My Experience 99 DOHC 165,000 Replace O2 Bank 2 S1 - Taurus Car Club of America : Ford Taurus Forum
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post #1 of 5 (permalink) Old 07-18-2019, 07:54 AM Thread Starter
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My Experience 99 DOHC 165,000 Replace O2 Bank 2 S1

Was getting P1151. Bank 2 Sensor 1 O2 is now in. Had to jack and come up from below. There is a horizontal pipe between the top of the radiator and front exhaust manifold, no room for me. don't forget to apply emergency brake, chock the back tires and a jack stand would be good. 20 year old car so was in tight. applied WD40. Would not budge even with O2 socket loaner from Autozone. So... neighbor held a pipe wrench over the O2 and I "Slowly" pressed with my foot. No kicking. That did it. I would not hammer. Maybe gently tap. O2 was pre-greased but I applied very little more. threads were rough", so screwed in slowly. Half turn in, quarter turn back out. Repeated until in. Code off for 40 miles so far, longest yet. we'll see. Also, panicked when I saw smoke coming from newly installed O2, until I realized it was just the WD40 burning off the hot manifold. Thanks all !!
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post #2 of 5 (permalink) Old 07-18-2019, 09:23 AM
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WD40 is not really designed to be a good penetrating oil. Next time try PB Blaster, Kroil, etc or a 50/50 mix of tranny fluid and acetone along with heat (Propane torch with propane or better yet MAPP gas).

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post #3 of 5 (permalink) Old 07-18-2019, 09:57 AM Thread Starter
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Thank you. WD40 was not my first choice but available. PB Blaster would have been much better. I suggest everyone have a can ready. You never know when you may need. Manifold was still somewhat hot.
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post #4 of 5 (permalink) Old 07-18-2019, 03:56 PM
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Quote:
Originally Posted by MCHERRY View Post
Thank you. WD40 was not my first choice but available. PB Blaster would have been much better. I suggest everyone have a can ready. You never know when you may need. Manifold was still somewhat hot.
For removal, I cut the wires off close and then use a deep wall socket as it is much stronger than the sensor socket. Then use the special socket for install.


-chart-
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post #5 of 5 (permalink) Old 07-18-2019, 04:30 PM
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7/8" (22mm) combo or stubby wrench. B2S1 is the easiest of the 4 to r&r.
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