ox sensor locked in - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-01-2005, 12:06 AM   #1
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Default ox sensor locked in

well i went to replace my o2 sensor, but i couldnt get the old one to even budge.... any ideas on how to get it out?
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Old 08-01-2005, 12:39 AM   #2
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heat it with a torch and or get the wrench on there and smack the wrench with a BFH (Big ******* Hammer.) Repeat as neccessary.
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Old 08-01-2005, 12:41 AM   #3
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When I did my brother'* recently, which had never been changed since the car was new, over 300000 miles ago, I gave it a real good shot of WD-40, waited 45 minutes, ran the car for no longer than a minute to get it into some shade, and it popped right out.
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Old 08-01-2005, 04:58 AM   #4
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Quote:
Originally Posted by LakevilleSSEi
heat it with a torch and or get the wrench on there and smack the wrench with a BFH (Big f*** Hammer.) Repeat as neccessary.
well i tried the second part, i even had my brother try to help me... i think im gonna try the wd-40 thing before i try heat....
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Old 08-01-2005, 06:58 AM   #5
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Liquid Wrench, let it soak for a few hours.
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Old 08-01-2005, 07:40 AM   #6
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It becomes a juggling act w/heat. But I had just driven my car and aside from working around the heat it jumped out.
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Old 08-01-2005, 12:54 PM   #7
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Default 02

If it won't come out try soaking it in a good penetrant overnight.
Then start the car to heat the manifold a couple min.
Put a cold socket on the sensor and try loosening.
Mine was stuck and it took me two days of doing this and it finally came loose.
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