Oil pressure switch ?

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Rookie
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Oil pressure switch ?

Post by Rookie » Mon Oct 30, 2017 7:22 pm

Is there a cross reference part number for the oil pressure switch that i can get at an auto parts store.i looked at a few that would work but just not sure.i know i can order one but im doing some mantinence work on it tomorrow and would lime to have it done thanks in advance

Rookie
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Re: Oil pressure switch ?

Post by Rookie » Fri Nov 03, 2017 6:39 pm

Found one that works at the local auto parts store 9.99 and in stock

undysworld
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Re: Oil pressure switch ?

Post by undysworld » Sat Nov 04, 2017 9:27 am

That's nice to know.

Even nicer would be the part #, etc., for others to reference to as well. :wink:
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Hotzenplotz
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Re: Oil pressure switch ?

Post by Hotzenplotz » Sat Nov 04, 2017 9:58 am

undysworld wrote:Even nicer would be the part #, etc., for others to reference to as well. :wink:
my pleasure

the original VDO part # is 360 081 030 017; look for compatible alternatives
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Rookie
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Re: Oil pressure switch ?

Post by Rookie » Sun Nov 05, 2017 1:03 pm

Will do undy ill look for the box and get a part number and post it

bbonomo
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Re: Oil pressure switch ?

Post by bbonomo » Wed May 09, 2018 12:45 pm

Can someone kindly share where the existing oil pressure switch is located? Can I use it to drive a relay to turn an electric fuel pump off, in the event I lost engine power?

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pcolette
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Re: Oil pressure switch ?

Post by pcolette » Wed May 09, 2018 12:50 pm

IMG_0108.jpg
IMG_0108.jpg (140.65 KiB) Viewed 443 times
Don't know about the relay.
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bbonomo
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Re: Oil pressure switch ?

Post by bbonomo » Wed May 09, 2018 1:19 pm

Thank you! Dumb question, what does it do? I assume that it's simply a sensor to drive the light on the dash. Correct?

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pcolette
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Re: Oil pressure switch ?

Post by pcolette » Wed May 09, 2018 2:07 pm

If I'm following the schematic correctly, +24V is run to the oil pressure warning light on the indicator strip and then a wire proceeds from the second terminal on the warning light to the sensor. If the engine loses oil pressure, the pressure switch closes to ground and illuminates the warning light. This is also why the light is on when you turn on the ignition switch.

So, yes, you are correct.
Paul C.
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'89 Puch 230GE
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TechMOGogy
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Re: Oil pressure switch ?

Post by TechMOGogy » Thu May 10, 2018 12:27 pm

Related to this topic...
I noticed the other day my oil light went on while I was at light idling - truck was well warmed up.
As soon as I add a few RPM (idles about 875-900) the light goes out.
Pulled over and checked oil - levels were perfect
Any thoughts - bad switch?
72 Pathfinder | 75 710M 2.7i | 94 350GDT | 96 350GDT Worker

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pcolette
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Re: Oil pressure switch ?

Post by pcolette » Thu May 10, 2018 12:53 pm

Since the switch is relatively inexpensive, I would give that a try first.
Other than that, all other reasons for low oil pressure are not as easy to repair. Perhaps the oil pump has developed a leak? Or come partially loose? Jim LaGuardia would be a good resource for possible causes.
Paul C.
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'72 Swiss 710M (For Sale)
'89 Puch 230GE
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TechMOGogy
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Re: Oil pressure switch ?

Post by TechMOGogy » Thu May 10, 2018 1:01 pm

pcolette wrote:
Thu May 10, 2018 12:53 pm
Since the switch is relatively inexpensive, I would give that a try first.
Other than that, all other reasons for low oil pressure are not as easy to repair. Perhaps the oil pump has developed a leak? Or come partially loose? Jim LaGuardia would be a good resource for possible causes.
Makes sense
Engine was completely rebuilt so hopefully nothing serious already :)
72 Pathfinder | 75 710M 2.7i | 94 350GDT | 96 350GDT Worker

boeing7873
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Re: Oil pressure switch ?

Post by boeing7873 » Mon Jun 04, 2018 7:43 pm

Oil too thin for temperature? I run 20W50 summertime.
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TechMOGogy
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Re: Oil pressure switch ?

Post by TechMOGogy » Mon Jun 04, 2018 8:24 pm

boeing7873 wrote:
Mon Jun 04, 2018 7:43 pm
Oil too thin for temperature? I run 20W50 summertime.
After a few more test drives this is what I am thinking too
Only happens after driving straight for 1-2 hours
I can drive around for 30 mins, stop, shop, drive, etc and it does not happen
72 Pathfinder | 75 710M 2.7i | 94 350GDT | 96 350GDT Worker

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rmel
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Re: Oil pressure switch ?

Post by rmel » Mon Jun 04, 2018 9:06 pm

IMHO, add a Oil pressure sender and a Oil Temp sender -- esp. Temp.
Pressure senders typically have the idiot contact -- LOW pressure and
an analog output for actual pressure. Well worth the addition for
piece of mind.
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