Question about 1993 Nissan Pickup

1 Answer

What size socket do I need to remove the Nissan oil sending unit?

What size socket do I need to remove the oil pressure sending unit on a 1993 Nissan pickup D21 2WD 4 cyl? The factory unit is larger than the replacement. A 22mm works on the replacement. But the factory unit requires a much larger socket.

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 40 Answers

I think 46
but not sure measur with ruler then buy a socket
other wise use a big adjesterble plyer hold sender unit nut tightly put a big screw drive through the plyer mouth and turn
good luck

Posted on May 08, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What size socket do u need to take off an oil pressure sending switch for a 1996 Chrysler Sebring jx 2.4 ebgine

You must buy the correct is labeled oil pressure sending unit...on the tool shelf...or be careful with channel locks...

Oct 20, 2015 | Chrysler Cars & Trucks

1 Answer

Where is oil sending unit located on a 2002 honda odyssee 3.5 vtech located

I have done this on a 2003 Odyssey EX. The oil pressure switch is located on the oil pump assembly, which is behind the passenger side front wheel. There are 2 sensors - the oil pressure switch is the furthest one and least accessable. You need to pull off the connector, which is very tight. I used a pair of pliars with a cloth to twist it off. Be carefull not to damage the connector. There are 2 different switches available for the 2003, each with different tread sizes. I used a regular wrench to remove/install the switch, and it stopped the leak that prompted the repair. Another TIP: watch how long your wrench is, because you can catch the power steering pressure switch wiring harness and break the thin wires, leading to a much more expensive repair.... Next time I will disconnect the power steering pressure switch first and pay more attention. Or buy a shorter wrench.... Good luck!After you remove take to Auto part store and match up with a new one.Adeep well socket may also's another site I found on removing.
  1. Locate the oil pressure sending unit on the engine.
  2. Note the anti-theft code and radio presets for the radio.
  3. Disconnect the negative battery cable.
  4. Disconnect the sending unit electrical harness.
  5. Using a pressure switch socket, deep-well socket or wrench, loosen and remove the sending unit from the engine.
To install:
  1. Apply a liquid thread sealant to the sending unit and install the sending unit in the engine and tighten securely.
  2. Attach the electrical connector to the sending unit.
  3. Check the engine oil level and top off as necessary.
  4. Connect the negative battery cable.
  5. Enter the anti-theft code and radio presets for the radio.
  6. Start the engine, allow it to reach operating temperature and check for leaks.
  7. Check for proper sending unit operation.

Aug 12, 2015 | Honda Cars & Trucks

2 Answers

How do I change my oil pressure unit

If it is like my 4.6 northstar in 99 deville, it's not easy. From under car look up beside oil filter and you can see to unit. Remove filter for better access, but still not easy.

Feb 23, 2015 | 2004 Cadillac Escalade

1 Answer

I have a 1989 gmc s-15, I need to replace the oil pressure sensor, what size socket do I need?

well go to auto parts store buy the oil pressure sending unit then while you at auto parts store you can take new oil pressure sending unit try different size sockets to find the correct size socket you need.

Oct 27, 2013 | 1983 GMC S-15 Pickup

1 Answer

I need to replace the oil sender switch on my 2002 Buick La Sabre

first need to buy oil pressure sending unit 3/8 deep socket remove oil pressure sending unit you need teflon tap sealer for oil sending unit threads.okay to replace oil pressure sending need safe raise support vechicle locate oil pressure sending unit next to the oil filter.disconnect oil pressure sending unit wire connector then use oil pressure sending unit 3/8 socket remove the sending unit.then take new oil pressure sending unit use teflon tape white plumbers tape or use thread sealer apply to the oil pressure sending unit threads then install new oil pressure sending unit and reconnect electrical connector to sending unit.then crank engine check for oil leak if all is good lower vechicle back to ground wait several minutes check engine oil good to roll.

Feb 09, 2013 | 2002 Buick LeSabre

1 Answer

High oil pressure

First thing is find out if the oi pressure is really high. Remove the oil pressure sending unit and hook up a oil pressure test gauge kit, if the pressure is within normal then replace the sending unit first. (requires a special socket)

Jun 18, 2012 | 2006 Nissan Xterra

2 Answers

My 2005 Nissan Armada is reading oil pressure abnormally high. The gauge is maxed out.

  • Well it could be a bad oil pump or a bad Oil Sending Unit. If you have an oil pressure gauge you can pull the sending unit and stick the pressure gauge in there and see what the reading is. I would thing 60PSI would be suitable.
  • I believe this Oil Sending Unit is on the front (possibly the back) of the oil pan.
  • Just remove the connector and put a wrench (or a deep socket) and twist it out and replace with a new one.
  • Make sure the oil filter is snug and not leaking as well.
  • Check your oil level too and make sure it is properly filled.
  • Good luck and thank you for using FixYa.

Regards, Tony

Jun 13, 2011 | 2005 Nissan Armada

1 Answer


You might be looking at the oil pressure sending unit in this that case, an oil pressure sending unit socket is what you need...many mechanics still use channel locks to remove/replace this unit...Hope this helps.

Feb 01, 2011 | 1993 Jeep Grand Cherokee

1 Answer

My 04 nissan xterra oil pressure comes on when turning sharp or braking hard. Light only stays on for 1-2 seconds. The oil was black when I bought it recently. Changed and still dark/dirty. Is this...

the engine may be slugged up from lack of maintenance/oil changes, since the oil was black when you purchased the truck. was the light coming on before you changed the oil?? if not, try changing the oil filter for nissan one. if that doesnt do it than you can dump some internal engine cleaner into it if you want, but it may develop external oil leaks. the oil builds up a film after a while inside of you engine. if you wash it off, the engine may start leaking oil. to really diagnose this, you should take oil pressure reading at the oil pressure sending unit. you will ofcourse need some specialty tools to do this job such as pressure gauge and oil pressure sending unit socket to remove it so you can screw the gauge into it.good luck.

Dec 26, 2010 | 2000 Nissan Xterra

1 Answer

Where is the oil pressure sensor located

Oil pressure switch or oil pressure sending unit.most cars have both.If it has one wire it is an oil pressure sending unit. if it has a plug with 2 or more wires it is an oil pressure switch and sends a signal to the inboard computer. Remove the wire either a nut or usually a plug.some sending units take a special socket but if you can get a wrench on it turn it counter clock wise and unscrew it. When you get the new one it will have a red material on the threads, this is a sealant.thread the new switch snug and put you plug back on.The sending unit or oil pressure switch is located next to the oil filter. Good luck and keep me posted, Auto Zone will have this part and also have the step by step instructions for you to get the job done.

Nov 17, 2009 | 1996 Nissan Sentra

Not finding what you are looking for?
1993 Nissan Pickup Logo

321 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts


Level 3 Expert

76132 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Are you a Nissan Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides