oil pressure sensor ( unit )

oil pressure sensor ( unit )

Posted in the Ford Ranger Forum

First Prev
of 6
Next Last
tom

Lemoore, CA

#1 Mar 3, 2007
where is the oil pressure sensor located one a 2000 ford ranger V6 ?
BUBBA

United States

#2 Mar 24, 2007
tom wrote:
where is the oil pressure sensor located one a 2000 ford ranger V6 ?
SHOULD BE JUST ABOVE THE OIL PAN BOLTS ON THE SIDE OF THE BLOCK
Dave

United States

#3 Mar 25, 2007
tom wrote:
where is the oil pressure sensor located one a 2000 ford ranger V6 ?
The oil pressure gauge on my 2001 Ford Ranger Edge suddenly began flicking up and down or would read no oil pressure then pop up to normal, flick etc. After spending many hours looking at my Haynes manual, all over the internet and at the engine, I finally gave up and went to the Ford shop. I got the dealer to agree to let me see where this sending unit is located. Turns out the mechanic did not know either, we got the Ford factory manuals that had a picture and very little else. Looking at this for some time we finally located the sending unit. It is on the right back side (passenger) near the transmission at the top of the engine, not where you would suspect! He replaced the unit and now all is well. I hope this saves someone else the frustration and $40 it cost me to find this bit of information.
Jerry

Kalispell, MT

#4 Oct 16, 2007
Dave, thanks for sharing the info. I have a 1999 Ford Ranger, 3.0L, 4X4, XL, and I oil gauge doesn't work either. Is the oil pressure sending unit for the 1999 in the same location as in the 2001?

Jerry in Montana
Roy in NY

Valley Stream, NY

#5 Oct 15, 2008
Had the same flickering oil pressure a few years back. Dealer replaced the sending unit, which stopped the flickering. Just curious, is this a simple ON-OFF switch or does it give a variable output depending on oil pressure? Guage always comes to the exact same place?

Roy
ken in mi

Walled Lake, MI

#6 Nov 10, 2008
it is just a switch that puts the gauge in a normal range all fords from mid 80s to date are like this
TJ in OR

Portland, OR

#7 Nov 25, 2008
Very interesting... I just got a call from my Ford dealership notifying me that the oil pressure unit on my '98 Ford Explorer needs replacing. I took my truck in for the same "flickering" oil gauge issue out of concern that the oil pump could be going out since the check engine light would occassioally come on when it got too low. It appears that this is a pretty common problem. Fortunately, the OPI is much cheaper to replace than the pump. Surprisingly, it took my dealership over a day to diagnose this "common" Ford problem!
Jon

Medford, OR

#8 Jan 19, 2009
I just successfully replaced the oil pressure sending unit (also called O.P. Switch) on my:

2000 Ford Ranger V6 3.0 liter 4x4 engine.

Symptom: Flickering oil pressure needle on dashboard gauge. Stuck on L when cold. After warm up, it clicks back to the middle, as normal.

The location was really hard to figure out, so I am posting it here to save others the time.

I found it at the back, passenger side of the block, accessed from the top, not the bottom of the engine. You can't see it from below.

From the top center of the engine, look at about the midpoint of the engine at the very back. Nearest thing as you go further back is the firewall. There are 2 switches back there that screw into the block. The OPSU is the one with a single (green and white stripe) wire. The other switch has a bundle of wires to it. You have to be on top of the engine, physically, looking straight down to see it.

At the auto parts store, though, there was significant confusion over what the part was and they sold me an "oil pressure switch" that had threads on both ends, and a grey barrel shaped plastic mid section. This wasn't the right one, despite what the computer said. Apparently, one sets off an indicator light and the other switch sends variable pressure info to the dash gauge. These might be backwards on the auto parts store computer.

After locating the switch and confirming that it directly affected the needle on the oil pressure gauge (by unplugging the wire), I noted that the electrical connection had a quick-connect, not a threaded ~1/8" screw (as on the first wrong switch). Once I got the right part, it was easy to replace with a deep socket spark plug socket and extended socket wrench with one of those hinged knuckles (because of the weird angle of the switch). My switch came with teflon tape already applied to the threads of the business end. There was no oil leakage during replacement either. 5 minutes total replacement time, 10 hours research to locate its position.

