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Old 02-10-2012, 10:05 AM   #1
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Question Small oil leak around oil pressure sensor - help

I took my CL-S in for an oil change (Mobil 1 Syn) and tire rotation yesterday and in the "Comments" section of the "Acura Multi-Point Vehicle Inspection Checklist", the tech noted:

"has a small oil leak around oil pressure sensor"

First of all, where is the oil pressure sensor? And what could be causing the leak - any common problems in/around this area that you know of?
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Old 02-10-2012, 11:16 AM   #2
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The sensor is #17, located on the oil filter housing. Theres an o-ring on it:

Click the image to open in full size.

#29, part number 91319-PR3-003, lists for $2.50. Isn't difficult to install but you may get some oil leaking out when you pull out the sensor. Its possible its the o-ring from the solenoid (#15) too.
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Old 02-10-2012, 11:21 AM   #3
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Perfect, thank you! Is this relatively easy to get to and replace both o-rings on my own, I hope?? I know my way around my Miata and Focus (ZETEC) engine but the CL has been such an easy car to maintain, I am not as familiar under the hood .
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Old 02-10-2012, 11:27 AM   #4
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#16 is the oil pressure sensor, #17 is the vtec oil pressure sensor. There are no o-rings on 16, it's tapered pipe thread. Fairly common source of oil leakage,
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Old 02-10-2012, 11:32 AM   #5
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Quote:
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#16 is the oil pressure sensor, #17 is the vtec oil pressure sensor. There are no o-rings on 16, it's tapered pipe thread. Fairly common source of oil leakage,
Gah, youre right.
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Old 02-10-2012, 11:50 AM   #6
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Quote:
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#16 is the oil pressure sensor, #17 is the vtec oil pressure sensor. There are no o-rings on 16, it's tapered pipe thread. Fairly common source of oil leakage,
So I just need to replace #16 then due to the oil leak?
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Old 02-10-2012, 3:15 PM   #7
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Most likely the oring is bad
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Old 02-10-2012, 3:17 PM   #8
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TLer Trash just said that #16 is a threaded pipe - no-oring...
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Old 02-10-2012, 4:11 PM   #9
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if its expensive i may have one for you lmk.
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Old 02-10-2012, 5:18 PM   #10
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Quote:
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if its expensive i may have one for you lmk.
StreetKA - PM'd you..
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Old 09-16-2014, 1:47 PM   #11
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oil pressure sensor

[IMG] I'm trying to find where the oil pressure sensor is located. I installed a new variable valve timing switch (#17 on the drawing) and from what I can see, it appears the oil pressure sensor is just inches away. Is it covered by a black plastic/rubber Hershey"s Kiss shaped cover? If so, does it just come off by pulling it or does it unscrew? Do I need to drain the oil prior to removing the oil pressure sensor? Thanks
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Old 09-16-2014, 1:57 PM   #12
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^^Yes, the oil pressure sender has a boot over it. Peel the boot back (sometimes they're stiff, and will crack). The wire terminal is a spade type; it pulls straight off. You don't have to drain the oil.
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Old 09-16-2014, 2:33 PM   #13
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You're awesome!
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Old 09-17-2014, 3:02 PM   #14
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I had to do mine last year it was only $100 for the dealer to do it.
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Old 09-17-2014, 3:02 PM
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