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Oil pressure switch

How many wires are conected to the oil pressure switch? only one is conected but it looks like the other one was cut off. please help. thanks

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  • 202 Answers

What car we talking about ???old ones have only one cos its earthing through the switch ,,,,live goes through bulb in dash and earths through the switch

Posted on Feb 13, 2012

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6ya6ya
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Posted on Jan 02, 2017

  • 26 Answers

SOURCE: oil pressure switch

yes a bad oil pres switch can shut off the fuel pump also,but not very often

Posted on Nov 03, 2008

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SOURCE: 1995 VW Passat Oil Pressure Sensor/Leak

ya honestly just fixed that on my 1993! its not a big deal but u got to break it lose with a 24mm deep socket and it works!

Posted on Jan 08, 2009

emissionwiz
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SOURCE: I have an oil leak. Leaking only when car is

yes oil pressure switches are a common source of leaks like this.

Posted on Sep 03, 2009

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SOURCE: looking for oil pressure relief valve on my 95 cabrio

The oil pressure relief valve should be on the oil pump.If your oil pressure is ok,have the wiring tested to theswitches or try another set of clocks

Posted on Sep 16, 2009

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1 Answer

Oil pressure switch


If everything is functioning, it should be okay. The fuel pump relay derives it's ground connection for the relay coil through the switch- you should have 2 of them- 1 for the fuel pump and 1 for the gauge or dash warning light.

if one was cut off, it is likely that the cut wire has been spliced to the one wire that is connected. Sometimes the temporary priming initiated by the ECU at startup was connected there.

Feb 12, 2012 | 2005 Dodge Magnum

1 Answer

When I drive my 02 caravan for 10 minutes the oil light cuts on and the car cuts off. After letting it rest over night, I drive it again and it does the same thing. It seems like it cuts off after the...


Hi, try putting in a new oil pressure switch. If the light continues to come on, you will need a new oil pump. The oil pressure switch cuts off the fuel pump when the oil pressure is low. Please let me know if you have more questions.

Sep 15, 2011 | 2002 Dodge Caravan

1 Answer

1993 chevy caprice classic wagon 5.0 8 cylinder hads a problem with engine shutting off with in seconds after start ! i did check for vapor lock in gas line, had new spark plugs replace, new fule...


Think the oil pressure switch keeps the fuel pump running once started. Suggest replacing Oil pressure switch. And no it won't effect oil pressure reading when it goes bad. The switch is a safety device. When you roll it over and the oil pressure drops the switch cuts off the fuel pump. Neat huh? Need some good feedback Thanks!

Jul 21, 2011 | 1993 Chevrolet Caprice

1 Answer

Can you please tel me the loaction of the oil pressure switch on my 1997 XJ 6


The oil pressure sender unit should be located in the right front corner of the engine block, near the oil filter.If you look at the engine from the front. On the right side about half way down, screwed into the engine block, you'll see a single wire going into a ( approx2inch round diaphragm). That is the oil pressure switch. It near the oil filter. -------------- This should help.Thanks.Helpmech.

Apr 26, 2011 | Jaguar XJ6 Cars & Trucks

1 Answer

1998 jeep wrangler.will start fine for a day or two then will not start, I leave it for a short time and it starts. I have cheched the red wire going to the coil and I'm getting no power to the coil. Also...


Just a few things to check...... Is there oil pressure showing when you crank the motor? Some of the computer systems will cut power to the igntion system if no pressure is sensed, the sender may be faulty.
They are also known to corrode inside the battery cables which would cause many odd things, as you stated when you disconnect & reconnect the battery it works= check these good. also is the battery ok?
Another possibilty is the igntion switch is faulty. Hope this will lead you to the cause.

Mar 14, 2011 | 1998 Jeep Wrangler

1 Answer

My car turns over starts then cuts off


The fuel pump operates off two items upon starting the car. When you first turn the key to the ON position you can hear the fuel pump faintly running inside the fuel tank. If you can not hear it it seems it is working for you stated the engine starts then cuts off. That tells me the engines oil pressure switch is working the fuel pump. On the oil pressure switch this switch has a third wire which is directed to the fuel pump. When the engine reaches full oil pressure the computer shuts off the signal from the oil pressure switch and then the computer turns on the fuel pump relay which stays on until you shut the engine off. I do beleive the fuel pump relay is what you need for it is not working no longer. This will have many relays with the same part number on it. You can easily swap any relay that looks the same with the same numbers on it and try it once to see if the engine stays running.

Apr 09, 2010 | 1990 Oldsmobile Cutlass Supreme Conv

1 Answer

Car start up puts then cuts off as if its not


The fuel pump relay is at fault. Upon starting the engine the fuel pump is feed by the engines oil pressure switch. Once the engines oil pressure is reached to operating pressure the computer shuts off the voltage from the oil pressure switch and turns on the fuel pump relay intill you shut the engine off.
The oil pressure switch has three wires to it. Two are for the oil pressure sinals sent to your dash. The third one is for the fuel pump. It may sound confusing although this system is used by nearly all manufacturers of vehicles

Apr 09, 2010 | 2002 Buick LeSabre

1 Answer

Need to change the oil pressure sqitch on a vw passat


Hi before you do an oil change try seafoam in the engine oil. this can sometimes fix the problems you are having, I used seafoam in engine oil and fuel and breather line and ran engine for 100 miles, but don't run hard, and its cleaned all the sump and oil veins in the engine, as checked with a scope looking though the oil sump plug. it did a really good job, my engine is a bit older than yours 1994. oil sensor is at the bottom of the engine on the sump. pressure sensor is above the oil filter it has a single wire conection
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Jun 12, 2017 | 1998 Volkswagen Passat

2 Answers

Oil pressure gage drops unexpectedly and fips back up. Has had a recent oil change.


The first thing I would check is the wiring to the oil pressure sending unit. It is most likely located in the oil filter mount or somewhere in that area. Chances are, the small wiring harness may have been bumped loose or cracked recently when the oil was changed. It all looks well with the wiring, consider changing the sending unit. Hope this helps!

Aug 26, 2009 | 1999 Dodge Durango

2 Answers

Fuel pump is bad but also no power to fuel pump and relay is fine, where could the problem be coming from


All fords have a fuel pump enertia switch usually located on the passengers kick pannel or in the trunk on the drivers side. have you checked the fuses under the dash and hood? how do you know the relay is good?

Aug 23, 2009 | 1999 Mercury Grand Marquis

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