It cost about $9.
Don

Detroit, MI

#9 Jan 24, 2009
Jon wrote:
I just successfully replaced the oil pressure sending unit (also called O.P. Switch) on my:
2000 Ford Ranger V6 3.0 liter 4x4 engine.
Symptom: Flickering oil pressure needle on dashboard gauge. Stuck on L when cold. After warm up, it clicks back to the middle, as normal.
The location was really hard to figure out, so I am posting it here to save others the time.
I found it at the back, passenger side of the block, accessed from the top, not the bottom of the engine. You can't see it from below.
From the top center of the engine, look at about the midpoint of the engine at the very back. Nearest thing as you go further back is the firewall. There are 2 switches back there that screw into the block. The OPSU is the one with a single (green and white stripe) wire. The other switch has a bundle of wires to it. You have to be on top of the engine, physically, looking straight down to see it.
At the auto parts store, though, there was significant confusion over what the part was and they sold me an "oil pressure switch" that had threads on both ends, and a grey barrel shaped plastic mid section. This wasn't the right one, despite what the computer said. Apparently, one sets off an indicator light and the other switch sends variable pressure info to the dash gauge. These might be backwards on the auto parts store computer.
After locating the switch and confirming that it directly affected the needle on the oil pressure gauge (by unplugging the wire), I noted that the electrical connection had a quick-connect, not a threaded ~1/8" screw (as on the first wrong switch). Once I got the right part, it was easy to replace with a deep socket spark plug socket and extended socket wrench with one of those hinged knuckles (because of the weird angle of the switch). My switch came with teflon tape already applied to the threads of the business end. There was no oil leakage during replacement either. 5 minutes total replacement time, 10 hours research to locate its position.
It cost about $9.
You were right on. The part has a white cap and is the size of a spark plug. copy and paste this web site for a photo of the part.------
http://www.autozone.com/selectedZip,31322/ini...
Don

Detroit, MI

#10 Jan 24, 2009
Saved me a lot of time. Thanks
Scott

Olympia, WA

#11 Feb 7, 2009
I have a 2000 4cyl ranger, with the same symptons, where is the sending unit located on the 4 cyl?
Fred in Chandler Az

Mesa, AZ

#12 Feb 14, 2009
Jon, I love you man! I just did everything you said and my 1999 Ford Ranger isn't flickering oil pressure any more! I was about to panic driving home from work one day on the darn freeway, in traffic, and that darn oil pressure gage dove like a swallow. Thanks for your blog!
FRED G.
Don

Rincon, GA

#13 Mar 20, 2009
You were right on. The part has a white cap and is the size of a spark plug. copy and paste this web site for a photo of the part.------
http://www.autozone.com/autozone/catalog/part...
JRSDAD

Loganville, GA

#14 May 22, 2009
DOES ANYONE KNOW WHERE THE OIL SENDING UNIT/SWITCH IS LOCATED ON A 2004 FORD EXPLORER?
eric

Orlando, FL

#15 Jun 2, 2009
i need to find out where the oil sending unit is for an 2001 2.5l 4cyl ranger

thanks you for any information
Todd

United States

#16 Aug 2, 2009
I'm just wondering if when you all were experiencing problems with your oil pressure gauge flickering, did your RPM's ever change when it would flicker. I have a '00 Ranger with the 3.0. In the winter I was experiencing problems where the oil pressure gauge would stay low until the engine ran for about 1 min and then it would flick up and then the check gauge light would turn off. Since it was replaced it has not been stuck, but now this summer it has happened a lot where the gauge will flicker, and the RPM's will drop down to like 400-500. It will only do this when coming to a stop and it is competly random when it happens.
Any ideas?
Roy in NY

Valley Stream, NY

#17 Sep 23, 2009
so it looks like the oil pressure guage is nothing more then an "IDIOT LIGHT" ....

I guess those of us who thought we were getting real guages, are the IDIOTS.

Roy
Leonard

Greer, SC

#18 Oct 14, 2009
My 99 Ranger, 3.0, Automatic, OP switch just started acting strange this week. Stopped by Autozone bought switch for $8.00. Got home could not get the wire cover off the switch due to my left hand not working to good. Called the dealer this AM they wanted $185.00 to replace it.$55.00 for switch and rest for labor. Went to the the local import shop and asked them to do the job for me. 15 min later and "No Charge Sir, Tell someone about us" was my bill.
Terry

Whitehall, WI

#19 Nov 15, 2009
Thanks for that information my ranger is doing the same thing and i couldn,t find it either saved me some headache
Mike

Athens, OH

#20 Dec 16, 2009
Sounds like you got a great deal from the "local import shop." Since you're suppose to tell someone about them, who are they?

Tell me when this thread is updated:

Subscribe Now Add to my Tracker
First Prev
of 6
Next Last

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Ford Ranger Discussions

Title Updated Last By Comments
front end alignment (Nov '08) Feb 21 Lloyd Stoker 7
1987 Ford Ranger won't start? (Feb '07) Feb 13 trevor 8
beep Feb 11 jackie 1
02 ford ranger 4wd not engaging (Jan '11) Feb 11 Dann3232 17
Ranger Ignition Problem (Jun '06) Feb 8 trevor 153
replaced slave cylinder and master cylinder on ... (Sep '08) Feb 7 Ranger 4x4 54
2002 ranger misfire rough idle (Jul '07) Feb 6 TAZ 235
More from around the web