oil pressure light turned on after going threw a puddle

greco2030 · 08-22-2009, 03:07 AM

so tonight going home from work it started raining really bad when i turned on to my street it was completely flooded i didnt think it was THAT deep but was wrong

the water came up to my headlights and as soonas that happend my oil pressure light came on so i pulled into my drive way and shut the car off checked the air filter(short ram intake) a little wet on the outside of the filter but inside was fine checked the dip stick too see if i was low on oil or if some how water go inside i started the car back up and it started right away with no hesitation at all, light was still on. i disconnected the batterie to try to reset everthing but the light is still on...what else could be causing the light to be on? could water of gotten into the oil pressure gauge gotten wet? and is screwing with it?

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Uncle Scotty · 08-22-2009, 01:18 PM

the sender got wet and shorted out

it should be ok when it dries out

FunkRider · 08-22-2009, 06:26 PM

/\++ I had the same problem once. Sender got wet and shorted. You'll notice if you turn the engine off and then key back on the light will be brighter as it can make a 'real' connection with less voltage drop since it is actually seeing no oil pressure with the engine off.

Mulder · 08-22-2009, 08:16 PM

The oil light is an LED rather than a conventional bulb, and it takes only a very small current to make it visibly illuminate. Most likely some water from the puddle got on the sensor and wiring, and since that water is far from pure it's conductive enough to allow some current to flow and turn the light on. If this is the case it should go out once it dries, although it's possible that enough conductive residue could remain to keep it lit.
And disconnecting the battery will have no effect on what that light does.

FunkRider · 08-23-2009, 04:05 PM

If it is an LED how is it possible that it was slightly dim and then brighter without the presence of actual oil pressure in my case?

gopsu · 08-23-2009, 04:55 PM

Quote:

Originally Posted by Uncle Scotty

the sender got wet and shorted out

it should be ok when it dries out

Exactly... same thing happened to my car after washing the engine bay.

CKxx · 08-23-2009, 09:24 PM

...For future reference, I would NEVER drive through water that is up to the headlights.

ride5000 · 08-27-2009, 02:27 PM

Quote:

Originally Posted by CKxx

...For future reference, I would NEVER drive through water that is up to the headlights.

wise.

2fast4every1 · 02-13-2011, 01:22 PM

Quote:

Originally Posted by gopsu

Exactly... same thing happened to my car after washing the engine bay.

I just washed my car, and when I started it, the light came on. I was so scared and my parents would kill me this is my 2nd car five months of having my licence.

Uncle Scotty · 02-13-2011, 02:36 PM

Quote:

Originally Posted by 2fast4every1

I just washed my car, and when I started it, the light came on. I was so scared and my parents would kill me this is my 2nd car five months of having my licence.

this wont end well...........

XanRules · 02-13-2011, 03:27 PM

Quote:

Originally Posted by 2fast4every1

I just washed my car, and when I started it, the light came on. I was so scared and my parents would kill me this is my 2nd car five months of having my licence.

mobomelter · 02-14-2011, 12:17 AM

Quote:

Originally Posted by XanRules

Surprisingly I was less scared of that statement than the whole trying to ford ****ing rivers in a Subaru.

08-22-2009, 03:07 AM	#1
greco2030 Scooby Newbie Member#: 183614 Join Date: Jul 2008 Chapter/Region: Tri-State Location: Nj Vehicle: 2002 wrx aspen white	oil pressure light turned on after going threw a puddle so tonight going home from work it started raining really bad when i turned on to my street it was completely flooded i didnt think it was THAT deep but was wrong the water came up to my headlights and as soonas that happend my oil pressure light came on so i pulled into my drive way and shut the car off checked the air filter(short ram intake) a little wet on the outside of the filter but inside was fine checked the dip stick too see if i was low on oil or if some how water go inside i started the car back up and it started right away with no hesitation at all, light was still on. i disconnected the batterie to try to reset everthing but the light is still on...what else could be causing the light to be on? could water of gotten into the oil pressure gauge gotten wet? and is screwing with it? * Registered users of the site do not see these ads.

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08-22-2009, 01:18 PM	#2
Uncle Scotty Scooby Guru Member#: 16200 Join Date: Mar 2002 Vehicle: OK Houston we have an Uncle	the sender got wet and shorted out it should be ok when it dries out

08-22-2009, 06:26 PM	#3
FunkRider Scooby Specialist Member#: 195055 Join Date: Nov 2008 Chapter/Region: E. Canada Location: Southern Ontario Vehicle: 2002 WRX PSM	/\++ I had the same problem once. Sender got wet and shorted. You'll notice if you turn the engine off and then key back on the light will be brighter as it can make a 'real' connection with less voltage drop since it is actually seeing no oil pressure with the engine off.

08-22-2009, 08:16 PM	#4
Mulder Trust no one Moderator Member#: 11170 Join Date: Oct 2001 Chapter/Region: Tri-State Location: NYC Vehicle: 02 WRX 05 GTO/11 Sonata(!)	The oil light is an LED rather than a conventional bulb, and it takes only a very small current to make it visibly illuminate. Most likely some water from the puddle got on the sensor and wiring, and since that water is far from pure it's conductive enough to allow some current to flow and turn the light on. If this is the case it should go out once it dries, although it's possible that enough conductive residue could remain to keep it lit. And disconnecting the battery will have no effect on what that light does.

08-23-2009, 04:05 PM	#5
FunkRider Scooby Specialist Member#: 195055 Join Date: Nov 2008 Chapter/Region: E. Canada Location: Southern Ontario Vehicle: 2002 WRX PSM	If it is an LED how is it possible that it was slightly dim and then brighter without the presence of actual oil pressure in my case?

08-23-2009, 09:24 PM	#7
CKxx Scooby Specialist Member#: 33458 Join Date: Feb 2003 Chapter/Region: Tri-State Location: PA Vehicle: Your BOV sounds lame 93 RX7+09 Forester	...For future reference, I would NEVER drive through water that is up to the headlights.