Electrical O2 sensor replacement on T2 - Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!

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post #1 of 12 Old 05-07-2019, 12:47 PM Thread Starter
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O2 sensor replacement on T2

Does anyone know the proper incantation and tool combination to get the O2 sensor out on a 1987 Turbo II system. Engine is in a 1986 Lebaron konvertible which is essentially the same size engine bay as a Daytona, even uses the same firewall heat shield. When I get my O2 sensor crow's foot style socket on I can't get any place to turn it even with a long handled ratchet.
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post #2 of 12 Old 05-08-2019, 04:35 AM
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Re: O2 sensor replacement on T2

I remember removing the power steering pump and brackets out of the way to give me access to the O2 sensor.
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post #3 of 12 Old 05-08-2019, 07:54 AM
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Re: O2 sensor replacement on T2

It is a tight squeeze but I use a deep O2 Sensor Socket, 1/2 Swivel, Long Extension and 1/2" Drive Ratchet to loosen.
Once it is loose you can get your left hand in under/between the P/S pump and firewall and turn it out the rest of the way with a short/stubby 7/8" wrench.

CAUTION: Be careful of any pointy screws protruding through the firewall from the passenger compartment.
I have one and I placed a vacuum cap on it, tired of cutting myself.

https://www.autozone.com/loan-a-tool...set/272729_0_0
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post #4 of 12 Old 05-08-2019, 08:15 AM Thread Starter
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Re: O2 sensor replacement on T2

I have the longer of the two black ones, my second, I broke the first on a Dakota's rear O2 sensor. Several suggestions on the SDAC group on FB said remove the power steering pump, so I may just go that way. Thanks!
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post #5 of 12 Old 05-08-2019, 08:20 AM
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Re: O2 sensor replacement on T2

Your choice...
Me, I do not want to do any more work than I have to and when I replaced my P/S pump a few years back it was a Total PITA.

As I have learned over the years...
"Work Smart, Not Hard".

Good Luck!!!
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post #6 of 12 Old 05-08-2019, 09:17 AM
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Re: O2 sensor replacement on T2

I use a large pair of channel lock pliers and snap the old sensor off. then use a normal 6 point socket. sometimes I have to heat it up with a MAP gas torch to get the first few turns.
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post #7 of 12 Old 05-08-2019, 09:39 AM
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Re: O2 sensor replacement on T2

I normally break the sensor myself. hammer and a pry bar.
1 good smack and i can get a normal socket on it with a swivel.
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post #8 of 12 Old 05-09-2019, 07:30 AM Thread Starter
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Re: O2 sensor replacement on T2

I have been somewhat busy this week so haven't really had time to try anything. Thanks for all the suggestions.
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post #9 of 12 Old 05-09-2019, 08:34 AM
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Re: O2 sensor replacement on T2

After breaking my 1st 02 censer socket, I now have two impact's that size 1/2" drives. One with the slot and one without and I'll die with 'um but I will never break another one, lol
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post #10 of 12 Old 05-14-2019, 01:08 PM
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Re: O2 sensor replacement on T2

After 33 years my 87 was rust welded on that O2 sockets couldn't get off. So, moved the power steering, fuel/vacuum lines & wires safely out of the way, cut off the O2 cable then broke off enough to get a socket on, heated exhaust manifold around O2 with torch until super hot, sprayed with Twister & let soak overnight (power steering fluid works to). Be safe, make sure a fire extinguisher's close when spaying Twister onto a hot manifold & it's toxic so do it with the doors open & leave after everything cools down. Next morning repeated & again after I got home from work. Next morning I repeated but while still hot quickly used a heavy duty 1/2 inch 6 sided socket, swivel, extension & 3 1/2 ft breaker pipe and it was still a major effort to get off. After all that I feel very very lucky it didn't strip the manifold threads but there were no other options.
TIP: Put some aluminum foil or aluminum ducting tape along the inner socket wall. May take a few tries to get it right but it makes a super tight fit onto the O2 sensor and might prevent O2's softer sides from rounding off.
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post #11 of 12 Old 05-14-2019, 08:57 PM
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On different vehicles I have elected to just drill a new hole and put a hose clamp one on in a more convenient spot just not facing downward so it doesn't sit in moisture. Just an "if all else fails".
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post #12 of 12 Old 05-16-2019, 06:06 PM Thread Starter
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Re: O2 sensor replacement on T2

Finally got it out, had to completely destroy the old one, then take the PS pump and bracket out of the way. Finally was able to get a socket and my 24" breaker bar and slowly unscrew it. No broken threads in the casting, new one went right in.
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