good .....

[Mike Daleo]

is there a post on here somehwere that tells you more about doing this, like location and step by step?

[Tr21Pd]

http://www.boatsetup.com/O2sensor.pdf

[Mike Daleo]

Thanks

[toledo bend jim]

Thanks for the help guys. TBJ

[fishy1]

I have used sea foam and it works ok, but mercury makes a carbon cleaner that works ten times better. It comes in an aerosol can. Spray it in a small cup and soak the sensor. I cleaned the sensor housing too, it was caked with carbon. Try the mercury cleaner, it works.

[plki]

Even better on carbon is GM X-66. You can buy it at any GM dealer outside of California (any chemical that works good is banned in California). It softens and disolves even the thickest carbon deposits in minutes. We have a friend at an Arizona dealer that secretly ships it to my shop here in So Cal. We use it daily to clean throttle bodies, O2 sensors, fuel injectors, and EGR valves of stubborn carbon deposits.


Modified by plki at 5:54 AM 1/10/2007

[Hamfisted]

Don't forget to clean the cross over "dog bone" there in the O2 sensor base. You have to remove the O2 base (two 10mm bolts...) and you'll need a new gasket ($15 at dealer...). But that dog bone clogs up with carbon worse than the O2 sensor itself, and this will severely block gas flow to the O2 sensor. I use Sea Foam cause it's easy to find (Advance Auto, NAPA, CarQuest, Northern Tools...). Amsoil Power Foam is also a great cleaner.

-Mike