Oil pressure gauge sensor questions [merged] oil sender

[sinracing]

All oil sender threads are merged here.

going down the road today i noticed my oil pressure gauge was reading nothing or zero depending on how you look at it..on my stock gauge..

i immediatly pulled over to check my oil and found that it and the rest of my car was fine..its still running fine and everything so i came home to check vfaq.com and it said that my sensor could be the culprit..

so my question is there a website or link to a page that will show my hw to check my sensor??? and or replace what is needed to read my oil pressure... or shuold i just say #### it and get a aftermarket gauge right now because its more accurate anyways?..

yeah im new around here so go easy on me..but i didnt think this was a dumb question or anything so thats why i put it here..

 

[kmoore]

Autometer Oil pressure gauges have an adapter on their oil sending units. So, basically you have two sizes to choose from.

 

[Strm Trpr]

The thread on the oil filter bracket is a 1/8 BSPT.
Most gauge senders are 1/8 NPT.
You can find an adapter at Mc Master Carr for way less than what Autometer sells their adapter for.
You can even get one that can handle up to 2900psi.
You need a 1/8 BSPT Male to 1/8 NPT Female adapter.

 

[Glliw]

Cool, thanks strm trpr. Is Mc Master Carr on the internet or is that a store that I don't have around here?

Which style gauge is better? electronic or mechanical?

 

[Strm Trpr]

Here's a link. http://www.mcmaster.com/
Once you're on the site, look in the upper left hand corner and type in the following: 1/8 bspt male to 1/8 npt female
This is the part number that you want: 4860K141

I'd definitely go with an electrical gauge.

 

[the_skin_eater]

I got me an electrical...Just re-tapped the stock hole, and it fits perfectly...

 

[Glliw]

Thanks again strm trpr.

Yea, from what I'm reading now electronic seems the way to go. Just when I first started looking I only saw the full sweep, not the short sweep, and the full sweep is like 180 bucks. . But now that I realize the short sweep is only 70 bucks, I'll go electronic.


One other question, do the autometer c2 pyrometer gauges come with the probe as well?

 

[the_skin_eater]

Just when I first started looking I only saw the full sweep, not the short sweep, and the full sweep is like 180 bucks. .

But they so sexy!!!!

I got a full sweep...Ya, more expensive, but ehh...Oh well.

 

[Glliw]

Heh, money doesn't sprout out of my armpits though.

 

[DSM_Roller]

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I bought a 90 oil filter housing (picture is not mine), but it only has a socket for one of the sensors. I am assuming it's the bigger one. what is the other one?

 

[DJYoshaBYD]

I want to know this too... which one is oil pressure and which one is oil temp?

 

[kmoore]

The oil pressure sending unit is the one on the right. (the right arrow)

 

[DSM_Roller]

Thanks. I wonder what housing I purchased. There is no fitting to put that sensor on mine.

 

[Splitpi]

Right one is the Oil Pressure Gauge Sender. Left one is the oil pressure switch.

 

[DSM_Roller]

what does the oil pressure switch do? Right now, i only have the switch installed

 

[DJYoshaBYD]

it turns the oil light off and on... telling you when oil pressure is low...

 

[awinterstale]

Ok I got a 95' gst. i've search this but found nothing. what happened was that my stock oil pressure gauge does not work and when i looked under the hood the oil sending line that im guessing goes into the car is severed and just hanging.

i cant find the other end coming from the dash side. My question is where should i run a new wire to? Just make my own hole into the car and splice it into the correct wire? And if so what wire would that be? Thanks!!

 

[1gcrazy]

Ok I got a 95' gst. i've search this but found nothing. what happened was that my stock oil pressure gauge does not work and when i looked under the hood the oil sending line that im guessing goes into the car is severed and just hanging.

i cant find the other end coming from the dash side. My question is where should i run a new wire to? Just make my own hole into the car and splice it into the correct wire? And if so what wire would that be? Thanks!!

Take the old wire and add a female connector onto it. Put it back ONTO the oil pressure sending unit and if your gauge works then you're golden...

http://www.repairclinic.com/0081.asp?RccPartID=240870

Oohh, after reading that it was under the hood and not AT the sender....just keep looking man, it couldn't have gone far if its just "severed"

 

[Jordanbutter]

So when installing my aftermarket oil pressure sender I wanted to screw it in tight so it wouln't leak oil I even used some pluming tape. However I had no idea that the housing it screws into is plastic, so of course it cracked and eventually broke. Now unless that part is only $20 I cant replace it. How would I go about finding what that housing even is and how could I fix it without replacing it? Is it part of the oil pan? Thanks.

 

[Nicks2319]

Where did you try to screw it into? Did you try to replace the stock sending unit with an aftermarket sending unit? I'm trying to get an idea of what exactly cracked.

 

[Splitpi]

Ya, take a photo of what you screwed it into. Because the stocker location is metal.

I do have a question in regards to using plumbers tape/RTV to seal it. The stock sender is connected to the gauge by single wire. As the pressure changes, the electrical resistance inside the sender varies and thus the gauge moves. Ineffect the line is a + voltage and is grounded by the sender depending on the pressure reading. So if plumbers tape is used or thick RTV, this could interfere or provide a horrible ground for the sender and thus throw off the Sender's readings to the gauge. Anyone have experience with this?

 

[awinterstale]

ok here's a picture of what i mean... see how the wire just ends? I need to know where it goes so i can run a new wire. Can someone please look and get an idea where it goes? thanks!

 

[Cs4g63]

It connects to the sending unit, the brass colored object bellow the crank pulley. There is a piece on it that looks like a nail head sticking out. It connects to it there.

 

[awinterstale]

thank you i've been looking forever!

 

[Splitpi]

The Red Circle is where the Gauge wire goes on the oil sender.

 

[awinterstale]

i just connected it and the pressure gauge works! i would of never guessed it. thanks alot!