Engine Oil Pressure Switch Removal, Replacement & System Overview

We take a look at replacing the oil pressure switch, following best practices and talk through the troubleshooting and diagnostic process for basic dash warning light circuits.

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Components in the video:
- 1999 Honda CR-V
- Various Snap-On tools

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[mds]

I need to repair the wiring going to the oil pressure switch because unfortunately the pigtail that is crimped onto the wiring going to the oil pressure switch snapped off on me. Thanks for explaining this process. I'm hoping that I can address this issue now as well!

[keamomatsanee]

Thanks for that…especially about the ground path in the switch and diagram

[jaym]

It states apply liquid sealer to the threads...???

[robertmichel]

Never use Teflon tape on oil sender. Always use a liquid anaerobic sealant. Tape can get into oil passages starving critical components of oil.

[jeffreyspence]

I saw one video where they said not to put teflon tape on the threads because it would block the ground. What do you think?

[rikkydavidson]

Put rear view mirror glue on new one n seal loc it then put plastic weld or epoxy putty.over coats then clear adhesive silicone to seal epoxy

[MX]

The switch is on the left side on a 2003 Forester. A 27mm deep socket absolutely will not fit on it because alternator blocks it.
You may be able to use a racheting 17mm wrench.
Turns out mine wasn't leaking, so I left it.

[hiramalonso]

Very informative! Very helpful! Thank you!

[JSmillaa]

How does the wire come off the connector, does it just pull straight off?

[langeplanet]

Great video.
I have a 2004 Honda Pilot and when I pulled the electrical plug off, the wire came out of the plug (the female part). How do I reattach it? It looked pretty simple.

[mds]

I just replaced this switch on my 2005 CR-V today. It was leaking pretty bad!

[flinch]

Alright... one word of caution [that applies to some UK made cars of the past]: NPT and BSP 1/8" fittings have exactly the same thread pitch but different taper! They are not interchangeable - you won't get better than 2 thread engagement, and trying to give it a little extra oomph to get rid of slow leaks will be stripped thread territory faster than you can sneeze. There is NO amount of teflon tape that cures a mismatch - go buy the right thing/use proper adapter bushings as needed.

[freebird]

The oil pressure switch why is it necessary and can the engine do without?

[biffed]

I got a check engine light after this and car sounds weird when shifting 😊

[roblox_bedwars-gx]

Hi what size are the OEM oil pressure socket? Thanks.

[RandyWells]

is that the same location for an 06 crv?

[bovenzi]

I'm having trouble removing the switch. It's a clear half inch piece of plastic after removing the rubber part. How do I remove the electrical part?

[freebird]

The thread from the oilpressure switch in the inside of the engine is almost gone!! What to do now??? help!! I replaced the oilpressure switch with a new one, but I over tight it to much, the engine is 15 years old, what to do now???

[daviddigirolamo]

I have a 2010 CR-V. Do I need to drain the oil’s first before changing the sensor?

[ahmadchaudhry]

If u need a man for help then i m willing to come to you to work for u