Oil Pressure Port Location for adding an aftermarket oil pressure sending unit - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 04-09-2009
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Oil Pressure Port Location for adding an aftermarket oil pressure sending unit

Ok So I spent countless hours trying to research it but found up nothing. I am adding an oil pressure Gauge to my 2004 3.0L. Can anyone help point me out to where I can hook up my sending unit on my 3.0L Block? I got the stainless steel lines so I can remote mount my sender unit to the firewall. I found in some other posts that there is a port behind the Passenger side Heads but this was for a 2000 that has a stock oil pressure gauge and sending unit. If you have some pics that would be great too. Thanks.
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Old 04-09-2009
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OHHHHH Morgan...

Time to whip out those '04+ books...




There should most definately be a sending unit somewhere on that block. I'm sure there's an idiot light that pops up on those 04+ trucks in that center display. It's gotta be sending a signal to the computer. If it were me, I'd find that sending unit, add a 'Tee'/'T', and have BOTH sending units connected to the block. That's only if there's only one place to measure/take oil pressure. If there's more than one, just unplug that new found hole, thread in your new sending unit.
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Old 04-09-2009
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OHHHHH Morgan...

Time to whip out those '04+ books...
Time for you to start charging.
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Old 04-09-2009
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I got paypal. Want an addy? lol.


/end hack.
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Old 04-09-2009
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I only have the Chilton book and it dose not do a good job of showing the features of the engine or at least a diagram to certain parts of it. The main reason for adding the aftermarket gauge so I can have a better tabs on my oil pressure. I do check my oil at least once a week or every fill up of gas. But I just want to have a backup caution other then the "idiot light" showing up because I forgot to check my oil dipstick.


If anyone has some suggestions on what books to get too for the ranger besides the Chilton let me know. Anything helps.
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Old 04-09-2009
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Originally Posted by FRXLT View Post
I only have the Chilton book and it dose not do a good job of showing the features of the engine or at least a diagram to certain parts of it. The main reason for adding the aftermarket gauge so I can have a better tabs on my oil pressure. I do check my oil at least once a week or every fill up of gas. But I just want to have a backup caution other then the "idiot light" showing up because I forgot to check my oil dipstick.


If anyone has some suggestions on what books to get too for the ranger besides the Chilton let me know. Anything helps.
You wern't thinkin with your dipstick, jordeh!



lol.

Ok...down to business.

Looking at my '01 book, the 3.0L (2V) oil pressure switch(not sending unit, it's a on/off switch) is located on the back of the block on the passenger side, just behind the valve cover and head. Appears to be on the top of the block itself.


Last edited by Fx4wannabe01; 04-09-2009 at 05:59 PM.
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Old 04-09-2009
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#27 = Oil Pressure Sender(wow..this time they call it a sender. lol.)

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Old 04-09-2009
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I saw that same picture that Bob (Rwenzing) the same picture and looked on my block and around that area and don't see anything that is like that. The only thing I see in that area a is a 02 sensor for the exhaust manifold. I am going to take some pictures of the area.

Edit: I see this one that is visible but not it:


Then there is this one which you see the plug in the left corner had to crank my arm around and shove the camera around to get a somewhat pic of it:

Last edited by FRXLT; 04-09-2009 at 06:37 PM.
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Old 04-09-2009
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It's most likely in an area where you can't see it. I suggest taking out your trans crossmember and letting the trans and engine tilt down. That'll lower the back end down enough to gain access to see or even work on it.

Waiting for Trent to pull out his '04 Specific books for clarification.
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Old 04-09-2009
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Like previous 3.0 Rangers, the 2004 has the oil pressure sender port in the block behind the PS head. Look for a single green/white wire going to the sending switch connector. In this photo, it is probably hidden from view by the 4-wire oxygen sensor connector:

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Old 04-09-2009
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Thanks Bob I found the little sucker. All the way in the back like you said. So I just need to get a 1/4" T connector so I can use the stock sender and the aftermarket sender correct?
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Old 04-09-2009
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Yes. John Griggs used to have an attached photo of his tee setup but I think it was lost when we had site problems a while back.
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Old 04-09-2009
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Those are all the old posts I was reading and looking over but yes no pictures at all So I was kinda lost on the location of this sender unit. I think I will make a short how-to of this mod for most people trying to do it or want to do it. Thanks again for the help.
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Old 04-09-2009
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please do I have always wanted to know
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Old 04-10-2009
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So I guess there is no other way or other port? This thing is going to be a tricky one to get too. Big PITA!
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Old 08-31-2009
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Hey quick question. Is the oil sending unit on a 2000 3.0 Ranger a two-wire or one-wire sensor? I've been looking all over my engine for mine but I looked at these pics and I found two sensors on my truck where these show up in the pics (under the intake and behind the power steering pump) but one is a one-wire sensor with a dual-connector and the other is a two-wire sensor with a dual-connector. The guy at the parts store sold me a single-connector sensor. Ideas?
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Old 08-31-2009
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Originally Posted by computerflake View Post
Hey quick question. Is the oil sending unit on a 2000 3.0 Ranger a two-wire or one-wire sensor? I've been looking all over my engine for mine but I looked at these pics and I found two sensors on my truck where these show up in the pics (under the intake and behind the power steering pump) but one is a one-wire sensor with a dual-connector and the other is a two-wire sensor with a dual-connector. The guy at the parts store sold me a single-connector sensor. Ideas?
It is a single wire sending switch in the block behind the passenger side cylinder head. Look in through the wheel well with the rubber splash shield pushed out of the way. The wire color is green with a white stripe.

See the 3.0L diagram in post 6 of this thread.
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Old 09-01-2009
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I looked very carefully at the pic but I couldn't tell where that was on the engine. I think your post tells me everything I needed to know. Thanks for the info. I want to get it changed ASAP to make sure it IS the sensor and not the oil pump. I've got a camping trip to KY planned this weekend. :)
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Old 09-02-2009
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Something else to consider doing.
"Dummy" Gauge

I remembered this from a while back.I thought he had done the "T" setup using the factory and aftermarket gauges but didn't see it on the site .
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Old 09-02-2009
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Something else to consider doing.
"Dummy" Gauge
Unfortunately, the dummy gauge fix doesn't work on Ranger clusters 1996 or newer.
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Old 03-27-2010
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What size wrench do I need to take out the sending unit? Is it also easier to go threw the wheel well?
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Old 03-29-2010
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I used a spark plug socket and several long extensions. Going through the wheel well would never have worked on my 2000 V6 XLT. Going over the back took about 10 minutes. It took longer to find it than it did to put anti-sieze on it and tighten it back down!
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Old 03-29-2010
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Thank you, and do you know what to do about the oil dummy light? Is there any way to make it go away?
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Old 03-29-2010
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Is your's stuck on?
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Old 03-29-2010
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Yeah when I unplug the wire it comes on but I have to take it out to put the gauge in.
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