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Best penetrating oil for oxygen sensors ? #4604017
12/15/17 12:55 AM
12/15/17 12:55 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline OP
Merkava_4  Offline OP
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Acetone and transmission fluid ? I wish there was a way to put it in a spray can.

Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604022
12/15/17 01:01 AM
12/15/17 01:01 AM
Joined: Nov 2008
Posts: 9,042
Phoenix
dishdude Offline
dishdude  Offline
Joined: Nov 2008
Posts: 9,042
Phoenix
They put anti-seize on them, they usually come right out.


2018 Challenger SRT
Re: Best penetrating oil for oxygen sensors ? [Re: dishdude] #4604026
12/15/17 01:05 AM
12/15/17 01:05 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline OP
Merkava_4  Offline OP
Joined: Jan 2007
Posts: 17,501
Clovis, CA
dishdude, I wish I lived in your world; the perfect world. grin2

Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604028
12/15/17 01:12 AM
12/15/17 01:12 AM
Joined: Nov 2016
Posts: 1,278
WI
HoosierJeeper Offline
HoosierJeeper  Offline
Joined: Nov 2016
Posts: 1,278
WI
Take 'em out while the exhaust is hot. Last time I replaced one on my Liberty, about 1.5 years ago, did it while it was hot with a shot of PB blaster, O2 socket and breaker bar, it came out so easily.


15 Jeep KL Limited V6: Formula Shell 5W20
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96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604030
12/15/17 01:18 AM
12/15/17 01:18 AM
Joined: Nov 2008
Posts: 9,042
Phoenix
dishdude Offline
dishdude  Offline
Joined: Nov 2008
Posts: 9,042
Phoenix
Originally Posted By: Merkava_4
dishdude, I wish I lived in your world; the perfect world. grin2


No you don't, trust me on this. grin2

Hoosier makes a good point, get the slotted socket and don't use a wrench. I've never needed a breaker bar, all mine came right out with a ratchet.


2018 Challenger SRT
Re: Best penetrating oil for oxygen sensors ? [Re: dishdude] #4604031
12/15/17 01:21 AM
12/15/17 01:21 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline OP
Merkava_4  Offline OP
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Yes I wanted to use a regular wrench, but there's no room to swing it unless I remove the transmission dipstick tube. I didn't want to take a chance on breaking that so I ended up getting one of those crowfoot style sockets.

Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604034
12/15/17 01:25 AM
12/15/17 01:25 AM
Joined: Jan 2007
Posts: 796
El Oeste
HawkeyeScott Offline
HawkeyeScott  Offline
Joined: Jan 2007
Posts: 796
El Oeste
I think more important than the oil brand is allowing whatever you use the time to soak in and do itís job. A shot of even SuperTech penetrating oil has yet to fail me if I use it the day before removal. And if you do it while hot, donít forget the gloves and sleeves.

Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604041
12/15/17 01:46 AM
12/15/17 01:46 AM
Joined: Nov 2017
Posts: 288
North of you Idaho
KneeGrinder Online content
KneeGrinder  Online Content
Joined: Nov 2017
Posts: 288
North of you Idaho

Spray it multiple times, over a 24 or 48 hour time period. That should help quite a bit. PB Blaster or any spray penetrator should work fine. All else fails, use a little heat. If it seizes and stops after it turns a little, turn it back in a little, blast it a few more times, wait, and commence process again. "Supertech" works fine!


08 Tribeca 82k PUP 5w30 wix
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Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604087
12/15/17 05:58 AM
12/15/17 05:58 AM
Joined: Sep 2013
Posts: 10,451
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,451
Indiana
I don't think the penetrating oil was doing a thing for me when I was working on my truck. The threads went too far into the cat and I am sure they were covered with 20 years of carbon. 2 came off effortlessly, but 1 had it's threads destroyed. $30 part.

Did the GM assembly guys in May of 1997 use anti seize? If so, how long does it last? I am unsure of both..


03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604093
12/15/17 06:31 AM
12/15/17 06:31 AM
Joined: Jan 2009
Posts: 2,377
wi
dave123 Offline
dave123  Offline
Joined: Jan 2009
Posts: 2,377
wi
Originally Posted By: Merkava_4
Acetone and transmission fluid ? I wish there was a way to put it in a spray can.
ohh you can or at least I can just need proper equipment to do it.

Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604101
12/15/17 06:57 AM
12/15/17 06:57 AM
Joined: Oct 2008
Posts: 19,091
Sunny Florida
SteveSRT8 Offline
SteveSRT8  Offline
Joined: Oct 2008
Posts: 19,091
Sunny Florida
Just like kneegrinder said above: Hit them with PB blaster a couple of days beforehand. I like about three applications across up to three days, then they come right out for us...


"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix
Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604113
12/15/17 07:36 AM
12/15/17 07:36 AM
Joined: Nov 2006
Posts: 19,921
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 19,921
MA, Mittelfranken.de
None work very well on an O2 sensor or spark plug, the fluid cant get past the gasket. You can spray it for a year and the threads will still be bone dry.
The rust comes from inside and the amount of corrosion is dependent mostly on climate and usage cycle, areas of low humidity and have higher year round temps will usually have no corrosion problems. Cars operated in short trip cycles in colder temps can have so much corrosion and carbon it can pull the threads or break the sensor or bung.

Get a deep 7/8 6pt socket and long extension with ball swivel on your car, cut the wire off and use a breaker bar or impact gun set on a lower setting to hammer it loose, heat the bung only with a smoke wrench if its not moving.
Running the engine doesn't help much, similar metals have similar expansion rates, steel sensor shell and steel pipe are expanding together when both are heated at the same time.


ASE L1, Master. Deutsch Meisterbrief.
Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604124
12/15/17 08:05 AM
12/15/17 08:05 AM
Joined: Jan 2013
Posts: 76
Tennessee
chrly919 Offline
chrly919  Offline
Joined: Jan 2013
Posts: 76
Tennessee
Oxyacetylene if they get too stubborn..Just did this last week.


99 Honda CRV AWD 250k
PHM 5w30 Purolator PureOne
14 Jeep G Cherokee Limited
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Re: Best penetrating oil for oxygen sensors ? [Re: Merkava_4] #4604135
12/15/17 08:16 AM
12/15/17 08:16 AM
Joined: Dec 2017
Posts: 97
Maryland
malibuguy79 Offline
malibuguy79  Offline
Joined: Dec 2017
Posts: 97
Maryland
Its really a [censored] shoot. Lube makes little to no difference. I found fords love to gaul up bad. Hope you dont have a ford


Greg...the exhaust guy
I have a 10 Yaris, 97 Tercel 1nzfe swap coming, 82 Malibu 1uzfe swap in progress, 84 Bonneville street/strip car
She has 18 Fit and 01 Forester
Re: Best penetrating oil for oxygen sensors ? [Re: chrly919] #4604140
12/15/17 08:22 AM
12/15/17 08:22 AM
Joined: May 2005
Posts: 10,279
ROCHESTER, NY
Char Baby Offline
Char Baby  Offline
Joined: May 2005
Posts: 10,279
ROCHESTER, NY
Originally Posted By: chrly919
Oxyacetylene if they get too stubborn..Just did this last week.


I was just going to mention using torches. If you're replacing the whole sensor with a new one, why not use )))HEAT((( ? Unless you don't have torches of course!

I mean, if you are only replacing the exhaust part and need to reinstall the same O2 sensor well then, using a penetrating oil is the only way...or if you don't have torches I understand this, as I don't have them either! laugh


"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX(17K)
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